Cummins B3.3 QSB3.3 Engine Thrust Washer | OEM Replacement Part

Product Details

Product Overview

This high-quality thrust washer is specifically designed for the Cummins B3.3 and QSB3.3 diesel engine platforms. As a critical component in the engine’s bottom end, it controls the axial play of the crankshaft, ensuring smooth operation and preventing premature wear. We supply this essential part globally, serving major markets including North America, Europe, Southeast Asia, and the Middle East, with a focus on reliable shipping to industrial centers and ports worldwide.

Key Features & Benefits

• Precision Fitment: Manufactured to exact OEM specifications for a perfect, hassle-free installation on B3.3 and QSB3.3 engine blocks.
• Superior Durability: Constructed from high-grade, wear-resistant material to withstand high thrust loads and maintain consistent oil clearance.
• Extended Engine Life: Proper crankshaft end-play control reduces vibration and wear on main bearings and seals, directly contributing to longer engine service intervals.
• Rigorous Quality Control: Each washer is inspected for dimensional accuracy, surface finish, and material hardness to ensure reliable performance under demanding conditions.
• Cost-Effective Solution: Provides a direct replacement for the OEM part without compromising on quality, offering excellent value for repair shops and fleet maintenance.

Technical Specifications

OEM Cross-Reference

This thrust washer is a direct replacement for the following OEM part numbers. Please verify your original part number before ordering.

• Cummins OEM: 3937263, 3937264

Compatibility

This part is designed for the Cummins B3.3 and QSB3.3 engine families. These engines are commonly found in:

• Construction Equipment: Excavators, Skid Steer Loaders, Compact Track Loaders
• Agricultural Machinery: Tractors, Combines, Sprayers
• Industrial Applications: Forklifts, Generator Sets, Compressors

Global Supply & Distribution

We are a dedicated supplier to the global aftermarket, providing fast and reliable shipping solutions. Our logistics network ensures efficient delivery to major ports and industrial zones worldwide.

• Worldwide Shipping: We ship to over 50 countries via air, sea, and express courier services.
• Key Markets: Strong presence in North America, Europe, Southeast Asia (Singapore, Thailand, Indonesia), Australia, and the Middle East (UAE, Saudi Arabia).
• Fast Dispatch: Orders are processed and shipped within 24-48 hours from our warehouse.
• Trade Compliance: All shipments are handled with full customs documentation to ensure smooth international transit.

Quality Assurance

We are committed to delivering parts that meet or exceed OEM standards. Our quality management system ensures every component is reliable.

• Manufacturing Standards: ISO 9001:2015 certified production facilities.
• Warranty: 12-month warranty against manufacturing defects in material and workmanship.
• Testing: Each batch undergoes dimensional inspection and material verification before shipping.

FAQ

Q: How do I know if this thrust washer fits my specific engine?
A: Please verify your engine model (B3.3 or QSB3.3) and cross-reference your old part number with the OEM numbers listed above (3937263 or 3937264). This part is specifically for the crankshaft thrust position and is not interchangeable with main bearing washers.

Q: Can I install this thrust washer without removing the crankshaft?
A: No. Replacing the thrust washer requires removing the crankshaft from the engine block. This is typically done during a full engine rebuild or when replacing main bearings. It is crucial to check the crankshaft thrust face for wear and measure the end-play clearance during reassembly.

Q: What is the recommended maintenance for this part?
A: The thrust washer is a wear component and should be inspected during any major engine overhaul. There is no routine maintenance for the washer itself, but maintaining proper engine oil level and pressure is critical for its lubrication and longevity. If you notice excessive crankshaft end-play or a knocking noise from the bottom end, the washer should be inspected and replaced immediately.