Complete Engine Overhaul Kit for John Deere 4020 Tractors – 404 Cubic Inch 6-Cylinder Diesel

Description

When your trusty 4020 starts burning oil, rattling at idle, or just doesn’t pull like it used to, you know it’s time for more than a tune-up. This comprehensive overhaul kit gives you everything you need to bring that legendary 404 cubic inch diesel back to life – the same engine that’s been powering farms for decades because it’s built right and built to last.

What You’re Getting

• Complete cylinder sleeves and seals to restore proper compression and eliminate oil burning
• High-quality pistons with 3-ring design and keystone top compression rings for maximum sealing
• Full gasket set that seals everything from head to pan, preventing costly leaks
• All new valves, springs, guides, and retainers for proper breathing and timing
• Pin bushings and connecting rod bolts to handle the power this engine was designed to make

Built for Real Farm Work

The 4020 is one of those classic John Deere tractors that built America’s farms, handling everything from heavy field cultivation to loader work around the farmyard. Whether you’re powering a round baler during hay season or running equipment for livestock operations, these are the tractors doing the heavy lifting on farms everywhere. This kit restores the reliable power you need for all that hard work.

Made to Last

This is a complete rebuild kit – not a shortcut. The Tru-Power components are manufactured to meet the same demanding standards your 4020 came with from the factory. From the precision-machined sleeves to the high-quality gaskets, every part is designed to handle the stresses and heat cycles of serious farm work for years to come.

Good to Know

This is a major overhaul job that’s best tackled by someone with engine rebuild experience. You’ll need to source your own rod and main bearings separately since those are fitted to your specific crankshaft. Take your time during assembly – proper torque specs and cleanliness are critical for a rebuild that lasts. The detailed parts list shows exactly what’s included so there are no surprises when you tear into the job.