The A & I PRODUCTS MAJOR OVERHAUL KIT includes all essential components for a comprehensive engine rebuild. This kit is designed to restore engine performance and reliability, featuring high-quality parts that meet OEM specifications. Ideal for agricultural and industrial applications, it includes gaskets, seals, and bearings necessary for a complete overhaul. This overhaul kit is crucial for extending engine life and ensuring optimal operation.
Major John Deere Overhaul Kit for engine 6.404T/A Diesel, 400 Series. 6 CYL. with Block #: R43310, R45980, R47110. Bore: 4.25 (108mm), Piston Pin: 1.61 (41mm). Kit includes: Piston Liner Kit, Main Bearing, Thrust Bearing, Thrust Washer Set, Connecting Rod Bearing, Connecting Rod Bushing, Connecting Rod Capscrew, Camshaft Capscrew, Front Crankshaft Seal, Rear Crankshaft Seal, and Overhaul Gasket Set without Seals. Fits John Deere models: 5440, 644, 644A, 646, 646B, 690, 690A, 4320, 4520, and 4620.
• 6 CYL. BLOCK #: R43310, R45980, R47020, R47110; PISTON MARKED: AR50624, AR50940
• Bore: 4.25" 108mm, Pin: 1.61", 41mm
| Engine Overhaul Kits > 6.404T/A Diesel, 400 Series |
| John Deere FORAGE HARVESTER: 5440 (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere INDUSTRIAL/CONSTRUCTION: 644 (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere INDUSTRIAL/CONSTRUCTION: 644A (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere INDUSTRIAL/CONSTRUCTION: 646 (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere INDUSTRIAL/CONSTRUCTION: 646B (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere INDUSTRIAL/CONSTRUCTION: 690 (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere INDUSTRIAL/CONSTRUCTION: 690A (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere TRACTOR: 4320 (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere TRACTOR: 4520 (SN <335845, 6.404T/A, 6 CYL ENG) |
| John Deere TRACTOR: 4620 (SN <335845, 6.404T/A, 6 CYL ENG) |
| Group Description | Component | Size / Desc | Qty |
| Piston Liner Kit | A-AR51798 | | 6.00 |
| Bearing, Main | A-AR74814 | STD | 6.00 |
| A-AR74816 | .010 | 6.00 |
| A-AR74817 | .020 | 6.00 |
| A-AR74818 | .030 | 6.00 |
| Bearing, Thrust | A-AR77748 | STD | 1.00 |
| A-AR77750 | .010 | 1.00 |
| A-AR77751 | .020 | 1.00 |
| A-AR77752 | .030 | 1.00 |
| Washer Set, Thrust | A-AR77747 | STD | 1.00 |
| Bearing, Conn Rod | A-AR45723 | STD | 6.00 |
| A-AR46396 | .010 | 6.00 |
| A-AR46397 | .020 | 6.00 |
| A-AR46398 | .030 | 6.00 |
| Seal, Front Crankshaft | A-AR49025 | | 1.00 |
| Seal, Rear Crankshaft | A-RE22764 | | 1.00 |
| Bushing, Conn Rod | A-R42173 | For Trapezoid shaped bus | 6.00 |
| Capscrew, Conn Rod | A-R66452 | Machine Split Conn Rod | 12.00 |
| Bearing, Camshaft | A-R46903 | | 4.00 |
| Gasket OH Set w/o Seals | A-AR53094 | | 1.00 |
next >> | Item Number | Description | Qty |
| A-AR49771 | Pump, Fuel Lift Transfer | 1 |
| A-AR51741 | Rings, Piston | 6 |
| A-AR55394 | Cooler, Oil | 1 |
| A-AR65507 | Sealing Ring Kit, Liner | 6 |
| A-IK21340 | IN FRAME OH KIT | 1 |
| A-RE11410 | Rotator, Valve | 12 |
| A-RE53422 | Crankshaft w/A-R26049 gear | 1 |
| A-R26115 | Plug, Camshaft | 1 |
| A-R26125 | Spring, Valve | 12 |
| A-R40615 | Liner, Cylinder | 6 |
| A-R41425 | Pin, Piston | 6 |
| A-R43679 | Valve, Exhaust | 6 |
| A-R43680 | Insert, Intake Valve | 6 |
| A-R43681 | Insert, Exhaust Valve | 6 |
| A-R43787 | Valve, Exhaust | 6 |
| A-R43883 | Valve, Intake | 6 |
| A-R45003 | Valve, Intake | 6 |
| A-R47153 | O-Ring, Oil Cooler | 1 |
| A-R48291 | Gasket, Head | 1 |
| A-R52773 | Follower, Camshaft | 12 |
| Replaces: | RE524435 | JOHN DEERE |
| RG27926 | JOHN DEERE |
| Crossed From: | BEKD4457-LCB | TISCO |
| EOK4457 | TISCO |
| EOK4457-LCB | TISCO |
| EOK4457-010 | TISCO |
| EOK4457-020 | TISCO |
| EOK4457-030 | TISCO |
| EOK4458-LCB | TISCO |
