The A & I PRODUCTS major overhaul kit, model OK6549, is a comprehensive set of components intended for extensive engine or machinery rebuilds. This kit includes gaskets, seals, bearings, piston rings, and other critical parts necessary for restoring operational integrity. All parts are manufactured to meet OEM specifications, ensuring compatibility and performance. The kit supports maintenance of engines or equipment requiring full disassembly and refurbishment. Materials include high-grade metals and elastomers designed to withstand thermal and mechanical stresses. The OK6549 overhaul kit facilitates systematic replacement of worn parts during major service intervals.
Major John Deere Overhaul Kit for engine 6.531D Diesel, 500 Series. 6 Cyl. with Block #: R40270, R42370, R45300, R47510 ROD#: R35048, R58881, R40238, R66297, R53286. Standard Bore: 4.74 (121mm), Piston Pin: 1.75 (42.9mm). Kit includes: Piston Liner Kit, Main Bearing, Thrust Bearing, Thrust Washer Set, Connecting Rod Bearing, Connecting Rod Bushing, Connecting Rod Bolt, Camshaft Bearing, Front Crankshaft Seal, and Rear Seal. Fits John Deere models: 700, 700A, 760, 760A, 5010, 5020, and 6030.
• 6 CYL. BLOCK #: R40270, R42370, R45300, R47510 ROD#: R35048, R58881, R40238, R66297, R53286; PISTON MARKED: RE16548
• Bore: 4.74" 121mm, Pin: 1.75", 42.9mm
| Engine Overhaul Kits > 6.531D Diesel, 500 Series |
| John Deere INDUSTRIAL/CONSTRUCTION: 700 |
| John Deere INDUSTRIAL/CONSTRUCTION: 700A |
| John Deere INDUSTRIAL/CONSTRUCTION: 760 |
| John Deere INDUSTRIAL/CONSTRUCTION: 760A |
| John Deere TRACTOR: 5010 |
| John Deere TRACTOR: 5020 |
| John Deere TRACTOR: 6030 |
next >> | Group Description | Component | Size / Desc | Qty |
| Piston Liner Kit | A-PLK549 | | 6.00 |
| Bearing, Main | A-AR101266 | STD | 6.00 |
| A-AR104568 | .010 | 6.00 |
| A-AR104569 | .020 | 6.00 |
| A-AR104570 | .030 | 6.00 |
| Bearing, Thrust | A-AR101267 | STD | 1.00 |
| A-AR104564 | .010 | 1.00 |
| A-AR104565 | .020 | 1.00 |
| A-AR104566 | .030 | 1.00 |
| Washer Set, Thrust | A-AR89622 | STD | 1.00 |
| A-AR89971 | .007 | 1.00 |
| Bearing, Conn Rod | A-AR53020 | STD | 6.00 |
| A-AR57208 | .010 | 6.00 |
| A-AR57209 | .020 | 6.00 |
| A-AR57210 | .030 | 6.00 |
| Seal, Front Crankshaft | A-AR49025 | | 1.00 |
| Seal, Rear Crankshaft | A-RE13310 | | 1.00 |
| Bushing, Conn Rod | A-R36328 | | 6.00 |
| Bolt, Conn Rod | A-R66453 | | 12.00 |
| Gasket OH Set w/o Seals | A-AR53614 | | 1.00 |
| Item Number | Description | Qty |
| A-AR41295 | Rings, Piston | 6 |
| A-AR55951 | O-Ring | 6 |
| A-D2824R | Retainer, Piston Pin | 12 |
| A-IK6549 | IN FRAME OH KIT | 1 |
| A-R35431 | Lock, Valve | 12 |
| A-R48000 | Seal, Pencil Injector | 6 |
| A-R53192 | Guide, Intake & Exhaust Valve | 6 |
| A-R60746 | Seal, Pencil Injector | 6 |
| A-R78513 | Gasket, Head | 1 |
| A-SMJD203 | John Deere Shop Manual | 1 |
| A-10152 | Assembly Lube; 8 oz | 1 |
| A-10153 | Assembly Lube; Case of 12-8ozbottles | 1 |
