Unique rear main seal option for all 1275cc Sprite engines. This kit is the ultimate rear seal solution that handles the rear seal in a totally new way. MED's kit uses a split seal and carrier that seals not the outer flywheel flange but the smaller diameter scroll seal area of the crank. This solution produces much less surface area for oil to escape from and because it's machined matched to the rear main cap, a much better seal. Because the rear main cap must be machined this kit is only meant for those rebuilding their engines but it is likely worth the extra machining cost. Download the .pdf for instructions.

This kit is for 1275cc engines only - it does not fit 1098cc 2" main engines.

For the entire kit plus main caps set, see part COM405.