fits  84-99 Evo Big Twin; 86-90 XL Sportster; 87-90 Buell (NU)

This is the Powerglide with a failsafe solid bronze alloy bushing instead of a regular roller bearing. No other differences excist between the regular Powerglide and the Powerglide Steady Roll tappets. Full bearing contact provides more stability, longer life and quieter operation due to the tighter tolerances this bushing design allows. The major drawback of a worn needle bearing roller is they will eventually break, spilling steel needles throughout your engine. This is no longer an issue. Even when the Steady Roll bronze bushing wears out the design is failsafe. Like the other Jims Powerglide tappets this Steady Roll version will give you a superior hydraulic function when compared with OEM style equipment, a billet steel body with hand-honed hydraulic unitcavity and an oil fed axle. To get full power, you must have zero valve lash and eliminate collapsing of the hydraulic unit as is found in the OEM unit, also called ‘the shock absorber syndrome’. Failing to keep the valve open the full amount results in power loss. The Jims Powerglide tappets come as close to a solid tappet as possible, but are still able to compensate for heat expansion. They will even work well with solid style camshafts. Fits as an oversized replacement for 18523-86A. Note: Standard O.D. is .8425″

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Home > Parts > Engine > Lower End > Tappets > JIMS, Powerglide Steady Roll tappet. +.002″ O.D.

fits  84-99 Evo Big Twin; 86-90 XL Sportster; 87-90 Buell

This is the Powerglide with a failsafe solid bronze alloy bushing instead of a regular roller bearing. No other differences excist between the regular Powerglide and the Powerglide Steady Roll tappets. Full bearing contact provides more stability, longer life and quieter operation due to the tighter tolerances this bushing design allows. The major drawback of a worn needle bearing roller is they will eventually break, spilling steel needles throughout your engine. This is no longer an issue. Even when the Steady Roll bronze bushing wears out the design is failsafe. Like the other Jims Powerglide tappets this Steady Roll version will give you a superior hydraulic function when compared with OEM style equipment, a billet steel body with hand-honed hydraulic unitcavity and an oil fed axle. To get full power, you must have zero valve lash and eliminate collapsing of the hydraulic unit as is found in the OEM unit, also called ‘the shock absorber syndrome’. Failing to keep the valve open the full amount results in power loss. The Jims Powerglide tappets come as close to a solid tappet as possible, but are still able to compensate for heat expansion. They will even work well with solid style camshafts. Fits as an oversized replacement for 18523-86A. Note: Standard O.D. is .8425″

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Home > Parts > Engine > Lower End > Tappets > JIMS, Powerglide Steady Roll tappet. +.005″ O.D.

fits  99-17 (NU) Twin Cam; 17-25 M8; 00-22 (NU) XL Sportster; 08-12 (NU) XR1200; 00-10 (NU) Buell XB

Jims Powerglide tappets will give you a superior hydraulic function when compared with OEM style equipment, a billet steel body with hand-honed hydraulic unitcavity and an oil fed axle. To get full power, you must have zero valve lash and eliminate collapsing of the hydraulic unit as is found in the OEM unit, also called ‘the shock absorber syndrome’. Failing to keep the valve open the full amount results in power loss. The Jims Powerglide tappets come as close to a solid tappet as possible, but are still able to compensate for heat expansion. They will even work well with solid style camshafts. Fits as a improved oversized diameter replacement for OEM 18538-99C. Note: Standard is .8420″ O.D.

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Home > Parts > Engine > Lower End > Tappets > JIMS, Powerglide hydraulic tappet. +.001″ o.s.

fits  99-17 (NU) Twin Cam; 17-25 M8; 00-22 (NU) XL Sportster; 08-12 (NU) XR1200; 00-10 (NU) Buell XB

Jims Powerglide tappets wll give you a superior hydraulic function when compared with OEM style equipment, a billet steel body with hand-honed hydraulic unitcavity and an oil fed axle. To get full power, you must have zero valve lash and eliminate collapsing of the hydraulic unit as is found in the OEM unit, also called ‘the shock absorber syndrome’. Failing to keep the valve open the full amount results in power loss. The Jims Powerglide tappets come as close to a solid tappet as possible, but are still able to compensate for heat expansion. They will even work well with solid style camshafts. Fits as a improved oversized diameter replacement for OEM 18538-99C. Note: Standard is .8420″ O.D.

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Home > Parts > Engine > Lower End > Tappets > JIMS, Powerglide hydraulic tappet. +.0015″ o.s.

fits  99-17 (NU) Twin Cam; 17-25 M8; 00-22 (NU) XL Sportster; 08-12 (NU) XR1200; 00-10 (NU) Buell XB

Must be used with adjustable pushrods. Jims ‘Hydrosolid’ tappets have broken the limitations of all previous hydraulic tappet designs and is the best Jims tappet that is offered. This tappet works like a hydraulic tappet to about 5500 RPM, and then turns into a solid al the way up to where your rev. limiter takes control. At the time it turns into a solid the Jims Hydrosolid will add 3-6 horsepower. Even when the tappet rollers start lifting of the back of your cam you can be sure the Jims hydrosolid will never pump-up. Upgraded custom and oversized replacement for 18538-99C, but OEM pushrods must be replaced an adjustabale psuhrods installed. Note: Must be used with adjustable pushrods. Note: Standard OD is .8425″.

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Home > Parts > Engine > Lower End > Tappets > JIMS, Hydrosolid tappet. +.0010″

fits  99-17 (NU) Twin Cam; 17-25 M8; 00-22 (NU) XL Sportster; 08-12 (NU) XR1200; 00-10 (NU) Buell XB

Must be used with adjustable pushrods. Jims ‘Hydrosolid’ tappets have broken the limitations of all previous hydraulic tappet designs and is the best Jims tappet that is offered. This tappet works like a hydraulic tappet to about 5500 RPM, and then turns into a solid al the way up to where your rev. limiter takes control. At the time it turns into a solid the Jims Hydrosolid will add 3-6 horsepower. Even when the tappet rollers start lifting of the back of your cam you can be sure the Jims hydrosolid will never pump-up. Upgraded custom and oversized replacement for 18538-99C, but OEM pushrods must be replaced an adjustabale pushrods installed. Note: Must be used with adjustable pushrods. Note: Standard OD is .8425″.

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Home > Parts > Engine > Lower End > Tappets > JIMS, Hydrosolid tappet. +.0015″

fits  99-17 (NU) Twin Cam; 17-25 M8; 00-22 (NU) XL Sportster; 08-12 (NU) XR1200; 00-10 (NU) Buell XB

Jims Powerglide tappets will give you a superior hydraulic function when compared with OEM style equipment, a billet steel body with hand-honed hydraulic unitcavity and an oil fed axle. To get full power, you must have zero valve lash and eliminate collapsing of the hydraulic unit as is found in the OEM unit, also called ‘the shock absorber syndrome’. Failing to keep the valve open the full amount results in power loss. The Jims Powerglide tappets come as close to a solid tappet as possible, but are still able to compensate for heat expansion. They will even work well with solid style camshafts. Fits as a improved oversized diameter replacement for OEM 18538-99C. Note: Standard is .8420″ O.D.

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Home > Parts > Engine > Lower End > Tappets > JIMS, Powerglide hydraulic tappet. +.005″ o.s.