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- 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
Precision-machined oil system packs for M8 engines that increase oil flow, scavenge volume and pressure while reducing temperatures and wet sumping. Includes pump, lifters, high-flow camplate and installation kit.
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.
Compact crankcase vent filter for reliable ventilation and easy installation.
Precision J-form cylinder stud kit with eight studs, moly assembly lubricant, and thread sealant. Stock replacement and reusable; manufactured by ARP® in the USA.
One-piece nitrided stainless-steel valve with stellite tip for superior wear resistance and reduced friction. Made in the USA.
One-piece Stellite-tipped nitrided valve delivering superior wear resistance, reduced friction, and optimized flow. Made in the USA.
Nitrided valve with stellite tip for reduced wear and friction; compatible with leaded and unleaded fuels. Made in USA.
Stellite-tipped nitrided stainless-steel valve offering superior wear resistance, lightweight profile, excellent flow, and fuel compatibility.
One-piece nitrided stainless-steel valve with stellite tip for reduced wear and improved flow.
Compatible with leaded and unleaded fuels; made in the USA.
One-piece nitrided valve with stellite tip for improved wear resistance and reduced friction.
Lightweight profile, corrosion resistant, compatible with leaded and unleaded fuels.
Precision-machined valve guide compatible with no-lead fuel and multiple valve-stem materials. Made in the USA.
OEM replacement dowels for HD® Evolution engines that ensure precise cylinder alignment and reliable fitment.