Description
When that knock starts echoing from deep in your three-cylinder and the oil pressure starts dropping, you know it’s time for new rod bearings. This .010 oversized bearing set is designed for Perkins AD3-152 engines that have had their connecting rod journals machined to clean up wear and restore proper oil clearances. It’s the kind of rebuild part that gets your reliable workhorse running smooth and quiet again.
What You’re Getting
- Complete bearing set for all three connecting rods in one kit—no hunting for individual pieces
- .010 inch oversize to fit properly machined crankshaft journals
- Precision-manufactured bearings that meet OEM specifications for fit and durability
- Quality materials that handle the heat and pressure of hard-working diesel engines
- Direct replacement for worn bearings during crankshaft rebuild or overhaul
Built for Real Farm Work
The Perkins AD3-152 three-cylinder engine powers legendary tractors like the Massey Ferguson 135, 148, and other 100-series models that have been farm favorites for decades. Whether you’re running a loader, mowing pastures, or pulling implements, this 45-horsepower workhorse needs proper bearing clearances to deliver full power. This engine also found its way into industrial applications where reliability matters most.
Made to Last
Rod bearings are the hardest-working parts in any diesel engine, supporting tremendous loads while allowing smooth crankshaft rotation. These bearings are manufactured to handle the constant stress of connecting rod forces, oil contamination, and temperature cycling that comes with real farm use. The precision tolerances ensure proper oil film thickness for long service life.
Good to Know
Installing oversized bearings requires a properly machined crankshaft—this isn’t a job for worn journals. Have your crank checked and machined by a qualified machine shop before assembly. Always use proper torque specifications and assembly lube during installation. Check oil clearances with Plastigage to verify proper fit before final assembly.
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