Engine

Precision-machined billet cap with improved heat transmission and performance styling.
Strong, lightweight billet aluminum point cover with CNC precision and improved heat transfer.
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.
Stepless® ear clamps deliver a 360° gap-free seal with a narrow 5 mm band. Specially formed edges reduce damage and tampering is visible. Lightweight design. Side jaw clamp tool sold separately.
Stepless® ear clamps designed for fuel systems. 360° stepless inner surface, narrow 5 mm band for concentrated seal compression, tamper-evident. Tool sold separately.
Designed for HD® Evolution OEM replacement. Machined from high‑grade metal with a corrosion‑resistant dark finish. Multipurpose alignment pins. Made in the USA.
PTFE valve guide seals with twin-spring tension for reduced friction and reliable valve control. Made in 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
Precision-machined valve guide accepts special seals and works with no-lead fuel; made in the U.S.A.