The Main Bearing Set STD (5) from A & I Products is engineered for reliable performance in engine applications. This set includes five standard bearings, designed to provide optimal support and reduce friction in the crankshaft assembly. Constructed from high-grade materials, these bearings ensure longevity and durability under various operating conditions. They meet industry standards for quality and performance, making them suitable for a wide range of engines. Ideal for both professional mechanics and DIY enthusiasts, this bearing set is essential for engine rebuilds.
4-3055130R21, 1-3055129R21
next >> | Engine Parts > DT268 Turbo Diesel |
| Case-IH TRACTOR: 4240 (ENG SN <900000) |
| Case-IH TRACTOR: 995 |
| Engine Parts > D206 CID |
| Case-IH TRACTOR: 474 |
| Case-IH TRACTOR: 584 |
| Case-IH TRACTOR: 585 |
| Engine Parts > D246 Diesel |
| Case-IH TRACTOR: HYDRO 84 |
| Case-IH TRACTOR: 4240 |
| Case-IH TRACTOR: 784 |
| Case-IH TRACTOR: 785 |
| Case-IH TRACTOR: 795 |
| Engine Parts > D268 Diesel |
| Case-IH TRACTOR: 4230 |
| Case-IH TRACTOR: 844 |
| Case-IH TRACTOR: 844 |
| Case-IH TRACTOR: 844S |
| Case-IH TRACTOR: 845 |
| Case-IH TRACTOR: 845 |
| Case-IH TRACTOR: 884 |
| Case-IH TRACTOR: 884 |
| Case-IH TRACTOR: 885 |
| Case-IH TRACTOR: 885 |
| Group Description | Component | Size / Desc | Qty |
| MAIN BEARING SET | A-3055129R21 | | 1.00 |
| MAIN BEARING PAIR | A-3055130R21 | | 4.00 |
| Item Number | Description |
| A-OKDT239 | Major Engine Overhaul Kit |
| A-OKDT268 | Major Engine Overhaul Kit |
| A-OKD246 | Major Engine Overhaul Kit |
| A-OKD268 | Major Engine Overhaul Kit |
| A-OK239 | Major Engine Overhaul Kit |
| A-OK501 | Major Engine Overhaul Kit |
| Replaces: | MBK239D | TISCO |
| MB239 | IH |
| Crossed From: | MBK239D | TISCO |
