Description
When you’re deep into an engine rebuild and the machine shop tells you the crankshaft journals are worn but still salvageable, you know you’re going to need oversize bearings. This 10 thousandths (.010) oversize main bearing set is exactly what you need to get that John Deere engine back to proper specs. These bearings are designed to fit machined crankshaft journals that have been turned 0.010 inch larger than standard to clean up wear and scoring.
What You’re Getting
- Precision-manufactured to .010 inch oversize for properly machined journals
- High-grade bearing material that handles the load and heat of hard-working diesel engines
- Proper oil clearances when installed on correctly machined crankshafts
- Complete set covers all main bearing positions for your engine rebuild
Built for Real Farm Work
These bearings fit several popular John Deere engines including the 4239T and 4239D found in many 40 and 50 series tractors, the 4039T in smaller utility models, and the 6359T and 6359D powerplants in larger row-crop machines. You’ll also find the 6068T in various applications. These are the engines that power the tractors doing everything from loader work to heavy field operations.
Made to Last
Engine bearings are one of those parts where quality absolutely matters. These are built to handle the continuous loads, heat cycling, and contamination that farm engines face. The bearing material provides the right balance of strength and conformability, while proper manufacturing ensures they’ll maintain oil clearances for years of reliable service.
Good to Know
Remember, oversize bearings only work with crankshafts that have been properly machined to the matching oversize. Have your crank measured and machined by a reputable shop – bearing clearances are critical for oil pressure and engine life. When you’re this deep into an engine, it’s also smart to check connecting rod bearings, oil pump clearances, and cylinder bore condition.
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