Description
When you’re dealing with engine knock, low oil pressure, or metal in the oil, it’s usually time for new main bearings. This complete bearing set gives you everything needed to rebuild the bottom end of your John Deere’s 4-cylinder diesel engine. With proper installation, you’ll get back the smooth operation and oil pressure that keeps your tractor running strong for years to come.
What You’re Getting
- Complete main bearing set with flanged thrust bearings included – no hunting for separate parts
- Precision .010 oversize bearings compensate for crankshaft wear from years of hard work
- Off-center locating tabs on upper halves and centered tabs on lower halves ensure proper installation
- OEM-quality construction handles the stress of agricultural applications without premature failure
- Direct replacement for multiple John Deere part numbers – one kit covers your needs
Built for Real Farm Work
This bearing set fits John Deere tractors with 254 CID and 270 CID 4-cylinder diesel engines, covering models like the 2140, 2650, 2750, 2850, 3040, 3140, and many others in the utility and row-crop lineup. These are the tractors handling daily loader work, field cultivation, hay operations, and everything else that keeps a farm running. When main bearings start showing wear, you need quality replacements that can handle another decade of hard use.
Made to Last
Farm engines face conditions most engines never see – constant load changes, temperature extremes, and long hours under stress. These bearings use materials and tolerances designed specifically for agricultural diesel engines. The flanged thrust bearings control crankshaft end play while the main bearings provide the oil film needed for smooth operation under heavy loads.
Good to Know
This is a .010 oversize bearing set, which means your crankshaft will need to be machined .010 undersize on the main journals. Check with your machine shop about crank work before ordering. The locating tab design prevents mix-ups during assembly – upper and lower halves install differently, so pay attention to the tab positions during installation.
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