Engine
Active filters
Precision cam shims for accurate valve adjustment. Made in the U.S.A.
Covers the gap between the transmission top cover and the engine cylinder for a finished look. Installs quickly and easily. Durable polished finish.
Direct-fit oil cooler cover that installs like the stock factory cover for a quick bolt-on upgrade.
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.
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.
Directs air through a side scoop to cool cylinder heads; includes a high-powered waterproof fan, temperature switch (activates at 140°F), manual override, wiring and hardware. Plug-and-play installation with no drilling. Not for "Twin Cooled" models.
Direct-fit piston pin clips for many Harley models. Made in the USA and built to OEM-equivalent standards.
Designed for twin plug heads. Accepts .650"/10mm x 1.0 compression release valves. Sold each.