| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1007 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1018 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1003 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1026 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1004 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1003 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1020 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1025 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1031 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1002 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1013 |
| Shipping method | Delivery time | Stock |
| Shipping | ~07-5-2026 | 1002 |
The main crankshaft bearings support the crankshaft inside the engine block and allow it to rotate smoothly under extreme loads and high speeds. These bearings are critical for maintaining oil pressure, reducing friction, and preventing metal to metal contact inside the engine. Worn bearings can lead to knocking noises, low oil pressure, severe engine damage, or complete engine failure.
Porza supplies high precision crankshaft main bearings produced from advanced layered bearing materials that provide excellent wear resistance, load capacity, and thermal stability. These bearings ensure smooth crankshaft rotation, consistent lubrication, and long term engine protection even under heavy duty conditions.
Main bearings vary in size, tolerance class, and engine specific configuration. Replacing worn bearings restores oil pressure stability, reduces vibration, and protects vital engine components. With Porza, you receive OEM grade accuracy and dependable performance.