3925878 3802601 Engine Piston With Pin Kit For Cummins 6CT 6CTA 6CTAA 8.3L Diesel Engine

Product Details

Product Overview

This high-quality Engine Piston with Pin Kit (OEM reference numbers 3925878, 3802601, 3926246, 3917707) is a direct replacement component designed for the Cummins 6CT, 6CTA, and 6CTAA 8.3L diesel engine family. This piston assembly is a critical internal engine part, responsible for transferring combustion force to the connecting rod. The kit includes the piston, piston pin, and retaining clips, providing a complete solution for your engine overhaul or repair.

Manufactured to standard size (STD) specifications with a bore size of 114.0 mm and a pin size of 45.0 mm * 91.0 mm, this kit ensures a precise fit for your specific engine application. This component is commonly used in heavy-duty machinery, including construction equipment, industrial generators, and agricultural vehicles, where reliable engine performance is non-negotiable.

Key Features & Benefits

• Precise Fitment: Manufactured to exact OEM specifications (STD size) for a seamless installation in Cummins 6CT series engines.
• Complete Kit: Includes the piston, pin, and clips, reducing sourcing complexity and ensuring all components are matched.
• Durable Construction: Built from high-strength materials to withstand extreme combustion pressures and temperatures, ensuring long service life.
• Rigorous Testing: Each unit undergoes machinery test report verification and outgoing video inspection to confirm quality standards.
• Cost-Effective Solution: A reliable aftermarket alternative to OEM parts, offering excellent value without compromising on performance.
• Global Compatibility: Designed for the widely used Cummins 8.3L platform, making it suitable for a vast range of machinery across different industries.

Technical Specifications

OEM Cross-Reference

This piston kit is a direct replacement for the following genuine Cummins part numbers. Please verify your engine’s specific needs before ordering:

• 3925878 – Main Piston Kit Reference
• 3802601 – Alternative Piston Kit Reference
• 3926246 – Additional Cross-Reference
• 3917707 – Additional Cross-Reference

Note: Always cross-reference with your current part number to ensure correct match.

Compatibility

This piston kit is specifically designed for the Cummins 6CT, 6CTA, and 6CTAA 8.3L diesel engine platform. These engines are commonly used for:

• Construction Machinery: Excavators, bulldozers, and wheel loaders.
• Industrial Equipment: Generator sets and air compressors.
• Agricultural Applications: Tractors and harvesters.
• Marine & Truck Applications: Where the 6CT series was factory installed.

Fitment Note: This part is commonly used for machinery repair shops and construction works. Always confirm the engine model and serial number to ensure compatibility.

Global Supply & Distribution

We provide a reliable global supply chain for this engine piston kit, ensuring fast delivery to major industrial centers worldwide. Our shipping network covers:

• North America: Fast delivery to ports in Los Angeles, Houston, and New York.
• Europe: Efficient shipping to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Direct supply from our manufacturing base in Guangdong, China, with rapid delivery to Singapore, Dubai, and Sydney.
• Middle East & Africa: Reliable shipping to Jebel Ali, Dammam, and Durban.

We offer flexible logistics options, including sea freight, air freight, and express courier (DHL, FedEx, UPS) to meet your urgent requirements. Our export team ensures all documentation is compliant with international trade regulations.

Quality Assurance

Every piston kit is manufactured under strict quality control procedures to meet or exceed OEM standards. Our quality assurance process includes:

• Material Verification: Raw materials are tested for chemical composition and mechanical properties.
• Dimensional Accuracy: Each part is inspected for precise bore size, pin diameter, and ring groove dimensions.
• Testing Reports: A machinery test report is provided to verify performance.
• Final Inspection: Each outgoing shipment is video-inspected for quality assurance.
• Warranty: Backed by a 6-month (extendable to 12 months) warranty against manufacturing defects.

FAQ

Q1: Is this piston kit compatible with my Cummins 6CT 8.3L engine?

A: Yes, this kit (OEM 3925878 / 3802601) is specifically designed for the Cummins 6CT, 6CTA, and 6CTAA 8.3L engine family. However, we strongly recommend verifying your engine’s serial number and the existing piston part number to ensure it is the standard size (STD) version, not an oversize (OS) variant.

Q2: What is included in the kit, and what else do I need for a full rebuild?

A: This kit includes the piston, piston pin, and retaining clips (circlips). For a complete top-end overhaul, you will also need a set of piston rings, cylinder liners, and a head gasket set. We offer these as separate items to ensure you get the exact combination needed for your engine.

Q3: How should I measure the piston-to-liner clearance during installation?

A: For a standard size (STD) piston with a 114.0mm bore, the recommended clearance is typically between 0.10mm and 0.15mm. Use a bore gauge to measure the cylinder liner and a micrometer to measure the piston skirt. If the clearance exceeds 0.20mm, you may need to consider an oversize piston kit. Always consult your engine service manual for exact specifications.