Sierra 18-2599 Mercruiser Alpha 1 Gen II Face Seal Tool Sierra high-quality engine parts are designed to meet OEM specifications. Fits Mercruiser Stern Drives and Mercury Marine engines. Fits Alpha One Gen II drives Interchangeable with GLM 85590 Mallory 9-43628 Mercruiser Stern Drive 26-816575A2 Mercury Marine 26-816575A2 California Residents WARNING Cancer and Reproductive Harm - P65Warnings.ca.gov Other Details Google Product Type Engine Parts Product MPN 18-2599 Product UPC 030999875105 Fas