Engine

Active filters
ArmorX™-coated pistons with ArmorFit™ skirt coating for smooth, quiet operation. Includes pistons, rings, pins and circlips. Made in the U.S.A.
Smooths the transition from the cylinders to the engine cases for a clean finish. Easy installation with basic hand tools.
Forged pistons with ArmorGlide™ coated skirts, rings, retainer clips, and chrome piston pins. ArmorPlating on Twin Cam pistons improves ring seal and detonation resistance. Made in the USA.
Protects the oil sending unit sensor and connector; precision-machined for a snug, low-profile fit. Made in the USA.
Provides neat coverage for the oil sending unit sensor and connector. Made in the USA.
Replacement rings sold as a set for one piston. Verify piston compatibility before purchase.
Bolt covers extend 5/8" above the top surface; ensure adequate clearance. Simple, push-in installation.
Complete mounting kit with all required hardware for inner primary installation. Made in the USA.