M11 0.50 Main Bearing for Cummins Engine | | Excavator & Truck Parts

Product Details

Product Overview

This M11 0.50 Main Bearing is a precision-engineered component designed for use in Cummins M11 diesel engines. Manufactured by, this main bearing is crafted to meet OEM specifications, ensuring reliable performance and durability in heavy-duty applications. As a critical part of the engine’s rotating assembly, this bearing supports the crankshaft and reduces friction, contributing to smooth engine operation and extended service life.

This bearing is commonly used in a variety of industrial and commercial vehicles, including excavators, bulldozers, buses, trucks, and loaders. The 0.50 oversize specification indicates it is suitable for engines where the crankshaft has been reground to the corresponding undersize, providing a precise fit for rebuilt or overhauled engines. It is an ideal choice for maintenance and repair shops, equipment dealers, and fleet operators seeking a cost-effective, high-quality replacement part.

Backed by a 6-month warranty and rigorous quality control, this M11 main bearing offers excellent value for B2B buyers. It is available for worldwide shipping, with stock located in Guangdong, China, ensuring fast delivery to major markets.

Key Features & Benefits

• Precision Fit: Manufactured to OEM specifications for the Cummins M11 engine, ensuring a perfect match for 0.50 oversize crankshaft journals.
• Durable Construction: Made from high-quality materials designed to withstand the high loads and temperatures of heavy-duty diesel operation.
• Extended Engine Life: Reduces friction and wear on the crankshaft, helping to maintain optimal engine performance and longevity.
• Cost-Effective Solution: A reliable aftermarket alternative to genuine OEM parts, offering significant savings without compromising quality.
• Rigorous Testing: Each batch undergoes machinery test reports and outgoing video inspections to verify dimensional accuracy and performance.
• Versatile Application: Suitable for a wide range of equipment, including excavators, bulldozers, buses, trucks, and loaders powered by Cummins M11 engines.
• Easy Installation: Packed securely in plastic bags, boxes, and cartons to ensure the part arrives in pristine condition, ready for installation.

Technical Specifications

OEM Cross-Reference

This M11 0.50 Main Bearing is designed as a direct replacement for the following OEM and aftermarket part numbers. Please verify your engine’s specifications before ordering.

• OEM Cummins Part Numbers: 3010590, 3010591, 3044201 (Please confirm exact OEM number for your application)
• Aftermarket Cross-Reference: M11 Main Bearing (0.50 OS)
• Note: This is a 0.50 oversize bearing. Ensure your crankshaft has been ground to the corresponding undersize dimension.

Compatibility

This main bearing is commonly used for the following engine models and applications. Fitment is inferred based on standard industry practices for the Cummins M11 engine platform.

• Engine Models: Cummins M11, M11 Plus, M11-C, M11-330E, M11-370E
• Vehicle Applications:
  • Excavators (e.g., Komatsu PC400, PC450 series)
  • Bulldozers (e.g., Komatsu D375, D475 series)
  • Buses (e.g., Blue Bird, Thomas Built models with Cummins M11)
  • Trucks (e.g., Kenworth T800, Peterbilt 379, Freightliner FLD with Cummins M11)
  • Loaders (e.g., Komatsu WA500, WA600 series)
  • Forklifts (e.g., Taylor, Hyster models with Cummins M11)

Global Supply & Distribution

We offer reliable worldwide shipping for this M11 main bearing, catering to international B2B buyers. Our supply chain is optimized for fast delivery to major industrial centers and ports across the globe.

• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and Oceania.
• Shipping Hubs: Stock is maintained in Guangdong, China, with drop-shipping capabilities to major ports like Los Angeles, Rotterdam, Dubai, and Singapore.
• Export Experience: We have extensive experience in international trade, ensuring compliance with customs regulations and providing necessary documentation for smooth clearance.
• Delivery Options: Express (DHL, FedEx, UPS), Air Freight, and Sea Freight available based on your urgency and budget.

Quality Assurance

Quality is a top priority for. This M11 main bearing is manufactured under strict quality control standards to ensure reliability and performance.

• Manufacturing Standards: Produced in ISO-certified facilities, adhering to international quality management systems.
• Testing: Each production batch is subject to a Machinery Test Report to verify dimensional accuracy and material integrity. Video Outgoing Inspection is provided for visual confirmation of quality.
• Warranty: This product comes with a 6-month warranty against manufacturing defects, providing peace of mind for your procurement needs.
• Traceability: All parts are batch-coded for full traceability from production to delivery.

FAQ

Q1: How do I confirm that this 0.50 oversize main bearing fits my Cummins M11 engine?

A: To confirm fitment, you must first measure your crankshaft main journal diameter. The 0.50 oversize bearing is designed for a crankshaft that has been ground down by 0.50 mm (or 0.020 inches) from the standard size. If your crankshaft is at standard size, you require a standard (STD) bearing. Always consult your engine’s service manual or a qualified machinist to verify the journal dimensions before purchasing.

Q2: What is the installation procedure for this main bearing?

A: Installation should be performed by a qualified diesel mechanic. General steps include: 1) Clean the bearing bore and crankshaft journal thoroughly. 2) Apply clean engine oil to the bearing surface. 3) Place the bearing halves into the connecting rod and main bearing caps, ensuring the locating tabs are seated correctly. 4) Torque the main bearing cap bolts to the manufacturer’s specifications using a calibrated torque wrench. 5) Always check bearing clearance using Plastigage to ensure proper oil clearance before final assembly.

Q3: How should I store this bearing before installation?

A: Store the bearing in its original packaging in a clean, dry environment at room temperature. Avoid exposure to moisture, dust, or extreme temperatures. Do not remove the protective oil coating until immediately before installation. Keep the bearing away from magnetic fields and handling with dirty hands to prevent contamination of the precision surface.