SIL chaincase cover, to be used for all Series 1-3 engines. However, some exceptions have to be made:
- The GP models have a revised clutch which makes it necessary to switch to a matching pressure plate and install the corresponding mechanism in the cover.
- With older engines that use M6 engine cover studs only, the two M8 holes in the cover don’t look too great. Technically, this fact does not pose a problem, though.