CMC Bottom Transom Washer Plate Features Made from strong 38 6061 T6 Alloy Aluminum. Not cast Aluminum Transom washer can eliminate bolts biting into transoms and can more evenly distribute loads on high performance engines. Hole Centers 9-78 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Motor Mounts Wiser Yes Product MPN 20032 Product UPC 733572020032 Fast Ship In Stock Ships Today