3907156 Engine Piston for Cummins 4BT 6BT 3.9L 5.9L Diesel Engine, Case Tractor 2096 5120 Excavator

Product Details

Product Overview

This high-quality engine piston, identified by OEM part number 3907156, is a critical component for Cummins 4BT, 4BTA, 6BT, and 6BTA diesel engines. Designed for the popular 3.9L and 5.9L displacement platforms, this piston assembly is a direct replacement part commonly used in Case tractor models, including the 2096 and 5120, as well as various excavator and heavy construction machinery.

Manufactured to meet stringent OEM specifications, this piston ensures reliable performance and long service life in demanding applications. It is a vital component for engine overhauls, rebuilds, or preventive maintenance on industrial and agricultural equipment. Please verify your engine model and existing part number to ensure correct fitment before purchase.

Key Features & Benefits

• Precision Fitment: Direct replacement for Cummins 4BT, 4BTA, 6BT, and 6BTA engines (3.9L & 5.9L), ensuring a seamless installation.
• High-Strength Material: Constructed from high-strength aluminum alloy for superior durability, heat dissipation, and resistance to thermal stress.
• Standard Size (STD): Bore diameter of 102mm (STD), suitable for standard engine rebuilds without the need for over-boring.
• Rigorous Quality Control: Each piston undergoes outgoing inspection and machinery test reports to guarantee dimensional accuracy and performance.
• Enhanced Engine Performance: Restores compression, reduces oil consumption, and improves overall engine efficiency and power output.
• Versatile Application: Ideal for agricultural tractors (Case 2096, 5120), excavators, and other construction machinery powered by these Cummins engines.

Technical Specifications

OEM Cross-Reference

This piston assembly is a direct replacement for the following OEM and interchange part numbers. Use these to verify compatibility with your existing engine components.

• Primary OEM: 3907156
• Interchange Numbers:
  • 3802100
  • A77419
  • A77730

Compatibility

This part is specifically designed for use in the following engines and applications. Please confirm your engine model before ordering.

• Engines:
  • Cummins 4BT (3.9L)
  • Cummins 4BTA (3.9L)
  • Cummins 6BT (5.9L)
  • Cummins 6BTA (5.9L)
• Common Applications:
  • Case Tractor Models: 2096, 5120
  • Excavators powered by Cummins B-series engines
  • Other agricultural and construction machinery using these engine platforms

Note: Fitment may vary based on specific equipment configurations. Always cross-reference with your engine serial number and existing part for best results.

Global Supply & Distribution

We provide worldwide shipping to support international B2B buyers in the automotive and heavy equipment aftermarket. Our strategic location in Guangdong, China, allows for efficient logistics and fast delivery to major ports and industrial centers across the globe.

• Major Markets Served: North America, Europe, Asia-Pacific, Middle East, Africa, and South America.
• Shipping Capabilities: We partner with reliable freight forwarders to offer sea, air, and express delivery options tailored to your order volume and urgency.
• Export Experience: Fully experienced in international trade documentation, customs clearance, and compliance with global import/export regulations.
• Fast Delivery: Orders are processed promptly to ensure minimal downtime for your operations, with stock available for standard sizes.

Quality Assurance

We are committed to providing high-quality parts that meet or exceed OEM specifications. Our quality assurance process ensures every component is reliable and durable.

• Manufacturing Standards: Produced under strict quality control in ISO-compliant facilities.
• Testing: Each batch undergoes machinery test reports and outgoing inspection to verify dimensional accuracy and material integrity.
• Warranty: Standard 6-month warranty against manufacturing defects, with extended warranty options (6–12 months) available upon request.
• Video Support: Outgoing inspection videos can be provided to confirm part quality before shipment.

FAQ

Q1: How do I confirm this piston (3907156) is compatible with my Cummins 6BT engine?
A: First, check your engine model plate to ensure it is a 6BT or 6BTA (5.9L). Then, verify your current piston part number. If it matches 3907156, 3802100, A77419, or A77730, this is a direct replacement. We recommend measuring the cylinder bore to confirm it is 102mm standard size.

Q2: Can I use this piston in an over-bored engine?
A: No, this specific piston (3907156) is manufactured as a Standard Size (STD) with a 102mm bore. It is intended for engines that have not been over-bored. If your engine requires a larger diameter (e.g., 0.50mm or 1.00mm oversize), you will need a different piston part number.

Q3: What maintenance should I perform when replacing the piston?
A: When replacing the piston, it is highly recommended to also replace the piston rings, wrist pins, and cylinder liners (if applicable) to ensure optimal sealing and performance. Always clean the cylinder bore thoroughly, lubricate the new piston and rings with clean engine oil during installation, and follow the manufacturer’s torque specifications for the connecting rod bolts.