COMP Cams · New
Comp Cams Lifter,Sb/Lt/Ls Oe-Type Hyd Rl R Full Trv
MPN 850-4 · Store SKU cca850-4
Supplier stock checked 11/8/2026, 2:58:27 AM UTC. Adding a part does not reserve it.
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Product details
Performance Hydraulic Roller Lifters: VThunder by COMP Cams, the leader in valve train technology, introduces their new replacement Evolution? Big Twin hydraulic roller lifter to its line of V-Twin aftermarket products. Our new lifter features a rigid nodular cast iron body with a 52100 bearing, axle and wheel assembly for strength. VThunder?s lifter utilizes an advanced ultra-high flow metering system which allows more oil movement through the engine to aid in cooling. Each lifter is precision I.D. Ground and matched with a Graded piston, and features a high performance retaining ring. This hydraulic roller lifter replaces lifters in 1999 - Present Twin Cam and Buell along with 2000 - Present Sportster. COMP Hydraulic Roller Lifter Set
Manufacturer fitment & guides
Check 850-4 against the manufacturer’s application information below.
Part-specific notes
- California Proposition 65: Y