590157 XL shifter cam follower. aluminum

This MCS aluminum shifter cam follower is a direct replacement for Harley-Davidson OEM part 34063-84B, fitting 1984–1990 4-speed XL Sportster models. Cast from lightweight aluminum with a raw machined finish, this detent follower features cylindrical pivot bosses at each end and a curved central body that rides against the shifter cam plate. Unlike steel followers that can accelerate wear on the cam plate, this aluminum version offers the correct hardness to protect your transmission top cover components. The visible casting marks and machined bearing surfaces ensure proper alignment and smooth shifting action. Essential for maintaining crisp gear selection in your four-speed Sportster gearbox.