Cummins Main Bearing Kit AR12250 – Crankshaft Support for Reliable Engine Performance
The Cummins Main Bearing Kit AR12250 plays a key role in supporting the crankshaft and maintaining engine balance. As part of the trusted Cummins genuine parts and CCEC parts lineup, this kit helps ensure smooth rotation, reduced friction, and long-lasting durability—even under heavy load and high-pressure cycles.
Designed to Cummins OEM standards, this kit is a reliable solution for engine rebuilds, ensuring crankshaft alignment and stable oil film retention throughout the engine’s life.
🔩 Specifications
- Part Number: AR12250
- Part Name: Main Bearing Kit
- Material: Tri-metal alloy with steel backing
- Surface Coating: Anti-friction overlay
- Configuration: Upper and lower bearing halves
- Condition: 100% Brand New
- Category: Engine Bearings
- Standard: Built to Cummins OEM specifications
- Compatibility: Fits select Cummins and CCEC diesel engines (confirm with ESN)
⭐ Key Features
- Tri-metal construction improves durability and fatigue resistance
- Precision-ground surfaces help maintain crankshaft alignment
- Special oil groove design ensures stable lubrication under stress
- Low-friction coating supports smooth, quiet operation
- Drop-in fit for Cummins and CCEC parts-based engine systems
⚙️ Technical Insights
- High Load Capacity: Withstands extreme combustion forces common in industrial engines
- Heat Resistance: Resists deformation at high temperatures for reliable performance
- Consistent Lubrication: Oil groove geometry keeps a steady oil film, reducing wear
- Tight Tolerances: Manufactured with strict precision to fit OEM specifications
🛠 Application Scenarios
The AR12250 Main Bearing Kit is widely used in:
- Heavy-duty diesel engines for trucks, buses, and off-road machinery
- Generator sets and industrial engines running around the clock
- Marine engines where torque stability is crucial
- Construction equipment such as bulldozers, cranes, and graders
- Engine rebuilds involving CCEC parts and Cummins genuine parts
📦 Availability
The Cummins AR12250 Main Bearing Kit is in stock and ready for immediate global delivery.
To confirm compatibility, please provide your engine serial number (ESN) before ordering.
We offer a complete range of Cummins parts and CCEC parts to support your maintenance and overhaul operations with confidence.
