Crankcases

Almost all Harley-Davidson engines that vent the crankcase through the cylinder heads also expel oil through the same passages. Venting directly into the air cleaner, especially a free-flowing air cleaner, often results in an oily mess on the side of...

Durable die-cast aluminum construction with premium chrome plating Easy to grip for hassle-free opening and tightening Styled to coordinate with the entire Precision line of engine covers for the Milwaukee-Eight Compatible...

Durable die-cast aluminum construction with premium chrome plating Easy to grip for hassle-free opening and tightening Styled to coordinate with the entire Precision line of engine covers for the Milwaukee-Eight Compatible...

Replacement rubber boots for Evolution Crankcase Breather Kit

Stock deck height Large volume sump Machined, close-fitting oil scraper (stock is as cast) A solid foundation for building a big-bore engine Made in the USA NOTES: Includes Manufacturers Statement of Origin (MSO) document. Can be paired with a...