Kuryakyn Precision Cylinder Base Cover For Harley Touring Features The wrinkle black engine case at the base of the jugs is begging for some attention And the Precision Cylinder Base Cover delivers Form-fitted to hug the contours of the lower cylinders, while the sculpted design provides dimensional depth for a total transformation. If your ride is outfitted with our Precision Inner Primary Cover, this is a must-have addition Durable die-cast aluminum construction with premium chrome plating Easy bolt-on installation A must-have addition to the Precision Inner Primary Cover 911-976, sold separately Match with all Kuryakyn Precision covers for your Milwaukee-Eight engine for a total custom package