Cummins 6BT Piston 3926631 50mm Chamber Size For B-Series Diesel Engine Parts

Product Details

Product Overview

This premium aftermarket piston is specifically engineered for the Cummins 6BT B-Series diesel engine. Featuring a precise 50mm chamber size and identified by OEM part number 3926631, this component is manufactured to meet or exceed original equipment specifications. Ideal for heavy-duty applications, we supply this piston globally to major markets including North America, Europe, Southeast Asia, the Middle East, and Australia, ensuring fast and reliable delivery to industrial centers and ports worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured with high-strength aluminum alloy for superior durability and heat dissipation under extreme operating conditions.
• Enhanced Performance: The optimized 50mm chamber design improves combustion efficiency, leading to better fuel economy and reduced emissions.
• Extended Service Life: Features advanced ring groove technology and wear-resistant coating to minimize friction and extend engine overhaul intervals.
• Stringent Quality Control: 100% dimensional inspection and pressure testing ensure perfect fitment and reliable performance in your 6BT engine.
• Direct Replacement: A perfect drop-in replacement for OEM part 3926631, simplifying maintenance and reducing downtime.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM and aftermarket part numbers:

• OEM Cummins: 3926631
• Alternative Part Numbers: 3917106, 3926630 (verify application)
• Related Component Sets: Often sold with piston rings (part number 3803554) and liners for a complete rebuild.

Compatibility

• Engine Models: Cummins 6BT (B-Series 5.9L), 6BTA, 6BTAA
• Vehicle Applications: Dodge Ram 2500/3500 (1994-2002), Freightliner, International, Ford, Chevrolet medium-duty trucks, and various industrial, agricultural, and marine equipment using the 6BT engine platform.
• Year Range: Primarily 1994-2002 (verify engine serial number for exact fitment).

Global Supply & Distribution

We are a leading supplier of Cummins engine parts with a robust global logistics network. Our capabilities include:

• Worldwide Shipping: Reliable air and sea freight options to all major continents.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Australia, Singapore, UAE), Middle East (Saudi Arabia, UAE), and Africa.
• Fast Delivery: Inventory ready for immediate dispatch to major ports like Los Angeles, Rotterdam, Shanghai, and Dubai.
• Export Compliance: Full documentation for international trade, including certificates of origin and commercial invoices.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities, adhering to strict quality management systems.
• Certifications: All parts meet or exceed SAE and ASTM material standards.
• Testing: Each piston undergoes dimensional verification, hardness testing, and visual inspection before packaging.
• Warranty: We offer a 12-month warranty against manufacturing defects in materials and workmanship.

FAQ

Q: Is this piston a direct replacement for the original Cummins 3926631 part?
A: Yes, this piston is manufactured to match the exact specifications of the OEM Cummins 3926631 part. It is a direct drop-in replacement, requiring no modifications to the engine block or connecting rods. Always verify your engine’s serial number for compatibility.

Q: What is the recommended installation procedure for this piston?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Clean the cylinder bore thoroughly. 2) Lubricate the piston and rings with engine oil. 3) Use a proper ring compressor to install the piston into the bore. 4) Torque the connecting rod bolts to the manufacturer’s specifications (typically around 110-120 ft-lbs for the 6BT). We recommend replacing the piston rings and wrist pin bushings simultaneously.

Q: How can I verify the chamber size is 50mm for my engine?
A: The 50mm chamber size refers to the diameter of the combustion bowl on the piston crown. For the Cummins 6BT, this is a standard specification for many applications. To confirm, measure the existing piston’s chamber with a caliper or check your engine’s service manual. If you have a different chamber size, please contact us for the correct variant.