MCS Transmission Top Cover Parts

50 products — part of all Transmission Top Cover Parts

MCS transmission top cover parts focus on the 4-speed era of Harley-Davidson engineering — late 1979 to 1986 Big Twin, late 1980 to 1986 Big Twin with variant top cover, late 1984 to 1990 XL Sportster 4-speed, the full 1936 to 1986 4-speed Big Twin and 1935 to 1973 45-inch Flathead and Servi-Car, and 1952 to early 1979 Big Twin. The 4-speed top cover carries the shifter mechanism, shift drum, and detent components that give a correctly set-up Harley-Davidson its shift quality — worn pawl springs and detent balls are the difference between a crisp shift and a transmission that hunts between gears. MCS's vintage coverage here is what keeps 4-speed Harley-Davidson gearboxes rebuildable with correct parts rather than improvised substitutes. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, carries MCS through Iron Stable. Browse the full MCS Transmission Top Cover Parts range below.