The A & I Products Major Overhaul Kit is essential for comprehensive engine maintenance. This kit includes all necessary components for a complete overhaul, ensuring optimal performance and longevity. Crafted from high-quality materials, each part meets industry standards for reliability and durability. Ideal for agricultural and industrial applications, this overhaul kit simplifies the maintenance process, making it a valuable addition to your equipment care routine.The Major Overhaul Kit OK6225 from A & I PRODUCTS is a comprehensive repair set intended for extensive maintenance and rebuilding of machinery components. This overhaul kit includes a variety of seals, gaskets, bearings, and other critical replacement parts engineered to restore equipment functionality. Components are made from high-quality materials such as rubber, metal alloys, and composites to ensure durability and compatibility with original equipment. The kit is designed to fit specific engine or mechanical models, providing all necessary parts for a thorough overhaul process. A & I PRODUCTS' OK6225 kit supports maintenance operations by reducing downtime and enhancing equipment reliability.
Major John Deere Overhaul Kit for engine 6.531A Diesel, 500 Series. 6 Cyl. with Block #: R48260, R72129, R80401, ROD#: R48315, R53287, R58883, R66926. Standard Bore: 4.75 (121mm), Piston Pin: 1.875 (47.6mm). Kit includes: Piston Liner Kit, Main Bearing, Thrust Bearing, Thrust Washer Set, Connecting Rod Bearing, Front Crankshaft Seal, Rear Seal, Connecting Rod Bushing, Connecting Rod Bolt, and Camshaft Bearing. Fits John Deere models: 6030 and 7520.
• 6 CYL. BLOCK: R48260, R72129, R80401, ROD#: R48315, R53287, R58883, R66926; PISTON MARKED: AR66347, AR53227
• Bore: 4.75" 121mm, Pin: 1.875", 47.6mm
| Engine Overhaul Kits > 6.531A Diesel, 500 Series |
| John Deere TRACTOR: 6030 (6.531A 6CYL ENG) |
| John Deere TRACTOR: 7520 (6.531A 6CYL ENG) |
next >> | Group Description | Component | Size / Desc | Qty |
| Piston Liner Kit | A-PLK225 | Piston not sold separate | 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-R76783 | | 6.00 |
| Bolt, Conn Rod | A-R66453 | | 12.00 |
| Gasket OH Set w/o Seals | A-RE17046 | | 1.00 |
| Item Number | Description | Qty |
| A-AR53226 | Rings, Piston | 6 |
| A-E1343FN | Retainer, Piston Pin | 12 |
| A-IK6225 | IN FRAME OH KIT | 1 |
| A-R35431 | Lock, Valve | 12 |
| A-R49423 | O-Ring Kit | 6 |
| A-R49569 | Spring, Valve Inner | 12 |
| A-R49571 | Spring, Valve Outer | 12 |
| A-R53192 | Guide, Intake & Exhaust Valve | 12 |
| A-R78513 | Gasket, Head | 1 |
| A-R81086 | Rotator, Valve | 12 |
| A-R90601 | Valve, Exhaust | 6 |
| A-R90602 | Valve, Intake | 6 |
| A-SMJD203 | John Deere Shop Manual | 1 |
| A-10152 | Assembly Lube; 8 oz | 1 |
| A-10153 | Assembly Lube; Case of 12-8ozbottles | 1 |
