- High-flow 2.250" chrome moly gerotor gears for increased oil volume
- Precision-machined relief valve; bench tested to seat at 30 psi, pop-off 55–60 psi
- 42% more scavenge volume and 68% more oil to bearings versus stock
- Magnet protection and corrected passages to reduce wet sumping and blow-by
- Requires matching high-flow cam plate (part #0932-0192) for optimized scavenge
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Complete oil system upgrade for M8 that increases oil flow, scavenge volume and pressure; reduces engine and oil temperatures; includes pump, lifters, camplate and installation hardware.
Replacement spring and plunger assembly for oil pump pressure relief valve — increases pop‑off psi and restores proper bypass control. Bench‑test with PART #3801-0071.
Retainer rings that secure oil pump components for reliable lubrication and service.
Complete right crankcase roller bearing assembly. Includes rollers and retainer. Made in the U.S.A.
Made in the USA. Screw lock nuts with 9/32"-32 threads for secure valve adjustments.
0.060" thick locking washer made in the U.S.A. for dependable fastening.
Lock-style threaded fasteners that resist loosening and secure shaft connections.
Replacement flywheel thrust washers designed to meet or exceed OEM specification.
Complete gasket and bushing set for oil pump service. Made in the U.S.A.
Replacement countershaft bearing retainer washers.
Replacement OEM first gear thrust washers for reliable countershaft support and smooth shifting.
Durable piston pin clips for a wide range of Harley models. Meets or exceeds OEM specs. Made in the USA.