Engine
Active filters
Durable radiator guard with mounting bracket for easy installation. Protects against rocks and road debris. Made in the USA.
Transparent cam cover that matches Assault series air cleaners and allows internal inspection. Made in the USA.
Transparent cover for viewing internal engine components. Matches the Assault series air cleaners. Made in the USA.
Transparent cover for viewing internal engine components; matches Assault series air cleaners. Made in the USA.
State-of-the-art compression release valves that reduce hot starts and lower starter and battery loads. Sold as a set and made in the U.S.A.
State-of-the-art design to reduce hot starts and starter/battery loads. Custom molded knobs, sold in pairs, made in the U.S.A.
Made to exact tolerances; does not include oil holes; made in USA.
Strong, hose-safe clamping with easy ear-clip removal and snag-free installation. Made in the USA.
Strong hose clamps with positive grip, easy ear-clipping removal, and a snag-free design.
- Made to exact tolerances for OE-style fit and wear.
- Made in the USA.
- Does not include oil hole(s); must be drilled after installation.
360° Stepless® ear clamps with a 5 mm band for concentrated seal compression. Tampering visible; lightweight design. Side jaw clamp pincher tool sold separately.
360° Stepless® ear clamps with narrow 5 mm band, tamper-evident, lightweight, and reduced edge damage risk.
Stellite-tipped stainless-steel valve nitrided for improved wear resistance, corrosion protection, and reduced friction.
Designed for HD® Evolution OEM replacement. Machined from high‑grade metal with a corrosion‑resistant dark finish. Multipurpose alignment pins. Made in the USA.
High-density powdered metal valve seats for superior wear resistance and thermal stability. Tested for track and street use.