The 4089726 Engine Piston Kit is designed for Cummins B4.5 and QSB4.5 engines, replacing part number 3969036. Precision-engineered for durability, it ensures optimal engine performance and reliable compatibility for heavy-duty applications.
4089726 Engine Piston Kit
| PN |
NAME |
QTY |
| 3939375 |
RETAINING RING |
2 |
| 3939374 |
PISTON PIN |
1 |
| 3969036 |
ENGINE PISTON |
1 |
| 4089724 |
PISTON RING SET |
1 |
| -3932519 |
COMPRESSION PISTON RING |
1 |
| -3940777 |
COMPRESSION PISTON RING |
1 |
| -3932520 |
OIL PISTON RING |
1 |
