Jims Tappets

47 products — part of all Tappets

Jims tappets are precision-machined to the tolerances that professional Harley-Davidson engine builders expect from a brand that exists exclusively to make specialist Harley-Davidson V-twin components — and the range runs from 1953 to 1984 Big Twin including 1953 to 1965 Panhead and 1966 to 1984 Shovelhead separately, through 1984 to 1999 Evolution Big Twin and 1986 to 1990 XL Sportster and Buell, through 1991 to 1999 XL Sportster and Buell, through 1999 to 2017 Twin Cam and 2000 to 2022 XL Sportster and XR1200, up to 2017 to 2026 Milwaukee-Eight. Tappet tolerances directly affect valve timing, oil flow, and lifter noise — on a Jims-built Harley-Davidson valve train, these are engineered to spec rather than selected to fit a price point. Iron City Motorcycles, an authorised Harley-Davidson dealer in Leeds, stocks Jims through Iron Stable. Browse the full Jims Tappets range below.