Performance Machine Scallop engine covers in billet aluminum replace stock Harley covers with machined scallop detailing and the iconic PM logo. Available as a complete set covering rocker boxes, cam, clutch, ignition, derby, inspection, and transmission—each piece individually styled for a cohesive custom appearance. Features Billet aluminum construction Machined scallop detail design Complete cover set: rocker box, cam, clutch, ignition, derby, inspection, transmission Ships with OE gaskets and mounting hardware Performance Machine logo detail Specifications Brand: Performance Machine Manufacturer Part #: 0177-2021-BM Weight: 4.3 lb Category: Engine Components / Engine Covers WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov Fitment Fits Harley-Davidson models. OE cover replacement—ships with hardware and gaskets. Frequently Asked Questions Does this set include all engine covers? Yes — rocker boxes, cam, clutch, ignition, derby, inspection, and transmission covers are all included. What's in the box? All billet aluminum scallop covers plus OE gaskets and mounting hardware needed for installation. Will these fit my specific Harley model? These are OE-replacement covers for Harley-Davidson engines. Verify your engine type and year for exact fitment compatibility. Do I need a gasket set separately? No — all necessary gaskets are included with the cover set. California Proposition 65 Warning WARNING: Cancer and Reproductive Harm — California Prop 65 (Y). www.P65Warnings.ca.gov