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Overhaul Kit, 6404A and 6404T Engine, Hyperformance, Diesel for John Deere® Tractor

SKU
AMOH1437
$1,720.00

John Deere®
Tractors - 4320, 4520, 4620, 7020

Forage Harvester - 5200

Wheel Loaders - 644, 644A

6 Cylinder Engine SN 215000-335845 with 4.250" Bore, 4.750" Stroke, Turbocharged, Aftercooled, Blocks Marked R43310, R45980, R47020, R47110, External Tube Type Oil Cooler, Hyperformance

Includes:
- Cylinder Kits
- Piston Pin Bushings
- Rod Bearings
- Main Bearings
- Camshaft Bushings
- Camshaft Plug
- Front and Rear Crankshaft Seals
- Overhaul Gasket Set
- Connecting Rod Bolts

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New
Used
Remanufactured

Includes 1-Year Warranty

Estimated shipping

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Drop Ship expected available on Sep 15, 2026
Customize Overhaul Kit, 6404A and 6404T Engine, Hyperformance, Diesel for John Deere® Tractor
1 x Cam Plug SKU: AMR26115
4 x Camshaft Bearing SKU: AMR46903
1 x Front Crankshaft Seal SKU: AMAR49025
6 x Cylinder Kit SKU: AMRE69393HC
12 x Connecting Rod Bolt SKU: AMR66452
1 x Overhaul Gasket Set without Seals SKU: AMRG27873
1 x Rear Crankshaft Seal SKU: AMRE520036
6 x Piston Pin Bushing SKU: AMR42173
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Overhaul Kit, 6404A and 6404T Engine, Hyperformance, Diesel for John Deere® Tractor

$1,720.00
  • Kansas Warehouse: Drop Ship expected available on Sep 15, 2026
  • South Dakota Warehouse: Drop Ship expected available on Sep 15, 2026
  • Montana Warehouse: Drop Ship expected available on Oct 20, 2026
  • South Carolina Warehouse: Drop Ship expected available on Sep 18, 2026
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Need Help?Our Ag part experts are here to help

785-655-9467 Mon - Fri, 08:00 AM - 5:00 PM, CST

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ADD-ONS & RELATED PRODUCTS
Crankshaft for John Deere® Tractor, Combine, Forage Harvester, RE53422
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Head Bolt Kit for John Deere® Tractors, Combines, Excavators
$146.76
Camshaft and Lifter Kit for John Deere® Tractor, AR100385
$410.00
Remanufactured Connecting Rod for John Deere® Tractor, R41423
$273.59
Remanufactured Engine Oil Pump
$1,170.00
Remanufactured Water Pump for John Deere® Tractor, R46561
$148.00
Remanufactured Injector
$125.01
Total Price:

What it fits

John Deere®
Tractors - 4320, 4520, 4620, 7020

Forage Harvester - 5200

Wheel Loaders - 644, 644A

Specifications

Additional Notes
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Kit Includes
- Cylinder Kits - Piston Pin Bushings - Rod Bearings - Main Bearings - Camshaft Bushings - Camshaft Plug - Front and Rear Crankshaft Seals - Overhaul Gasket Set - Connecting Rod Bolts
Engine Fitment
6 Cylinder Engine SN 215000-335845 with 4.250" Bore, 4.750" Stroke, Turbocharged, Aftercooled, Blocks Marked R43310, R45980, R47020, R47110, External Tube Type Oil Cooler, Hyperformance
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Product Details

This Hyperformance diesel engine overhaul kit is designed for John Deere® 6404A and 6404T engines used in 4320, 4520, 4620, and 7020 tractor models, as well as 5200 forage harvester applications. It provides the components needed for a complete engine rebuild, helping restore compression, performance, and long-term reliability in demanding agricultural conditions. Engineered for durability and dependable operation, this overhaul kit is built to handle heavy workloads while maintaining efficient power and productivity. It is a practical solution to extend engine life, reduce downtime, and keep your equipment performing at its best during fieldwork and harvest operations.

As a family-owned company, Abilene Machine has been providing farmers with dependable agricultural replacement parts for over 40 years. Whether you need to make a repair or perform scheduled maintenance, you can depend on us to help keep your equipment in great working condition. If you have any questions, please do not hesitate to contact our knowledgeable sales staff. We have over 100 years of combined ag parts sales experience to assist you.

Warranty Info

Abilene Machine, LLC offers a standard 1-year warranty on all new, used and remanufactured parts. Abilene Machine reserves the right to inspect any or all parts returned for warranty before warranty claims will be honored. In all instances, Abilene Machine's sole liability will be either replacing the defective part or a refund not to exceed the purchase price of the defective part.

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