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MD31B Diesel Engine

Manufactured between the years of 1986 - 1994

Engine

59hp (43.5kW)@3500rpm

  • 3517857 - Volvo Penta MD31B Diesel Engine Oil Filter - Genuine
    3517857
    Oil Filter - Genuine
    Keypart Price
    £14.69 (inc VAT)
    £12.24 (ex VAT)
    List Price
    £16.32 (inc VAT)
    £13.60 (ex VAT)
    Low Stock

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  • 858488-R - Volvo Penta MD31B Diesel Engine Air Filter - 200 mm Diameter with Screw-on Cover - Replacement
    858488-R
    Air Filter - 200 mm Diameter with Screw-on Cover - Replacement
    Keypart Price
    £33.94 (inc VAT)
    £28.28 (ex VAT)
    List Price
    £48.48 (inc VAT)
    £40.40 (ex VAT)
    In Stock

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  • 858488 - Volvo Penta MD31B Diesel Engine Air Filter - 200 mm Diameter with Screw-on Cover - Genuine
    858488
    Air Filter - 200 mm Diameter with Screw-on Cover - Genuine
    Keypart Price
    £43.63 (inc VAT)
    £36.36 (ex VAT)
    List Price
    £48.48 (inc VAT)
    £40.40 (ex VAT)
    In Stock

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  • 21646645-R - Volvo Penta MD31B Diesel Engine Air Filter - 150 mm Diameter with Clip-on Cover - Replacement
    21646645-R
    Air Filter - 150 mm Diameter with Clip-on Cover - Replacement
    Keypart Price
    £44.69 (inc VAT)
    £37.24 (ex VAT)
    List Price
    £63.84 (inc VAT)
    £53.20 (ex VAT)
    In Stock

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  • 21646645 - Volvo Penta MD31B Diesel Engine Air Filter - 150 mm Diameter with Clip-on Cover - Genuine
    21646645
    Air Filter - 150 mm Diameter with Clip-on Cover - Genuine
    Keypart Price
    £57.46 (inc VAT)
    £47.88 (ex VAT)
    List Price
    £63.84 (inc VAT)
    £53.20 (ex VAT)
    In Stock

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  • 876069-R - Volvo Penta MD31B Diesel Engine Crankcase Breather Filter - Replacement
    876069-R
    Crankcase Breather Filter - Replacement
    Keypart Price
    £45.70 (inc VAT)
    £38.08 (ex VAT)
    List Price
    £65.28 (inc VAT)
    £54.40 (ex VAT)
    Low Stock

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  • 876069 - Volvo Penta MD31B Diesel Engine Crankcase Breather Filter - Genuine
    876069
    Crankcase Breather Filter - Genuine
    Keypart Price
    £61.67 (inc VAT)
    £51.39 (ex VAT)
    List Price
    £68.52 (inc VAT)
    £57.10 (ex VAT)
    In Stock

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  • 3582432-R - Volvo Penta MD31B Diesel Engine Cylinder Head Gasket
    3582432-R
    Cylinder Head Gasket
    Keypart Price
    £174.60 (inc VAT)
    £145.50 (ex VAT)
    List Price
    £232.80 (inc VAT)
    £194.00 (ex VAT)
    In Stock

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  • 838654 - Volvo Penta MD31B Diesel Engine Rocker Cover Gasket - Upper - (2 Required per Engine)
    838654
    Rocker Cover Gasket - Upper - (2 Required per Engine)
    Keypart Price
    £8.86 (inc VAT)
    £7.38 (ex VAT)
    List Price
    £9.84 (inc VAT)
    £8.20 (ex VAT)
    In Stock

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  • 876144-R - Volvo Penta MD31B Diesel Engine Exhaust Manifold Gasket Kit - (2 Required per Engine)
    876144-R
    Exhaust Manifold Gasket Kit - (2 Required per Engine)
    Keypart Price
    £27.94 (inc VAT)
    £23.28 (ex VAT)
    List Price
    £34.92 (inc VAT)
    £29.10 (ex VAT)
    In Stock

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  • 948187-R - Volvo Penta MD31B Diesel Engine Sump Drain Plug
    948187-R
    Sump Drain Plug
    Keypart Price
    £4.97 (inc VAT)
    £4.14 (ex VAT)
    List Price
    £5.52 (inc VAT)
    £4.60 (ex VAT)
    Please Contact for Stock Status

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  • 18818-R - Volvo Penta MD31B Diesel Engine Washer for Sump Drain Plug - Replacement
    18818-R
    Washer for Sump Drain Plug - Replacement
    Keypart Price
    £1.15 (inc VAT)
    £0.96 (ex VAT)
    In Stock

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Lubricants

Engine oil capacity is approximately 9.00 Litres

  • 23909453 - Volvo Penta MD31B Diesel Engine VDS-3 15W/40 Volvo Engine Oil 1-Litre - Genuine (Not available to customers outside the UK) - (May be mixed with VDS-4)
    23909453
    VDS-3 15W/40 Volvo Engine Oil 1-Litre - Genuine (Not available to customers outside the UK) - (May be mixed with VDS-4)
    Keypart Price
    £12.31 (inc VAT)
    £10.26 (ex VAT)
    List Price
    £13.68 (inc VAT)
    £11.40 (ex VAT)
    In Stock

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  • 23068343 - Volvo Penta MD31B Diesel Engine VDS-4.5 15W/40 High-performance Volvo Engine Oil 5-Litre - Genuine (Not available to customers outside the UK) - (may be mixed with VDS-3)
    23068343
    VDS-4.5 15W/40 High-performance Volvo Engine Oil 5-Litre - Genuine (Not available to customers outside the UK) - (may be mixed with VDS-3)
    Keypart Price
    £51.96 (inc VAT)
    £43.30 (ex VAT)
    In Stock

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  • 23039851 - Volvo Penta MD31B Diesel Engine VDS-4.5 15W/40 High-performance Volvo Engine Oil 20-Litre - Genuine (Not available to customers outside the UK) - (may be mixed with VDS-3)
    23039851
    VDS-4.5 15W/40 High-performance Volvo Engine Oil 20-Litre - Genuine (Not available to customers outside the UK) - (may be mixed with VDS-3)
    Keypart Price
    £129.60 (inc VAT)
    £108.00 (ex VAT)
    List Price
    £162.00 (inc VAT)
    £135.00 (ex VAT)
    In Stock

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  • 22567206 - Volvo Penta MD31B Diesel Engine Type 90 Green Coolant/Anti-freeze Concentrate - 5 Litre - Genuine - May NOT be mixed with Yellow (Not available to customers outside the UK)
    22567206
    Type 90 Green Coolant/Anti-freeze Concentrate - 5 Litre - Genuine - May NOT be mixed with Yellow (Not available to customers outside the UK)
    Keypart Price
    £55.51 (inc VAT)
    £46.26 (ex VAT)
    List Price
    £61.68 (inc VAT)
    £51.40 (ex VAT)
    In Stock

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  • 22567295 - Volvo Penta MD31B Diesel Engine VCS Yellow Coolant/Anti-Freeze Concentrate 5 Litre - Genuine - May NOT be mixed with Green (Not available to customers outside the UK)
    22567295
    VCS Yellow Coolant/Anti-Freeze Concentrate 5 Litre - Genuine - May NOT be mixed with Green (Not available to customers outside the UK)
    Keypart Price
    £53.46 (inc VAT)
    £44.55 (ex VAT)
    List Price
    £59.40 (inc VAT)
    £49.50 (ex VAT)
    Please Contact for Stock Status

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Cooling System

Coolant Capacity is approximately 13.0 Litres

  • 947893 - Volvo Penta MD31B Diesel Engine Drain Tap - for Cylinder Block
    947893
    Drain Tap - for Cylinder Block
    Keypart Price
    £15.12 (inc VAT)
    £12.60 (ex VAT)
    List Price
    £16.80 (inc VAT)
    £14.00 (ex VAT)
    In Stock

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  • 3831424-R - Volvo Penta MD31B Diesel Engine Thermostat Kit - (2 Required per Engine)
    3831424-R
    Thermostat Kit - (2 Required per Engine)
    Keypart Price
    £21.60 (inc VAT)
    £18.00 (ex VAT)
    List Price
    £38.28 (inc VAT)
    £31.90 (ex VAT)
    Low Stock

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  • 838929-R - Volvo Penta MD31B Diesel Engine Zinc Pencil Anode - Sea-water use
    838929-R
    Zinc Pencil Anode - Sea-water use
    Keypart Price
    £7.90 (inc VAT)
    £6.58 (ex VAT)
    List Price
    £11.28 (inc VAT)
    £9.40 (ex VAT)
    Low Stock

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  • 838929M - Volvo Penta MD31B Diesel Engine Magnesium Pencil Anode - Fresh-water use
    838929M
    Magnesium Pencil Anode - Fresh-water use
    Keypart Price
    £10.08 (inc VAT)
    £8.40 (ex VAT)
    List Price
    £12.60 (inc VAT)
    £10.50 (ex VAT)
    In Stock

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  • 838928-R - Volvo Penta MD31B Diesel Engine Brass Holder for 838929 Pencil Anode
    838928-R
    Brass Holder for 838929 Pencil Anode
    Keypart Price
    £15.07 (inc VAT)
    £12.56 (ex VAT)
    List Price
    £18.84 (inc VAT)
    £15.70 (ex VAT)
    Low Stock

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  • 841693-R - Volvo Penta MD31B Diesel Engine Seawater Pump Cover Screw
    841693-R
    Seawater Pump Cover Screw
    Keypart Price
    £3.46 (inc VAT)
    £2.88 (ex VAT)
    List Price
    £4.32 (inc VAT)
    £3.60 (ex VAT)
    In Stock

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  • 808275-R - Volvo Penta MD31B Diesel Engine Seawater Pump Cover Gasket
    808275-R
    Seawater Pump Cover Gasket
    Keypart Price
    £7.20 (inc VAT)
    £6.00 (ex VAT)
    List Price
    £9.00 (inc VAT)
    £7.50 (ex VAT)
    Low Stock

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  • 3581618 - Volvo Penta MD31B Diesel Engine Seawater Pump Cover O-ring - Genuine - for Pumps without Gasket
    3581618
    Seawater Pump Cover O-ring - Genuine - for Pumps without Gasket
    Keypart Price
    £2.05 (inc VAT)
    £1.71 (ex VAT)
    List Price
    £2.28 (inc VAT)
    £1.90 (ex VAT)
    In Stock

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  • 858467-R - Volvo Penta MD31B Diesel Engine Seawater Pump Drive Coupling
    858467-R
    Seawater Pump Drive Coupling
    Keypart Price
    £20.45 (inc VAT)
    £17.04 (ex VAT)
    List Price
    £25.56 (inc VAT)
    £21.30 (ex VAT)
    In Stock

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  • 968971-R - Volvo Penta MD31B Diesel Engine Seawater Pump to Block O-ring
    968971-R
    Seawater Pump to Block O-ring
    Keypart Price
    £5.29 (inc VAT)
    £4.41 (ex VAT)
    List Price
    £5.88 (inc VAT)
    £4.90 (ex VAT)
    In Stock

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  • 21951356-R - Volvo Penta MD31B Diesel Engine Impeller Kit - Replacement - (WITHOUT thread for removal Tool)
    21951356-R
    Impeller Kit - Replacement - (WITHOUT thread for removal Tool)
    Keypart Price
    £46.96 (inc VAT)
    £39.13 (ex VAT)
    List Price
    £67.08 (inc VAT)
    £55.90 (ex VAT)
    In Stock

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  • 21951356 - Volvo Penta MD31B Diesel Engine Impeller Kit - Genuine - (WITH thread for removal Tool - Tool NOT included)
    21951356
    Impeller Kit - Genuine - (WITH thread for removal Tool - Tool NOT included)
    Keypart Price
    £65.34 (inc VAT)
    £54.45 (ex VAT)
    List Price
    £72.60 (inc VAT)
    £60.50 (ex VAT)
    In Stock

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  • 3843947 - Volvo Penta MD31B Diesel Engine Impeller Removal Tool for Genuine 21951356 Impeller only
    3843947
    Impeller Removal Tool for Genuine 21951356 Impeller only
    Keypart Price
    £13.32 (inc VAT)
    £11.10 (ex VAT)
    Low Stock

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Fuel System (Engine)

  • 21492771-R - Volvo Penta MD31B Diesel Engine Fuel Filter - Replacement - - Spin-on type for Engine
    21492771-R
    Fuel Filter - Replacement - - Spin-on type for Engine
    Keypart Price
    £11.09 (inc VAT)
    £9.24 (ex VAT)
    List Price
    £15.84 (inc VAT)
    £13.20 (ex VAT)
    In Stock

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  • 21492771 - Volvo Penta MD31B Diesel Engine Fuel Filter - Genuine - - Spin-on Type for Engine
    21492771
    Fuel Filter - Genuine - - Spin-on Type for Engine
    Keypart Price
    £14.26 (inc VAT)
    £11.88 (ex VAT)
    List Price
    £15.84 (inc VAT)
    £13.20 (ex VAT)
    In Stock

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  • 273663-R - Volvo Penta MD31B Diesel Engine Fuel Pump Strainer Kit for Non-sealed Lift Pumps
    273663-R
    Fuel Pump Strainer Kit for Non-sealed Lift Pumps
    Keypart Price
    £18.00 (inc VAT)
    £15.00 (ex VAT)
    List Price
    £21.60 (inc VAT)
    £18.00 (ex VAT)
    In Stock

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  • 3582310-R - Volvo Penta MD31B Diesel Engine Fuel Lift Pump Assembly - Late Sealed Type
    3582310-R
    Fuel Lift Pump Assembly - Late Sealed Type
    Keypart Price
    £88.22 (inc VAT)
    £73.52 (ex VAT)
    List Price
    £110.28 (inc VAT)
    £91.90 (ex VAT)
    In Stock

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  • 860447-R - Volvo Penta MD31B Diesel Engine Fuel Hose (Required when upgrading to Sealed Pump) - Replacement
    860447-R
    Fuel Hose (Required when upgrading to Sealed Pump) - Replacement
    Keypart Price
    £69.98 (inc VAT)
    £58.32 (ex VAT)
    List Price
    £116.64 (inc VAT)
    £97.20 (ex VAT)
    In Stock

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  • 860447 - Volvo Penta MD31B Diesel Engine Fuel Pipe (Required when upgrading to Sealed Pump) - Genuine
    860447
    Fuel Pipe (Required when upgrading to Sealed Pump) - Genuine
    Keypart Price
    £111.24 (inc VAT)
    £92.70 (ex VAT)
    List Price
    £123.60 (inc VAT)
    £103.00 (ex VAT)
    Special Order Usually 3 - 5 Days

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  • 3501530-R - Volvo Penta MD31B Diesel Engine Fuel Pump Gasket
    3501530-R
    Fuel Pump Gasket
    Keypart Price
    £2.94 (inc VAT)
    £2.45 (ex VAT)
    List Price
    £8.40 (inc VAT)
    £7.00 (ex VAT)
    In Stock

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  • 876614 - Volvo Penta MD31B Diesel Engine Injector Pump Mounted - Stop Solenoid 12V
    876614
    Injector Pump Mounted - Stop Solenoid 12V
    Keypart Price
    £382.32 (inc VAT)
    £318.60 (ex VAT)
    List Price
    £424.80 (inc VAT)
    £354.00 (ex VAT)
    In Stock

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Optional Fuel System Components

For additional types of Fuel Filters & Elements, please visit the Racor & Separ sections of our Website. These can be found under the "Accessories" heading on our Home Page.

  • 3581078-R - Volvo Penta MD31B Diesel Engine Fuel Filter for CAV/Delphi 296 Pre-filter (Optional) - Replacement
    3581078-R
    Fuel Filter for CAV/Delphi 296 Pre-filter (Optional) - Replacement
    Keypart Price
    £7.31 (inc VAT)
    £6.09 (ex VAT)
    List Price
    £10.44 (inc VAT)
    £8.70 (ex VAT)
    In Stock

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  • 3581078 - Volvo Penta MD31B Diesel Engine Fuel Filter for CAV/Delphi 296 Pre-filter - Genuine
    3581078
    Fuel Filter for CAV/Delphi 296 Pre-filter - Genuine
    Keypart Price
    £9.40 (inc VAT)
    £7.83 (ex VAT)
    List Price
    £10.44 (inc VAT)
    £8.70 (ex VAT)
    In Stock

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  • FF105D - Volvo Penta MD31B Diesel Engine Fuel Filter - Fleetguard
    FF105D
    Fuel Filter - Fleetguard
    Keypart Price
    £14.40 (inc VAT)
    £12.00 (ex VAT)
    List Price
    £18.00 (inc VAT)
    £15.00 (ex VAT)
    Low Stock

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  • FS1212 - Volvo Penta MD31B Diesel Engine Fuel Filter - Fleetguard
    FS1212
    Fuel Filter - Fleetguard
    Keypart Price
    £17.05 (inc VAT)
    £14.21 (ex VAT)
    List Price
    £21.31 (inc VAT)
    £17.76 (ex VAT)
    Low Stock

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Electrical System

  • 19923 - Volvo Penta MD31B Diesel Engine 12V/2W Panel Light Bulb - White Bayonet Type - Genuine
    19923
    12V/2W Panel Light Bulb - White Bayonet Type - Genuine
    Keypart Price
    £1.94 (inc VAT)
    £1.62 (ex VAT)
    List Price
    £2.16 (inc VAT)
    £1.80 (ex VAT)
    In Stock

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  • 863946 - Volvo Penta MD31B Diesel Engine 12V/1.2W Red Capless Bulb for Late Type Panels - Genuine
    863946
    12V/1.2W Red Capless Bulb for Late Type Panels - Genuine
    Keypart Price
    £5.08 (inc VAT)
    £4.23 (ex VAT)
    List Price
    £5.64 (inc VAT)
    £4.70 (ex VAT)
    In Stock

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  • 966978-R - Volvo Penta MD31B Diesel Engine Drive Belt Set - Replacement
    966978-R
    Drive Belt Set - Replacement
    Keypart Price
    £28.22 (inc VAT)
    £23.52 (ex VAT)
    List Price
    £35.28 (inc VAT)
    £29.40 (ex VAT)
    In Stock

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  • 966978 - Volvo Penta MD31B Diesel Engine Drive Belt Set - Genuine
    966978
    Drive Belt Set - Genuine
    Keypart Price
    £33.37 (inc VAT)
    £27.81 (ex VAT)
    List Price
    £37.08 (inc VAT)
    £30.90 (ex VAT)
    Low Stock

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  • 873770-R - Volvo Penta MD31B Diesel Engine 14V/60A Alternator Assembly (Pulley NOT included)
    873770-R
    14V/60A Alternator Assembly (Pulley NOT included)
    Keypart Price
    £304.20 (inc VAT)
    £253.50 (ex VAT)
    List Price
    £468.00 (inc VAT)
    £390.00 (ex VAT)
    Low Stock

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  • 3581774-R - Volvo Penta MD31B Diesel Engine Starter Motor Assembly
    3581774-R
    Starter Motor Assembly
    Keypart Price
    £390.00 (inc VAT)
    £325.00 (ex VAT)
    List Price
    £668.40 (inc VAT)
    £557.00 (ex VAT)
    Low Stock

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  • 22637542 - Volvo Penta MD31B Diesel Engine Engine Starter Relay
    22637542
    Engine Starter Relay
    Keypart Price
    £41.04 (inc VAT)
    £34.20 (ex VAT)
    List Price
    £45.60 (inc VAT)
    £38.00 (ex VAT)
    In Stock

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  • 22354203 - Volvo Penta MD31B Diesel Engine Logic Control Unit for Alarm Module (includes 4 x LED) - Genuine
    22354203
    Logic Control Unit for Alarm Module (includes 4 x LED) - Genuine
    Keypart Price
    £353.16 (inc VAT)
    £294.30 (ex VAT)
    List Price
    £392.40 (inc VAT)
    £327.00 (ex VAT)
    Please Contact for Stock Status

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  • 828587 - Volvo Penta MD31B Diesel Engine Alarm Siren - Genuine
    828587
    Alarm Siren - Genuine
    Keypart Price
    £81.97 (inc VAT)
    £68.31 (ex VAT)
    List Price
    £91.08 (inc VAT)
    £75.90 (ex VAT)
    In Stock

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  • 3587072 - Volvo Penta MD31B Diesel Engine Key Switch Assembly with 2 Keys - Genuine
    3587072
    Key Switch Assembly with 2 Keys - Genuine
    Keypart Price
    £227.88 (inc VAT)
    £189.90 (ex VAT)
    List Price
    £253.20 (inc VAT)
    £211.00 (ex VAT)
    In Stock

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  • 966689 - Volvo Penta MD31B Diesel Engine Reset Fuse Unit - Genuine
    966689
    Reset Fuse Unit - Genuine
    Keypart Price
    £18.04 (inc VAT)
    £15.03 (ex VAT)
    List Price
    £20.04 (inc VAT)
    £16.70 (ex VAT)
    In Stock

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  • 863169 - Volvo Penta MD31B Diesel Engine Oil Pressure Switch for Warning Light & Alarm
    863169
    Oil Pressure Switch for Warning Light & Alarm
    Keypart Price
    £89.96 (inc VAT)
    £74.97 (ex VAT)
    List Price
    £99.96 (inc VAT)
    £83.30 (ex VAT)
    In Stock

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  • 873601 - Volvo Penta MD31B Diesel Engine Conversion Harness (Required when changing Oil Pressure Switch) - Genuine
    873601
    Conversion Harness (Required when changing Oil Pressure Switch) - Genuine
    Keypart Price
    £13.07 (inc VAT)
    £10.89 (ex VAT)
    List Price
    £14.52 (inc VAT)
    £12.10 (ex VAT)
    In Stock

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  • 873120-R - Volvo Penta MD31B Diesel Engine Split Charge Unit for Remote Mounting 70A Max
    873120-R
    Split Charge Unit for Remote Mounting 70A Max
    Keypart Price
    £139.20 (inc VAT)
    £116.00 (ex VAT)
    List Price
    £174.00 (inc VAT)
    £145.00 (ex VAT)
    Special Order Usually 3 - 5 Days

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  • 873517 - Volvo Penta MD31B Diesel Engine Tacho Bezel for 873992 when replacing units with Analogue Hourmeters
    873517
    Tacho Bezel for 873992 when replacing units with Analogue Hourmeters
    Keypart Price
    £8.96 (inc VAT)
    £7.47 (ex VAT)
    List Price
    £9.96 (inc VAT)
    £8.30 (ex VAT)
    In Stock

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  • 866833 - Volvo Penta MD31B Diesel Engine Oil Pressure Sender for Gauge - Genuine - NOT suitable for flybridge installations with two Gauges - (Nut connectors)
    866833
    Oil Pressure Sender for Gauge - Genuine - NOT suitable for flybridge installations with two Gauges - (Nut connectors)
    Keypart Price
    £183.60 (inc VAT)
    £153.00 (ex VAT)
    List Price
    £204.00 (inc VAT)
    £170.00 (ex VAT)
    In Stock

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  • 23715874 - Volvo Penta MD31B Diesel Engine Tacho/Hourmeter 0-4000rpm
    23715874
    Tacho/Hourmeter 0-4000rpm
    Keypart Price
    £313.20 (inc VAT)
    £261.00 (ex VAT)
    List Price
    £348.00 (inc VAT)
    £290.00 (ex VAT)
    Special Order Usually 3 - 5 Days

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  • 23715875 - Volvo Penta MD31B Diesel Engine Tacho/Hourmeter 0-6000rpm
    23715875
    Tacho/Hourmeter 0-6000rpm
    Keypart Price
    £319.68 (inc VAT)
    £266.40 (ex VAT)
    List Price
    £355.20 (inc VAT)
    £296.00 (ex VAT)
    Please Contact for Stock Status

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  • 876614 - Volvo Penta MD31B Diesel Engine Injector Pump Mounted - Stop Solenoid 12V
    876614
    Injector Pump Mounted - Stop Solenoid 12V
    Keypart Price
    £382.32 (inc VAT)
    £318.60 (ex VAT)
    List Price
    £424.80 (inc VAT)
    £354.00 (ex VAT)
    In Stock

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Repair Kits

  • 3582435 - Volvo Penta MD31B Diesel Engine De-Coke Gasket Kit
    3582435
    De-Coke Gasket Kit
    Keypart Price
    £518.40 (inc VAT)
    £432.00 (ex VAT)
    List Price
    £576.00 (inc VAT)
    £480.00 (ex VAT)
    Please Contact for Stock Status

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  • 876361-R - Volvo Penta MD31B Diesel Engine Additional Gasket Kit
    876361-R
    Additional Gasket Kit
    Keypart Price
    £252.00 (inc VAT)
    £210.00 (ex VAT)
    List Price
    £412.80 (inc VAT)
    £344.00 (ex VAT)
    Special Order Usually 7 - 9 Days

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  • 22016 - Volvo Penta MD31B Diesel Engine Seawater Pump Gasket & Seal Kit
    22016
    Seawater Pump Gasket & Seal Kit
    Keypart Price
    £16.51 (inc VAT)
    £13.76 (ex VAT)
    List Price
    £20.64 (inc VAT)
    £17.20 (ex VAT)
    Please Contact for Stock Status

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  • 22026 - Volvo Penta MD31B Diesel Engine Fuel Pipe Washer Kit
    22026
    Fuel Pipe Washer Kit
    Keypart Price
    £7.84 (inc VAT)
    £6.53 (ex VAT)
    List Price
    £10.45 (inc VAT)
    £8.71 (ex VAT)
    Special Order Usually 7 - 9 Days

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  • 828422-R - Volvo Penta MD31B Diesel Engine Rubber Stuffing Box for 30 mm Shaft wiith Sleeve Diameter of 48mm - Replacement
    828422-R
    Rubber Stuffing Box for 30 mm Shaft wiith Sleeve Diameter of 48mm - Replacement
    Keypart Price
    £108.00 (inc VAT)
    £90.00 (ex VAT)
    List Price
    £144.00 (inc VAT)
    £120.00 (ex VAT)
    In Stock

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  • 828526-R - Volvo Penta MD31B Diesel Engine Rubber Stuffing Box for 35 mm Shaft with Sleeve Diameter of 54mm - Replacement
    828526-R
    Rubber Stuffing Box for 35 mm Shaft with Sleeve Diameter of 54mm - Replacement
    Keypart Price
    £141.12 (inc VAT)
    £117.60 (ex VAT)
    List Price
    £201.60 (inc VAT)
    £168.00 (ex VAT)
    In Stock

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  • 828527-R - Volvo Penta MD31B Diesel Engine Rubber Stuffing Box for 40 mm Shaft with Sleeve Diameter of 60mm - Replacement
    828527-R
    Rubber Stuffing Box for 40 mm Shaft with Sleeve Diameter of 60mm - Replacement
    Keypart Price
    £148.68 (inc VAT)
    £123.90 (ex VAT)
    List Price
    £212.40 (inc VAT)
    £177.00 (ex VAT)
    In Stock

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  • 828422 - Volvo Penta MD31B Diesel Engine Rubber Stuffing Box for 30 mm Shaft wiith Sleeve Diameter of 48mm - Genuine
    828422
    Rubber Stuffing Box for 30 mm Shaft wiith Sleeve Diameter of 48mm - Genuine
    Keypart Price
    £140.40 (inc VAT)
    £117.00 (ex VAT)
    List Price
    £156.00 (inc VAT)
    £130.00 (ex VAT)
    In Stock

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  • 828526 - Volvo Penta MD31B Diesel Engine Rubber Stuffing Box for 35 mm Shaft with Sleeve Diameter of 54mm - Genuine
    828526
    Rubber Stuffing Box for 35 mm Shaft with Sleeve Diameter of 54mm - Genuine
    Keypart Price
    £181.44 (inc VAT)
    £151.20 (ex VAT)
    List Price
    £201.60 (inc VAT)
    £168.00 (ex VAT)
    Please Contact for Stock Status

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  • 828527 - Volvo Penta MD31B Diesel Engine Rubber Stuffing Box for 40 mm Shaft with Sleeve Diameter of 60mm - Genuine
    828527
    Rubber Stuffing Box for 40 mm Shaft with Sleeve Diameter of 60mm - Genuine
    Keypart Price
    £207.36 (inc VAT)
    £172.80 (ex VAT)
    List Price
    £230.40 (inc VAT)
    £192.00 (ex VAT)
    Special Order Usually 3 - 5 Days

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  • 828250 - Volvo Penta MD31B Diesel Engine 25G Tube Of Grease for Rubber Stuffing Box - Genuine
    828250
    25G Tube Of Grease for Rubber Stuffing Box - Genuine
    Keypart Price
    £4.97 (inc VAT)
    £4.14 (ex VAT)
    List Price
    £5.52 (inc VAT)
    £4.60 (ex VAT)
    In Stock

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MS2 Reverse Gear

MS2 Gearbox Oil Capacity is approximately 0.85 Litres (use Engine Oil)

  • 875704 - Volvo Penta MD31B Diesel Engine Gasket & Seal Kit - Genuine
    875704
    Gasket & Seal Kit - Genuine
    Keypart Price
    £200.88 (inc VAT)
    £167.40 (ex VAT)
    List Price
    £223.20 (inc VAT)
    £186.00 (ex VAT)
    Special Order Usually 7 - 9 Days

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  • 925054-R - Volvo Penta MD31B Diesel Engine O-Ring - for Dipstick
    925054-R
    O-Ring - for Dipstick
    Keypart Price
    £1.92 (inc VAT)
    £1.60 (ex VAT)
    In Stock

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  • 958838-R - Volvo Penta MD31B Diesel Engine Seal Ring - for Gear Selector
    958838-R
    Seal Ring - for Gear Selector
    Keypart Price
    £14.06 (inc VAT)
    £11.72 (ex VAT)
    List Price
    £17.58 (inc VAT)
    £14.65 (ex VAT)
    In Stock

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  • OR-659 - Volvo Penta MD31B Diesel Engine O-Ring - for Gear Selector Housing
    OR-659
    O-Ring - for Gear Selector Housing
    Keypart Price
    £2.70 (inc VAT)
    £2.25 (ex VAT)
    List Price
    £3.00 (inc VAT)
    £2.50 (ex VAT)
    Low Stock

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  • OR-473 - Volvo Penta MD31B Diesel Engine O-Ring - for Oil Filler Cap
    OR-473
    O-Ring - for Oil Filler Cap
    Keypart Price
    £4.13 (inc VAT)
    £3.44 (ex VAT)
    List Price
    £5.16 (inc VAT)
    £4.30 (ex VAT)
    In Stock

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  • 951924 - Volvo Penta MD31B Diesel Engine Roll Pin - for Gear Selector
    951924
    Roll Pin - for Gear Selector
    Keypart Price
    £2.28 (inc VAT)
    £1.90 (ex VAT)
    List Price
    £3.72 (inc VAT)
    £3.10 (ex VAT)
    In Stock

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  • 803762-R - Volvo Penta MD31B Diesel Engine Rubber Element for Volvo Flexible Coupling (4 or 6 required)
    803762-R
    Rubber Element for Volvo Flexible Coupling (4 or 6 required)
    Keypart Price
    £42.82 (inc VAT)
    £35.68 (ex VAT)
    List Price
    £53.52 (inc VAT)
    £44.60 (ex VAT)
    In Stock

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MS4A & MS4B Reverse Gear

MS4A & MS4B Gearbox Oil Capacity is approximately 1.7 Litres

  • 876073 - Volvo Penta MD31B Diesel Engine Gasket & Seal Kit - Genuine
    876073
    Gasket & Seal Kit - Genuine
    Keypart Price
    £195.48 (inc VAT)
    £162.90 (ex VAT)
    List Price
    £217.20 (inc VAT)
    £181.00 (ex VAT)
    Special Order Usually 3 - 5 Days

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  • 955974-R - Volvo Penta MD31B Diesel Engine O-ring - for Dipstick
    955974-R
    O-ring - for Dipstick
    Keypart Price
    £0.71 (inc VAT)
    £0.59 (ex VAT)
    In Stock

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  • 958838-R - Volvo Penta MD31B Diesel Engine Seal Ring - for Gear Selector
    958838-R
    Seal Ring - for Gear Selector
    Keypart Price
    £14.06 (inc VAT)
    £11.72 (ex VAT)
    List Price
    £17.58 (inc VAT)
    £14.65 (ex VAT)
    In Stock

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  • 951924 - Volvo Penta MD31B Diesel Engine Roll Pin - for Gear Selector
    951924
    Roll Pin - for Gear Selector
    Keypart Price
    £2.28 (inc VAT)
    £1.90 (ex VAT)
    List Price
    £3.72 (inc VAT)
    £3.10 (ex VAT)
    In Stock

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  • 22479650 - Volvo Penta MD31B Diesel Engine GL5 75W/90 Synthetic Gear Oil - 1 Litre - Genuine (Not available to customers outside the UK)
    22479650
    GL5 75W/90 Synthetic Gear Oil - 1 Litre - Genuine (Not available to customers outside the UK)
    Keypart Price
    £26.78 (inc VAT)
    £22.32 (ex VAT)
    List Price
    £29.76 (inc VAT)
    £24.80 (ex VAT)
    Low Stock

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  • 22479648 - Volvo Penta MD31B Diesel Engine GL5 75W/90 Synthetic Gear Oil - 5 Litre - Genuine (Not available to customers outside the UK)
    22479648
    GL5 75W/90 Synthetic Gear Oil - 5 Litre - Genuine (Not available to customers outside the UK)
    Keypart Price
    £124.20 (inc VAT)
    £103.50 (ex VAT)
    List Price
    £138.00 (inc VAT)
    £115.00 (ex VAT)
    In Stock

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  • 18-9680-2 - Volvo Penta MD31B Diesel Engine GL5 75W/90 Synthetic Gear Oil - 0.946 Litre - Sierra (Not available to customers outside the UK)
    18-9680-2
    GL5 75W/90 Synthetic Gear Oil - 0.946 Litre - Sierra (Not available to customers outside the UK)
    Keypart Price
    £20.33 (inc VAT)
    £16.94 (ex VAT)
    List Price
    £29.04 (inc VAT)
    £24.20 (ex VAT)
    In Stock

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  • 18-9680-5 - Volvo Penta MD31B Diesel Engine GL5 75W/90 Synthetic Gear Oil - 18.95 Litre - Sierra (Not available to customers outside the UK)
    18-9680-5
    GL5 75W/90 Synthetic Gear Oil - 18.95 Litre - Sierra (Not available to customers outside the UK)
    Keypart Price
    £312.00 (inc VAT)
    £260.00 (ex VAT)
    List Price
    £504.83 (inc VAT)
    £420.69 (ex VAT)
    Low Stock

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Zinc Shaft Clamp Anodes - Seawater Use

  • 800500ZN - Volvo Penta MD31B Diesel Engine 3/4" Zinc Shaft Anode
    800500ZN
    3/4" Zinc Shaft Anode
    Keypart Price
    £18.00 (inc VAT)
    £15.00 (ex VAT)
    List Price
    £21.60 (inc VAT)
    £18.00 (ex VAT)
    In Stock

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  • 800502ZN - Volvo Penta MD31B Diesel Engine 25mm Zinc Shaft Anode
    800502ZN
    25mm Zinc Shaft Anode
    Keypart Price
    £15.60 (inc VAT)
    £13.00 (ex VAT)
    List Price
    £22.80 (inc VAT)
    £19.00 (ex VAT)
    Low Stock

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  • 800503ZN - Volvo Penta MD31B Diesel Engine 1" Zinc Shaft Anode
    800503ZN
    1" Zinc Shaft Anode
    Keypart Price
    £14.40 (inc VAT)
    £12.00 (ex VAT)
    List Price
    £21.60 (inc VAT)
    £18.00 (ex VAT)
    In Stock

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  • 800506ZN - Volvo Penta MD31B Diesel Engine 30mm Zinc Shaft Anode
    800506ZN
    30mm Zinc Shaft Anode
    Keypart Price
    £15.60 (inc VAT)
    £13.00 (ex VAT)
    List Price
    £24.00 (inc VAT)
    £20.00 (ex VAT)
    In Stock

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  • 800507ZN - Volvo Penta MD31B Diesel Engine 1-1/4" Zinc Shaft Anode
    800507ZN
    1-1/4" Zinc Shaft Anode
    Keypart Price
    £15.60 (inc VAT)
    £13.00 (ex VAT)
    List Price
    £24.00 (inc VAT)
    £20.00 (ex VAT)
    In Stock

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  • 800509ZN - Volvo Penta MD31B Diesel Engine 35mm Zinc Shaft Anode
    800509ZN
    35mm Zinc Shaft Anode
    Keypart Price
    £18.00 (inc VAT)
    £15.00 (ex VAT)
    List Price
    £24.00 (inc VAT)
    £20.00 (ex VAT)
    In Stock

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  • 800510ZN - Volvo Penta MD31B Diesel Engine 1-1/2" Zinc Shaft Anode
    800510ZN
    1-1/2" Zinc Shaft Anode
    Keypart Price
    £18.00 (inc VAT)
    £15.00 (ex VAT)
    List Price
    £24.00 (inc VAT)
    £20.00 (ex VAT)
    In Stock

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  • 800511ZN - Volvo Penta MD31B Diesel Engine 40mm Zinc Shaft Anode
    800511ZN
    40mm Zinc Shaft Anode
    Keypart Price
    £30.00 (inc VAT)
    £25.00 (ex VAT)
    List Price
    £36.00 (inc VAT)
    £30.00 (ex VAT)
    In Stock

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  • 800512ZN - Volvo Penta MD31B Diesel Engine 45mm Zinc Shaft Anode
    800512ZN
    45mm Zinc Shaft Anode
    Keypart Price
    £30.00 (inc VAT)
    £25.00 (ex VAT)
    List Price
    £36.00 (inc VAT)
    £30.00 (ex VAT)
    In Stock

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  • 800513ZN - Volvo Penta MD31B Diesel Engine 50mm Zinc Shaft Anode
    800513ZN
    50mm Zinc Shaft Anode
    Keypart Price
    £36.00 (inc VAT)
    £30.00 (ex VAT)
    List Price
    £42.00 (inc VAT)
    £35.00 (ex VAT)
    In Stock

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  • 800514ZN - Volvo Penta MD31B Diesel Engine 2" Zinc Shaft Anode
    800514ZN
    2" Zinc Shaft Anode
    Keypart Price
    £36.00 (inc VAT)
    £30.00 (ex VAT)
    List Price
    £42.00 (inc VAT)
    £35.00 (ex VAT)
    In Stock

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Chemicals

Please note: It is NOT possible to ship most liquids by air. Aerosols can ONLY be purchased by customers in England, Scotland and Wales.

  • LOCTITE-243-10ML - Volvo Penta MD31B Diesel Engine Loctite Threadlock 10ml
    LOCTITE-243-10ML
    Loctite Threadlock 10ml
    Keypart Price
    £25.20 (inc VAT)
    £21.00 (ex VAT)
    List Price
    £31.20 (inc VAT)
    £26.00 (ex VAT)
    Please Contact for Stock Status

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  • LOCTITE-243-50ML - Volvo Penta MD31B Diesel Engine Loctite Threadlock 50ml
    LOCTITE-243-50ML
    Loctite Threadlock 50ml
    Keypart Price
    £60.00 (inc VAT)
    £50.00 (ex VAT)
    List Price
    £72.00 (inc VAT)
    £60.00 (ex VAT)
    Please Contact for Stock Status

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  • 828250 - Volvo Penta MD31B Diesel Engine 25G Tube Of Grease for Rubber Stuffing Box - Genuine
    828250
    25G Tube Of Grease for Rubber Stuffing Box - Genuine
    Keypart Price
    £4.97 (inc VAT)
    £4.14 (ex VAT)
    List Price
    £5.52 (inc VAT)
    £4.60 (ex VAT)
    In Stock

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Tools & Manuals

  • 3843947 - Volvo Penta MD31B Diesel Engine Impeller Removal Tool for Genuine 21951356 Impeller only
    3843947
    Impeller Removal Tool for Genuine 21951356 Impeller only
    Keypart Price
    £13.32 (inc VAT)
    £11.10 (ex VAT)
    Low Stock

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MD31B Diesel Engine