The A & I PRODUCTS MAJOR OVERHAUL KIT provides everything needed for a thorough engine rebuild. This comprehensive kit includes high-quality components that meet industry standards, ensuring reliability and performance. Designed for agricultural applications, it helps restore engine efficiency and prolongs the lifespan of your machinery. Each part is crafted from durable materials, making this kit a smart investment for maintenance.The Major Overhaul Kit (model OK20604) from A & I PRODUCTS is designed for comprehensive repair and maintenance of machinery components. It includes a selection of seals, bearings, gaskets, and other critical wear parts manufactured to OEM specifications. Materials used ensure durability and compatibility with original equipment. The kit's parts are dimensioned to match exact OEM tolerances, facilitating straightforward installation and restoration of operational integrity. Suitable for agricultural and industrial equipment, the OK20604 overhaul kit aids in extending machine service life and maintaining performance standards.
• Cummins Control Parts List#'s (CPL): (591 Marine Engine), 681, (721 Marine Engine), 725, 791, 843, 895, 981, 1172, 1259, 1312, 1522 & 1932.
• Serial & CPL#'s Are Found On A Tag Located On The Side Of The Timing Gear Housing And/Or Valve Cover. If Tag Is Missing, Check The Top Of The Oil Cooler Housing To See If It Is Stamped There.
• Serial Number Consist Of 8 Digits. CPL#'s Are 3 Or 4 Digits.
Kit Contains: Cylinder Kits, Main & Con Rod Bearings, Front & Rear Crankshaft Seals, Top & Bottom Gasket Sets And Piston & Cam Bushing.
Standard Piston Marked: 6223
Non-Emission
239 Cubic Inch
591*, 681, 721*, 725, 791, 843, 895, 981, 1172, 1259, 1312, 1522, 1932 (* Marine Eng)
next >> | Engine Overhaul Kits > 4-390 Naturally Aspirated Cummins "B" Series |
| Case-IH CRAWLER: 450C |
| Case-IH CRAWLER: 455C |
| Case-IH INDUSTRIAL/CONSTRUCTION: 480E |
| Case-IH INDUSTRIAL/CONSTRUCTION: 480ELL |
| Case-IH INDUSTRIAL/CONSTRUCTION: 480F |
| Case-IH INDUSTRIAL/CONSTRUCTION: 480FLL |
| Case-IH INDUSTRIAL/CONSTRUCTION: 550 |
| Case-IH INDUSTRIAL/CONSTRUCTION: 550E |
| Case-IH INDUSTRIAL/CONSTRUCTION: 580K |
| Case-IH INDUSTRIAL/CONSTRUCTION: 580SE |
| Case-IH INDUSTRIAL/CONSTRUCTION: 580SK |
| Case-IH INDUSTRIAL/CONSTRUCTION: 584E |
| Case-IH INDUSTRIAL/CONSTRUCTION: 585E |
| Case-IH INDUSTRIAL/CONSTRUCTION: 586E |
| Case-IH INDUSTRIAL/CONSTRUCTION: 660 |
| Case-IH INDUSTRIAL/CONSTRUCTION: 760 |
| Case-IH SKID STEER LOADER: 1840 |
| Case-IH SKID STEER LOADER: 1845C |
| Case-IH SWATHER/WINDROWER: 6000 |
| Case-IH SWATHER/WINDROWER: 6500 |
| Group Description | Component | Size / Desc | Qty |
| KIT, PISTON; STD. | A-3802060 | Std | 4.00 |
| BEARING SET, MAIN; STD. | A-3802010 | Std | 1.00 |
| BEARING SET, MAIN; 0.25MM | A-3802011 | 0.25 MM | 1.00 |
| BEARING SET, MAIN; 0.50MM | A-3802012 | 0.50 MM | 1.00 |
| BEARING SET, MAIN; 0.75MM | A-3802013 | 0.75 MM | 1.00 |
| BEARING, CON. ROD; STD. | A-3901170 | Std | 8.00 |
| BEARING, CON. ROD; 0.25MM | A-3901171 | 0.25 MM | 8.00 |
| BEARING, CON. ROD; 0.50MM | A-3901172 | 0.50 MM | 8.00 |
| BEARING, CON. ROD; 0.75MM | A-3901173 | 0.75 MM | 8.00 |
| BUSHING; CAM | A-3901306 | For Storm blocks use 394 | 1.00 |
| A-3940059 | | 1.00 |
| BUSHING; PISTON | A-4891178 | | 4.00 |
| GASKET SET; UPPER | A-3804896 | | 1.00 |
| GASKET SET; LOWER W/SEALS | A-3802375 | | 1.00 |
next >> | Item Number | Description | Qty |
| A-IK2060F4 | In-Frame Engine Overhaul Kit (Std.) - Fracture Split Conn Rod | 1 |
| A-IK20604 | In-Frame Engine Overhaul Kit (Std.) | 1 |
| A-IK2062F4 | In-Frame Engine Overhaul Kit (0.50 MM) .020"- Fracture Split Conn Rod | 1 |
| A-IK20624 | In-Frame Engine Overhaul Kit (0.50 MM) .020" | 1 |
| A-IK2064F4 | In-Frame Engine Overhaul Kit (1.00 MM) .040"- Fracture Split Conn Rod | 1 |
| A-IK20644 | In-Frame Engine Overhaul Kit (1.00 MM) .040" | 1 |
| A-OK2060F4 | Major Eng OH Kit (STD) - Fracture Split Conn Rod | 1 |
| A-OK2062F4 | Major Eng OH Kit (.50mm) - Fracture Split Conn Rod | 1 |
| A-OK20624 | Major Eng OH Kit (.50mm) | 1 |
| A-OK2064F4 | Major Eng OH Kit (1.00mm) - Fracture Split Conn Rod | 1 |
| A-OK20644 | Major Eng OH Kit (1.00mm) | 1 |
| A-10152 | Assembly Lube; 8 oz | 1 |
| A-10153 | Assembly Lube; Case of 12 8 oz bottles | 1 |
| A-3353978 | Seal; Crankshaft Rear | 1 |
| A-3802062 | Kit, Piston; 0.50 MM | 4 |
| A-3802064 | Kit, Piston; 1.00 MM | 4 |
| A-3802273 | Thermostat | 1 |
| A-3802355 | Kit; Intake Valve | 1 |
| A-3802356 | Kit; Exhaust Valve | 1 |
| A-3900276 | Spring; Valve | 1 |
