Description

When your John Deere’s gas engine starts knocking or you feel that rumble that tells you something isn’t right down in the bottom end, it’s likely time for new main bearings. These are the bearings that support your crankshaft, and when they wear out, every revolution causes damage that gets worse by the hour. This .010″ oversize main bearing kit gets your engine back to smooth operation and protects your investment.

What You’re Getting

Complete main bearing set sized .010″ oversize to restore proper clearances
Includes flanged thrust bearing to control crankshaft end play
Off-center locating tabs on both bearing halves for proper positioning
TISCO quality construction that meets OEM specifications

Built for Real Farm Work

This bearing kit fits both the 201 cubic inch and 227 cubic inch 4-cylinder gas engines found in vintage John Deere tractors. These were reliable workhorses in their day, powering through field work when properly maintained. If you’re rebuilding one of these engines, you’re likely dealing with decades of wear that only proper main bearing replacement can fix.

Made to Last

Main bearings take tremendous loads and heat cycles, especially in engines that have been working farms for years. This TISCO kit uses quality bearing material and proper metallurgy to handle the stress. The flanged thrust bearing design keeps your crankshaft positioned correctly, preventing the end-to-end movement that can destroy engine cases.

Good to Know

Installing main bearings requires an engine teardown and crankshaft removal, so this isn’t a quick roadside fix. If you’re doing the work yourself, check your crankshaft journals with a micrometer before ordering—.010″ oversize bearings work with journals that have been turned .010″ undersize. Clean everything thoroughly since any dirt will destroy new bearings fast.