Sierra 18-2733 Mercruiser Water Shutter Sierra high-quality engine parts are designed to meet OEM specifications. Length 3.175 Width 2.5 Interchangeable with GLM 89160 Mallory 9-42801 Mercruiser Stern Drive 99370A2 92802 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Engine Parts Wiser Yes Product MPN 18-2733 Product UPC 808282124670 Fast Ship In Stock Ships Today