Description

When you’re staring at metal shavings in the oil and hearing that dreaded knock from deep in the engine, it’s time for a rebuild. The crankshaft journals get worn over time, and that’s where these oversize main bearings come in. Instead of replacing the expensive crankshaft, your machine shop can turn the journals down and you can install these .4mm oversize bearings to get things back to factory specs.

What You’re Getting

Precision-manufactured .4mm oversize bearing that matches factory clearances when used with a properly machined crankshaft
Individual bearing sold separately, so you only buy what you need for your specific rebuild
Quality construction that handles the stress and heat of diesel engine operation
Direct replacement for worn standard bearings when crankshaft is machined oversize

Built for Real Engine Work

This bearing fits a wide range of Kubota’s workhorse diesel engines – from the smaller D1403 in compact tractors to the bigger V2403 in mid-size equipment. These engines power everything from small utility tractors and skid steers to generators and industrial equipment that keep farms and job sites running.

Made to Last

Engine bearings take tremendous abuse from combustion pressure, heat cycles, and constant rotation. This bearing is built with the same materials and tolerances as the original factory part, so it’ll handle whatever work you throw at your equipment for years to come.

Good to Know

This is precision work that requires proper machining of the crankshaft journals to .4mm oversize before installation. Your machine shop will need to check all journal dimensions and bearing clearances during assembly. Always replace all main bearings as a set during an engine rebuild, even if only one appears worn.