MerCruiser 25-45710 25-45711 O-Ring Set Reverse Lock Valve 48165A5 76812A4
Part Number(s) Included MerCruiser 25-45710 O-Ring (The Larger One) MerCruiser 25-45711 O-Ring (The Smaller One) General Application / Compatibility For MerCruiser Systems using both Prestolite Trim Pumps (Square Reservoir) with a reverse lock system which is the standard configuration found on most MerCruiser applications 1970-1982 Found on both the Reverse lock assemblies that have inter-lock switches as well as those that did not Other Details NEW Aftermarket O-Ring Set Purchase with confidence! GM 120hp 4cyl 2.5L 153cid GM 140hp 4cyl 3.0L 181cid GM 165hp 6cyl 4.1L 250cid MerCruiser "470" 170hp 3.7L 4cyl 224cid (2bbl) Ford 302 351 5.0L 5.8L 888 188hp 215hp 225hp 233hp 255hp V8 GM 305 350 5.0L 5.7L V8 198hp 200hp 228hp 230hp 260hp