S&S CYCLE Hydraulic Tappets - Big Twin 33-5352

Rollers have a larger-than-stock inner bearing race that reduces stress and increases axle life Each lifter body and plunger assembly is hand-fit and pressure-tested to ensure correct operation Redesigned plunger assembly withstands forces associated with heavy-duty valve springs and pushrods typically used in high-performance applications Revised metering device precisely controls oil delivery to top end, ensuring rapid lifter pump-up and reducing possibility of oil starvation to bottom end Tappets that include the HL²T Limited Travel Kit improve cold starts and high rpm valve timing accuracy