MCS Primary Cover Inner

11 products — part of all Primary Cover Inner

MCS inner primary covers give Harley-Davidson owners direct-fit replacement and upgraded inner primary housings that enclose the primary chain or belt drive and serve as the structural base for the primary chaincase assembly. The inner primary is a critical structural and sealing component — it locates the transmission in relation to the engine output sprocket, carries the clutch release mechanism and forms the inner wall of the primary chaincase oil bath that lubricates the chain and clutch. MCS supply inner primary covers to the dimensional specifications of Harley-Davidson Big Twin and Sportster primary drive configurations, with options covering four-speed and five-speed gearbox-era primary designs. A cracked or poorly sealed inner primary causes primary oil leaks that stain the frame and ground while gradually depleting the lubricant from the clutch and primary chain. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, carries MCS inner primary covers alongside a full clutch, primary and drivetrain components range. Browse the full MCS Primary Cover Inner range below.