The PISTON WITH RINGS .040" from A & I PRODUCTS is engineered for optimal performance in engines. This piston features high-quality materials and precise dimensions, ensuring a perfect fit and efficient operation. It is designed to withstand high pressures and temperatures, making it ideal for various agricultural applications.The piston with rings .040" oversize by A & I PRODUCTS, model RK158-40, is engineered for engine rebuilds requiring precise fitment. Manufactured from high-grade aluminum alloy, it offers durability and heat dissipation properties. The piston diameter is increased by 0.040 inches to accommodate cylinder honing or wear. It includes matching piston rings designed to provide optimal sealing, reduce oil consumption, and maintain compression. Compatible with specified engine models, this piston set meets OEM specifications for performance and reliability. The RK158-40 kit supports standard wrist pin and ring groove dimensions.
| Engine Parts > 256 CID Diesel |
| Ford / New Holland TRACTOR: 5000 (4/1968-1975) |
| Ford / New Holland TRACTOR: 5600 (10/1980-1981) |
| Ford / New Holland TRACTOR: 5700 (10/1980-1981) |
| Ford / New Holland TRACTOR: 6600 (1975-9/1980) |
| Ford / New Holland TRACTOR: 6700 (1975-9/1980) |
| Group Description | Component | Size / Desc | Qty |
| PISTON, .040 | A-D4NN6108AE | | 1.00 |
| PISTON RINGS | A-PR189-40 | | 1.00 |
| Item Number | Description |
| A-IK197 | In Frame Engine Overhaul Kit |
| A-IK256 | In Frame Engine Overhaul Kit |
| A-OK197 | Major Engine Overhaul Kit |
| A-OK256 | Major Engine Overhaul Kit |
| Replaces: | D4NN6110AL | FORD |
| Crossed From: | 81846018 | NEW HOLLAND |
| 83917471 | NEW HOLLAND |
| 87554671 | GOLD VALUE |
