Description

When you’re looking at metal shavings in the oil or hearing that telltale knock from under the hood, it’s time for more than just crossing your fingers. This comprehensive overhaul kit gives you everything needed to rebuild that trusted 381 cubic inch, 6-cylinder diesel engine and get your workhorse back to running like it should. Whether you’re tackling the job yourself or working with your local engine shop, this kit takes the guesswork out of what you need.

What You’re Getting

Complete set of sleeves with seals plus pistons and rings for a fresh cylinder rebuild
Standard and main bearings along with connecting rod bolts for reliable bottom-end durability
Full gasket set and crankshaft seals to eliminate leaks and keep fluids where they belong
Wrist pins with retainers and pin bushings for smooth piston operation
Everything engineered to work together for a professional-quality rebuild

Built for Real Farm Work

This kit’s designed specifically for the 4010 and 4020 series tractors that have been the backbone of American farms for decades. These machines spent their days pulling plows through tough ground, running balers in dusty fields, and hauling grain wagons during harvest. The 381 CID diesel in these tractors was built for the long haul, and with this overhaul kit, you’re giving it a fresh start to handle whatever work comes next.

Made to Last

Every component in this kit meets or exceeds original factory specifications. The pistons feature the same 3-ring design with keystone top compression rings that John Deere used, ensuring proper sealing and long life. The bearings and gaskets are built to handle the heat and pressure of hard farm work, season after season.

Good to Know

This is a major overhaul kit, which means you’ll need to pull the engine and completely disassemble it. Plan on having the crankshaft checked and possibly machined, and don’t forget to inspect the cylinder head while everything’s apart. The connecting rod bolts are included, but you’ll want to check your rod lengths to make sure you have the right bolt length for your specific engine.