Cummins 6L/6LT Diesel Engine Piston Ring Set 4955651 C5320276 C3928294 C3921919

Product Details

Product Overview

This premium piston ring set is specifically engineered for Cummins 6L and 6LT diesel engines, offering a direct replacement solution for heavy-duty applications. Designed to meet or exceed OEM specifications, this set includes multiple part numbers for versatile compatibility. Our supply chain ensures global shipping to major industrial markets, including North America, Europe, the Middle East, and Asia-Pacific, with fast delivery to ports and inland distribution centers.

Key Features & Benefits

• High Durability: Manufactured from high-grade alloy steel with advanced surface coating to resist wear and corrosion, extending engine service life.
• Precision Engineering: Each ring is precisely machined to exact tolerances for optimal compression, oil control, and reduced blow-by.
• Enhanced Performance: Designed to improve combustion efficiency and reduce friction, leading to better fuel economy and lower emissions.
• Cost-Effective: Direct OEM replacement at competitive pricing, eliminating the need for expensive dealer parts.
• Rigorous Testing: 100% quality inspected for dimensional accuracy and material integrity before shipment.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following OEM part numbers:

• Cummins OEM: 4955651, C5320276, C3928294, C3921919
• Alternative Numbers: May also be listed under 6L/6LT engine service kit references—always verify original part for fitment.

Compatibility

• Engine Models: Cummins 6L (6.7L inline-6), 6LT (6.7L turbocharged)
• Vehicle Applications: Heavy-duty trucks, buses, construction equipment (e.g., excavators, loaders), agricultural machinery, and generator sets.
• Year Range: Primarily used in engines manufactured from the early 2000s to present, depending on model variant.

Global Supply & Distribution

• Worldwide Shipping: Reliable logistics partners ensure delivery to over 50 countries.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Netherlands), Asia-Pacific (China, Australia, India, Singapore), Middle East (UAE, Saudi Arabia, Qatar), and Africa (South Africa, Nigeria).
• Fast Delivery: Stock shipped within 24-48 hours from regional warehouses; express options available for urgent orders.
• Export Expertise: Experienced in international trade with full documentation, customs clearance support, and compliance with ISO 9001 standards.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001:2015 certified facilities with strict quality control processes.
• Warranty: 12-month warranty against manufacturing defects under normal operating conditions.
• Testing: Each batch undergoes hardness testing, dimensional verification, and surface finish inspection to ensure reliability.

FAQ

Q1: Will this piston ring set fit my Cummins 6LT engine from a 2008 excavator?

Yes, this set is compatible with most Cummins 6L and 6LT engines used in excavators from the 2000s onward. However, always verify your engine serial number and original part number (4955651, C5320276, C3928294, or C3921919) to confirm fitment, as minor variations may exist across models.

Q2: What tools are required for installation?

Installation requires standard diesel engine tools, including a piston ring compressor, feeler gauge for ring end gap measurement, and torque wrench. We recommend professional installation by a certified mechanic to avoid damage. Always check ring gap clearance according to the engine service manual.

Q3: How do I maintain these piston rings for maximum lifespan?

Use high-quality engine oil meeting Cummins CES specifications, maintain proper oil change intervals, and avoid overloading the engine. Regular inspection of cylinder walls and piston condition during rebuilds will also help extend ring life. Our rings are designed for long service under normal conditions.