2001-Later GMT800, 2500HD, 3500 with 6.6 liter Duramax diesel engine The crankshaft front seal is fitted to both the engine block and crankshaft. Troubleshooting Honeywell Truesteam Humidifier. Fit of the inner and outer seal bodies is critical and any misalignment can result in leakage. J-44645 is designed to install the seal to correct depth and alignment. Place the seal onto the end of the crankshaft. Screw J-44645 into the end of the crankshaft. Turn the forcing screw so the body of the tool can push on seal until it bottoms in the block. Expedited shipping Available..

Duramax Front Main Crank Seal Driver front engine seal. Machined from 6061 aluminum, our in house designed front main seal installer is ready for years of service. Engineered to allow installation of the seal at the correct depth every time. Can be used with our Driver Handles or by itself with just a hammer. Fits all year.

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