Description
Isuzu Duramax Diesel J-44642 Rear Crankshaft Seal and Wear Sleeve Installer Alt. (ST-125)
Applications: ISUZU 6.6L Duramax Diesel
Works on seals including 97209342
This tool is crafted from heavy-duty steel, ensuring durability and longevity far superior to aluminum alternatives. Tillman Products are renowned for being among the most robust on the market, and this high-quality tool is no exception. It is essential to prevent rear seal leaks, offer you peace of mind, and protect your engine from damage.
Compatibility: 2001 and later GMT800, 2500HD, 3500 models with a 6.6-liter Duramax diesel engine.
The rear seal is press-fitted to the engine block and crankshaft, making precise alignment of the inner and outer seal bodies crucial to prevent leakage. The ST-125 is a two-piece tool designed to mount onto the crankshaft and apply force to the inner and outer seal bodies. To use, place the new seal on the inner body of the ST-125, attach the tool to the end of the crankshaft assembly, and turn the forcing screw to press the seal until it bottoms out in the block.
Even the tool’s ball bearings are made in the USA.






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