3907163 102mm STD Engine Piston Assembly For Cummins 4BT 3.9 6BT 5.9 Diesel Engine 3802066 3802160

Product Details

Product Overview

This is a high-quality, standard-size (STD) engine piston assembly, identified by OEM numbers 3907163, 3802066, and 3802160. Designed with a precise 102.00 mm bore diameter, this component is a critical replacement part for popular Cummins diesel engine platforms. It is specifically engineered for use in Cummins 4BT 3.9L and 6BT 5.9L engine models.

Manufactured from high-strength aluminum alloy, this piston assembly is built to withstand the extreme pressures and temperatures of heavy-duty diesel operation. It is commonly applied in a wide range of machinery including trucks, excavators, and generator sets, making it a versatile spare part for fleet maintenance and equipment overhaul.

As a direct replacement part, it ensures a proper fit and reliable performance for engine rebuilds. This product comes with a standard warranty and is ready for global distribution, meeting the demands of B2B buyers in the construction, agricultural, and industrial sectors.

Key Features & Benefits

• OEM-Grade Fitment: Direct cross-reference to Cummins numbers 3907163, 3802066, and 3802160 ensures a precise, drop-in replacement for your engine rebuild.
• Standard Size Precision: Manufactured to exact STD (Standard) specifications with a 102.00 mm bore diameter, eliminating the need for oversized machining.
• Durable Material Construction: Crafted from high-strength aluminum alloy, offering excellent thermal conductivity and resistance to wear for extended service life.
• Proven Compatibility: Specifically designed for the Cummins 4BT 3.9L and 6BT 5.9L engine families, which are power units for a vast range of heavy equipment.
• Comprehensive Kit Potential: Often used in conjunction with piston rings and liners (available separately) for a complete top-end overhaul solution.
• Rigorous Testing: Each piston undergoes outgoing inspection to verify dimensional accuracy and material integrity before shipment.

Technical Specifications

OEM Cross-Reference

This piston assembly is a direct replacement for the following original equipment manufacturer (OEM) part numbers. Always verify your existing part number for a perfect match.

• Cummins: 3907163
• Cummins: 3802066
• Cummins: 3802160
• Cummins: 4991277

Compatibility

This part is designed for use with the following engine models and applications. Fitment is based on the specific engine configuration; please confirm your engine serial number.

• Engine Models: Commonly used for Cummins 4BT 3.9L and 6BT 5.9L diesel engines.
• Vehicle/Equipment Applications: Commonly used for Truck, Excavator, Heavy Machinery, and Generator Set applications.

Global Supply & Distribution

We offer worldwide shipping capabilities to meet the demands of international B2B buyers. Our supply chain is optimized for fast delivery to major industrial centers and ports, including those in North America, Europe, Asia-Pacific, the Middle East, and Africa. We have extensive export experience and ensure all shipments comply with international trade standards. Whether you need a single unit for a specific repair or bulk stock for a fleet, we can fulfill your order with reliable logistics.

Quality Assurance

Every piston assembly is manufactured in a certified facility in Guangdong, China, adhering to strict quality control standards. The product is covered by a 6-month warranty against manufacturing defects. We provide a Machinery Test Report and Video Outgoing Inspection upon request to verify the quality and specifications before dispatch, ensuring you receive a component that meets the rigorous demands of heavy-duty diesel operation.

FAQ

Q: How do I confirm this piston will fit my Cummins 6BT 5.9 engine?
A: First, check the existing piston part number on your unit. If it is 3907163, 3802066, or 3802160, this is a direct replacement. Additionally, ensure your engine block has a standard 102.00 mm bore diameter and has not been previously oversized. For absolute certainty, we recommend comparing the piston dimensions and pin height with your original component.

Q: Does this piston come with rings and a pin?
A: This listing is for the piston assembly only. For a complete top-end rebuild, we recommend purchasing piston rings and a wrist pin separately. Please check our store or contact us for matching ring sets and pins for the Cummins 4BT/6BT application.

Q: What is the recommended installation procedure for this piston?
A: Installation should be performed by a qualified diesel mechanic. Key steps include: cleaning the cylinder bore, lubricating the piston and rings with clean engine oil, using a proper ring compressor to install the piston into the bore, and torquing the connecting rod bolts to the manufacturer’s specifications. Always replace the piston pin and connecting rod bearings during a rebuild for optimal performance.