Engine Small Parts

Precision Matters Inside a Harley Engine

Harley engine small parts decide whether a strong build stays reliable or turns problematic later. Items like Harley O-rings and washers, engine dowel pins Harley, and motorcycle gaskets and seals control oil flow, alignment, and pressure balance. During rebuilds, these motorcycle internal engine small parts quietly handle stress that larger components never see. Ignoring them often causes oiling issues, misalignment, or premature wear across V-Twin engine components. That’s why builders focus on proven solutions provided by TMF Cycles instead of generic engine hardware parts and motorcycle kits.

The Jims Piston Oiling Jet Kit shows how targeted design improves longevity. It is modified to support upgraded stroker flywheel stroke while remaining compatible with stock and high-performance flywheel assemblies. Made in the U.S.A., it directly supports piston cooling, an area often overlooked during performance builds. The Feuling Cam Shim Kit addresses camshaft sprocket spacing and thrust control on Twin Cam engines from 2007–2017, including 2006 Dyna. Its alignment washers ensure correct rear camshaft sprocket alignment, which protects chains and tensioners during hydraulic conversion upgrades. Meanwhile, the Feuling Sump Plug solves a common oil scavenging issue in Twin Cam and Milwaukee-Eight engines. Its shorter 0.265-inch height prevents blocking the internal scavenge pickup port, improving oil return and lowering sump levels. Together, these products highlight why Harley engine bolts and hardware, oil pump O-rings, rocker box hardware, pushrod clips and retainers, and valve stem seals motorcycle deserve the same attention as major parts within motorcycle engine small parts planning and broader V-Twin engine fasteners selection.

FAQs

Why do small engine parts affect reliability so much?

They control oil flow, alignment, and sealing. Failures here impact the entire engine.

Are these parts only for performance engines?

No. Stock and upgraded engines both rely on correct Harley engine small parts fitment.

What problem does a short sump plug solve?

It prevents blocking the scavenge port, improving oil return and reducing sumping.

When should these parts be replaced?

During rebuilds, cam upgrades, or any teardown involving motorcycle gaskets and seals.