Hydraulic Tappets for Harley-Davidson Evolution Hydraulic Roller Tappets

Kit of 4 hydraulic tappets for Harley-Davidson Evolution Big Twin from 1984 to 1999 and Sportster from 1986 to 1990

S&S Hydraulic Tappets Kit

• 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 with stands 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
• Sold in sets of four
• Fit 1984-1999 Evolution Big Twin and 1986-1990 XL models