Description

When your engine’s knocking or rattling during startup, or you’re seeing metal shavings in the oil pan, it’s usually time to address worn main bearings. A proper engine rebuild requires precision-fitted bearings, and this .030″ undersized main bearing set gives you exactly what you need when your crankshaft journals have been turned down to restore a smooth surface.

What You’re Getting

Complete main bearing kit sized .030″ under standard for machined crankshafts
Includes both standard main bearings and flanged thrust bearing for proper end play control
Quality construction that meets the demands of hard-working diesel engines
Direct replacement for original bearings – no guesswork on sizing or fitment

Built for Real Farm Work

This bearing set fits John Deere’s reliable 3-cylinder diesel engines found in compact and utility tractors – the 152, 164, and 179 cubic inch powerplants that have been workhorses on farms for decades. These engines power everything from loader work to brush hogging, and they need bearings that can handle the constant load changes that come with farm tasks.

Made to Last

Engine bearings take tremendous abuse from combustion pressure, heat cycling, and the constant rotation of heavy crankshafts. This set is built to handle those stresses with proper oil clearances and materials that resist wear even under heavy loads and long operating hours.

Installation Notes

This is a .030″ undersized bearing set, which means your crankshaft needs to be machined to the proper undersize dimensions first. Always check your clearances with Plastigage before final assembly, and make sure you’ve got the oil pump primed and the system filled before that first startup. Take your time with torque specs – proper main cap torque is critical for bearing life.