Engine
Active filters
Enhances the center of the oil cooler trim with a stylish guard. Easy to install and built in the USA.
Dresses up the oil cooler area with matching vent‑screen material; easy to install. 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.
Stellite-tipped nitrided valve for improved wear resistance, reduced friction, and corrosion protection. Made in the USA.
- Precision-machined bronze construction for durability
 - Tapered nose to reduce port obstruction and improve flow
 - Compatible with unleaded fuel and a range of valve‑stem materials
 - Accepts top‑hat valve seals (sold separately)
 - Made in the USA