Description
When your John Deere diesel starts knocking or showing oil pressure issues, worn main bearings are often the culprit. These precision-engineered bearings are what keep your crankshaft riding smooth and your oil pressure steady. This undersized bearing set gives you a second chance at rebuilding an engine with a worn crankshaft—turning what could be an expensive block replacement into a manageable rebuild job.
What You’re Getting
- Complete set with one thrust bearing and four main bearings sized .010″ under standard for proper crankshaft clearance
- Precision manufacturing that meets the exact tolerances your engine needs for proper oil film and bearing life
- High-quality bearing material designed to handle the loads and temperatures of diesel operation
- TISCO quality construction that provides reliable performance at a price that makes sense for farm operations
Built for Real Farm Work
This bearing set fits multiple John Deere 4-cylinder diesel engines including the 202, 219, 239, and 276 CID powerplants. These engines powered a wide range of John Deere tractors and were known for their reliability when properly maintained. Whether you’re rebuilding the engine in a utility tractor that’s been hauling hay or a row-crop machine that’s seen thousands of hours in the field, these bearings provide the foundation for a solid rebuild.
Made to Last
Engine bearings take tremendous abuse from combustion pressures, heat cycles, and constant rotation. This set is manufactured to handle those demanding conditions with proper oil clearances and durable bearing material. The undersized design compensates for normal crankshaft wear, letting you reuse a crank that’s still within serviceable limits instead of having to replace or machine it further.
Good to Know
Having your crankshaft measured by a machine shop before ordering ensures you get the right undersize. Most rebuilds use .010″ under bearings, but severely worn cranks might need .020″ or .030″ bearings. Always check main bearing clearances with Plastigage during assembly—proper clearance is critical for oil pressure and bearing life. Keep everything clean during assembly, and use the torque specs from your service manual.
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