Works on 1993-newer Cadillac 4.6L V8 Northstar engine, and 1995-1999 Oldsmobile Aurora 4.0L V8.1/2" sq. drive for use with 1/2" drive breaker bar or ratchet.Tool is designed to self-center in the water pump housing, allowing the tangs to fully engage the water pump for removal or installation.
OTC 6060A GM Water Pump Socket
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