Description

When that engine starts knocking or you’re hearing sounds that shouldn’t be there during a rebuild, worn main bearings are usually the culprit. This standard size main bearing kit gets your Allis Chalmers 4-cylinder gas engine back to factory specs, whether you’re rebuilding that 201 or 226 cubic inch powerplant that’s been working your farm for decades.

What You’re Getting

Complete standard size main bearing set with flanged thrust bearing included
Quality bearings engineered to handle the load and heat cycles of agricultural work
Proper clearances for reliable oil pressure and smooth operation
Everything needed for one complete engine rebuild – no hunting for missing pieces

Built for Real Farm Work

These 201 and 226 cubic inch 4-cylinder gas engines powered countless Allis Chalmers tractors through decades of field work, from cultivating and planting to harvest time. Whether your tractor’s been pulling implements, running a PTO, or handling loader work around the barn, these main bearings restore the reliable foundation your engine needs to keep running strong.

Made to Last

Farm engines work hard – constant load changes, dust, heat, and long hours that would kill lesser bearings. This bearing set uses quality materials and precision manufacturing to handle the punishment, giving you the durability and oil clearances that keep your engine running smoothly for years to come.

Installation Notes

This is a job for when the engine’s apart anyway – main bearing replacement requires pulling the crankshaft. Check your rod bearings while you’re in there, and always torque to spec with a calibrated wrench. A pro tip: check crankshaft straightness and journal condition before installing new bearings to avoid premature failure.