Make your engine look new again. H-D®
Engine Brightener refreshes and rejuvenates tired wrinkle black finishes on engine cases, cylinder fins, covers, or anywhere else the color has faded or lost its luster.
Finish restorer cleans deep into the wrinkle black surface, and moisturizes the finish to return the original satin sheen
Just spray it on, let it soak in and wipe away for a fresh look