Category Mercury MerCruiserMerCruiser - Exhaust System Back O-Ring Seal Kit 25-87400A2 Mercury MerCruiser Sterndrive Parts & Accessories Viewer:1583 Item No: 25-87400A2 Similar fits No: Sierra - 18-2649 GLM - 87400 Fits: R, MR, Alpha One, Gen II & Bravo You May Also Be Interested In O-Ring Seal Kit 25-87400A2 Shutter 60930 Complete Gasket Kit For VG-2136-M Choke Cable SM-05061 Watch Our Product Videos