Description
When you’re facing a major engine rebuild on one of these classic John Deere workhorses, you need everything to go together right the first time. This comprehensive overhaul kit takes the guesswork out of sourcing all the internal components for your 404 cubic inch, 6-cylinder turbocharged diesel engine. Instead of hunting down individual parts and hoping they all match up, you get everything needed for a complete rebuild in one box.
What You’re Getting
- Complete cylinder sleeves and sleeve seals for proper bore dimensions and sealing
- Three-ring pistons with keystone top compression rings designed for late head applications
- Piston pins, retainers, and pin bushings for secure piston-to-rod connections
- Standard size rod and main bearings plus connecting rod bolts for reliable bottom end rebuilds
- Complete gasket set and crankshaft seals to keep everything sealed up tight
Built for Real Farm Work
This kit fits the legendary John Deere 7020 row-crop tractor along with the popular 4230, 4430, and 4630 series machines. These tractors earned their reputation pulling heavy tillage equipment, running big planters, and handling demanding loader work around the farm. The 404 CID turbocharged engine was built for torque and durability in these applications.
Made to Last
All components are manufactured to handle the heat, pressure, and demanding duty cycles these engines were designed for. The keystone compression rings provide excellent sealing for turbocharged applications, while the standard bore sizing means you can rebuild without machine work if your cylinders are still in good shape.
Good to Know
This is a basic engine kit that covers the major internal components, but you’ll want to have your cylinders checked for taper and out-of-round before assembly. If your sleeves need replacement, this kit has you covered. Take time to check your crankshaft for wear and have it turned if needed—fresh bearings deserve a good crank surface to ride on.
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