Description
When your Case tractor starts knocking at the bottom end or oil pressure starts dropping, you’re looking at worn main bearings—the heart of your engine’s rotating assembly. This main bearing kit gives you everything you need to rebuild that crankshaft properly, getting your diesel engine back to smooth, quiet operation with the oil pressure it should have.
What You’re Getting
- Complete bearing set for all main journals on 6-cylinder diesel engines
- Standard size bearings for engines that haven’t been machined undersize
- Precision-manufactured to OEM specifications for proper clearances
- High-quality construction that handles the loads these diesels put out
Built for Real Farm Work
This kit works on the A401D, 451D, and A451BD engines that powered a lot of Case tractors back in the day. These were solid, reliable 6-cylinder diesels that handled everything from field work to heavy pulling, and when maintained properly, they’d run for thousands of hours.
Made to Last
These bearings are built to handle the continuous loads and vibration that come with agricultural work. The materials and tolerances are designed to provide proper oil clearance while standing up to the demands of diesel operation under varying loads and conditions.
Good to Know
This is a job for someone with engine rebuilding experience—main bearing replacement requires pulling the crankshaft and checking all clearances with a micrometer. Note that thrust washers aren’t included in this kit, so you’ll need to order those separately if yours need replacing. Make sure to check your crankshaft journals for wear before installation.
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