Mx5 / Kit Car K20 K Swap transmission kit

£1,095.95 £999.95



Our transmission kit is designed to allow a Honda K20 or K24 engine to mate to a standard Mazda Mx5 gearbox (5 or 6 speed) from 1989 to 2005. It has the advantage of allowing the engine to sit in an upright position which makes life easier for installing in both left and right hand drive vehicles and also Caterham style kit cars.

It consists of the following items-

Forged Chrome Moly steel flywheel.

This CNC machined flywheel is dynamically balanced to 10,000 rpm and incorporates a machined ring gear for safety at high engine speeds. This flywheel is also notably lighter than the OEM part for increased engine response throughout the rev range and also comes with a sealed pilot bearing.

Adaptor plate.

The adaptor plate is made from 13 mm thick steel plate and allows the fitment of the Honda K20 or K24 engine to a Mazda Mx5 gearbox from 1989 to 2005. It comes with the appropriate high tensile bolts to attach it to the engine and gearbox. (Adaptor plate is supplied without paint or surface coating).

This kit will require the trimming of a section of the gearbox bell housing to be able to fit the starter motor. Please see photos.

The kit is designed to use an uprated Mx5, 1.8L clutch such as the Skuzzle clutch which is available on our website.

A video of this kit in action can be found on YouTube by following this link.

We aim to keep these kits on the shelf but please email us to check stock levels and lead times before placing your order.

For sales outside of the UK, please email us first so we can confirm shipping prices.