Shopping Basket
0 Items

Christmas Opening Hours

KEYPART will close at midday on Friday 21st December 2018 and reopen on Wednesday 2nd January 2019 at 8.30am.
We would like to wish everyone a Happy Christmas and a prosperous New Year!
Note: Any orders placed online during this time will be despatched on 2nd January 2019 (Subject to stock availability).

Welcome to Keypart.

Keypart supply parts for many different marine engines. Whether you own a sailing boat or power boat, we are here to help you enjoy the long, hot summer having fun on the water!


Welcome to Keypart.

Keypart is open from 8.30am to 5.00pm Monday to Friday. We are NOT open at weekends. Should you wish to collect any parts, please note: We supply marine engine spares as “mail order specialists”. Consequently, we do not have a sales showroom or shop here at Kings Langley. Should you wish to collect any parts, please contact us first (Tel. 01923 276000 or this will enable us to check our stock prior to your arrival and avoid any wasted journey or additional waiting time.

Welcome to Keypart.

Keypart are the biggest independent suppliers of marine pleasure engine parts and accessories in the U.K. We specialise in Volvo Penta, Mercruiser, OMC and many others. Unlike other suppliers, we can usually offer ALL parts required as a “one stop shop”.


KEYPART was founded by three former employees of Volvo Penta UK and has been trading successfully since 1988. In 2007, the company moved to a new purpose built, distribution warehouse. This location is close to London and only 20 minutes away from Heathrow airport, giving us greater capability to ship globally.


Keypart use many of the recognised carriers for parts distribution. Companies like UPS collect parcels from us every day for delivery to customers all over the world.

  • Why shop with us
  • International Delivery
  • Industry Leading Experience
  • Fully Stocked Warehouses
  • Distribution Network

Featured Products

  • Starter - Replacement - Offset Bolt Pattern GM applications
    List Price
    £281.00 Ex VAT
    £337.20 Inc VAT
    Keypart Price
    £120.00 Ex VAT
    £144.00 Inc VAT
  • SEPAR 30-micron Filter Element
    Keypart Price
    £18.85 Ex VAT
    £22.62 Inc VAT
  • Battery Master Switch - Sierra Marine Works 12v/100a
    List Price
    £21.00 Ex VAT
    £25.20 Inc VAT
    Keypart Price
    £15.75 Ex VAT
    £18.90 Inc VAT

Marine engine parts, boat engine parts


KEYPART are the U.K.’s largest independent suppliers of marine engine parts and accessories. We offer an unrivalled boat engine parts service for Volvo Penta, Mercruiser and OMC together with many other marine engine parts and types, including popular outboards. We have over 100 years of combined experience in identifying and supplying marine engine parts and accessories.

Additionally, we are able to supply any part for Evinrude, Johnson, Mercury and Mariner engines and have a vast stock of Sierra Marine parts for many other outboards and other engine parts.

We have worked hard to establish KEYPART as the best independent marine and boat engine parts supplier in the U.K. and are anticipating offering a similar level of service for Europe and the rest of the world. Should you have any suggestions as to how we can improve our website or service, please contact us.

Marine engine parts, boat engine parts - Keypart