JIMS, Hydrosolid tappet. Standard .8425" O.D. - 84-99 Evo Big Twin, 86-90 Sportster; 87-90 Buell (NU) 904413 This issue and every issue

This issue and every issue that follows

OEM replacement reference 67737-88T

Direct replacement for large cork OEM 17955-48 lower pushrod seal

Seat pressure 95 lbs

80-17 FLT/Touring

JIMS, Hydrosolid tappet. Standard .8425" O.D. - 84-99 Evo Big Twin, 86-90 Sportster; 87-90 Buell (NU) 904413 This issue and every issueMust 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