Description

When your Allis Chalmers engine starts knocking or you notice metal shavings in the oil, those connecting rod bearings are telling you they’ve had enough. Engine rebuilds can be intimidating, but this rod bearing kit gets you the precision-machined bearings you need to bring that four-cylinder gas engine back to life. At .020″ undersize, these bearings are made for crankshafts that have been ground to remove wear and damage.

What You’re Getting

Complete set of rod bearings sized .020″ under standard for rebuilt crankshafts
TISCO quality construction that meets OEM specifications for fit and durability
Precision tolerances that ensure proper oil clearance and long engine life
Everything needed for one complete engine – no hunting around for individual bearings

Built for Real Farm Work

This kit fits the 138 and 149 cubic inch four-cylinder gas engines found in various Allis Chalmers tractors and equipment. These were workhorse engines that powered everything from utility tractors to combines, built to handle long hours in tough conditions. Whether you’re restoring a vintage machine or keeping an old reliable running, these bearings are engineered to take the punishment.

Made to Last

TISCO builds these bearings to handle the heat, pressure, and vibration that come with agricultural work. The materials and construction match original specifications, so you get the same reliability the factory intended. Proper oil clearances mean smooth operation and protection against premature wear.

Good to Know

These are .020″ undersize bearings, which means your crankshaft needs to be ground to match. Make sure you’ve got the machine work done before installation, and always check your clearances with Plastigage. Take your time during assembly – clean everything thoroughly and torque the rod bolts to spec. A little extra attention now saves you from tearing it apart again later.