Active filters
Compact automatic thermal switch. Normally open; activates 12V accessories at preset temperature. NPT 1/8" probe, easy wire connections, made in USA.
Complete gasket kit for cam changes. Includes gaskets, seals, O-rings and cork washers. Made in the USA.
High-quality replacement gasket for derby cover; fuel-resistant materials for long-term reliability.
High-quality cylinder head gasket engineered for long-term reliability. Fuel-resistant composite construction with multi-layer support. Made in the USA.
Reduces oil temperatures using engine temperature and vehicle speed. Quick 15-minute install; no oil cooler removal. Plug-n-play on M8 models with compatible ECM. Made in the USA.
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.
Full gasket set for '91–'03 XL 1200; includes head, base, valve stem seals, exhaust and cover gaskets. Made in the USA.
Complete gasket kit with multilayer (MLS) head gaskets, coated base gaskets, race-style exhaust gaskets and blue valve stem seals. Fits '99–'06 Big Twin where applicable.
High-efficiency vertical, frame-mounted oil cooler kit with automatic fan; ideal for low-speed and highway use. Includes fan, hose, hardware, thermal switch wiring harness, and filter adapter. Made in the USA.
Complete EST top end gasket kit with embossed stainless steel gaskets and proprietary rubber covering. Includes all seals and O-rings. Made in the USA.