JIMS, Powerglide Steady Roll tappet. Standard .8420" O.D. - 99-17(NU)Twin Cam; 17-21 M8; 00-21 XL; 08-12(NU)XR1200; 00-10(NU)Buell XB 929687 3x 25586-37 cam gear cover

3x 25586-37 cam gear cover bushings

The standard since the invention of the piston engine

Light measures 38 mm (1-1/2") in diameter and is 64 mm long (2-1/2")

108") and 503769 (

- USA manufactured

JIMS, Powerglide Steady Roll tappet. Standard .8420" O.D. - 99-17(NU)Twin Cam; 17-21 M8; 00-21 XL; 08-12(NU)XR1200; 00-10(NU)Buell XB 929687 3x 25586-37 cam gear coverThis 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