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26 Products

26 Item(s)


This is a listing of items that have been fitted to Thornycroft 230 engines throughout production. We hope this page will help you; if you do not see what you are looking for, please contact us. We may be able to help.

The inclusion of items on this page does not infer that these items are genuine Thornycroft spares. Please check carefully the suitability of the item for your own application.

Gasket sets listed do not contain gaskets for marinisation components.

Requests for Thornycroft spares should always be accompanied by the engine number / build list.

The Thornycroft 230 is a 4 cylinder, 4 stroke, vertical, inline 3.77L diesel engine, based on the Leyland 4/98 Bathgate engine.

Most 230 engines were marinised in heat exchanger cooled configuration, and found an appreciative customer base among the river and inland waterways trip boats and larger pleasure craft. The engine was also produced as the 230R, using new marinisation on a factory reconditioned base engine, and painted bright metallic green.

Thornycroft never marinised the earlier BMC3.4 and BMC3.8 engines. Those were the forerunners to the Type 230. Many parts are interchangeable, but certainly not all.

The 230 engine has wet liners. The engine cooling circuit must be treated with a good quality inhibitor to ensure maximum liner life. Include inhibitor checks as part of your regular maintenance schedule.

From the MS-05-230 Thornycroft 230 leaflet, ratings are as follows:

1250RPM 36BHP 7.64LPH, 1500RPM 43BHP 8.91LPH, 2000RPM 56BHP 12.23LPH, 2400RPM 63BHP 14.78LPH.

Intermittent rating is shown as 74BHP.

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