6LTAA9.3 Piston Ring 5267503 for Cummins Engine Parts Excavator Truck

Product Details

Product Overview

This premium Cummins 6LTAA9.3 Piston Ring, part number 5267503, is a direct replacement component engineered for heavy-duty diesel engines. Designed to meet OEM specifications, this piston ring set ensures optimal compression, oil control, and combustion efficiency in demanding applications such as excavators, trucks, loaders, and forklifts.

The 5267503 piston ring is manufactured to the exact dimensions of the original equipment, guaranteeing a precise fit within the cylinder bore. As a critical component for engine rebuilds and maintenance, this part is essential for restoring engine performance and extending service life in Cummins 6LTAA9.3 power units.

Whether you are servicing a construction excavator in the Middle East, a mining truck in South America, or a material handling forklift in Europe, this piston ring provides the reliability needed for continuous operation in harsh environments.

Key Features & Benefits

• Precision Engineering: Machined to OEM standard size and tolerances for direct bolt-on replacement without modification.
• Superior Wear Resistance: Constructed from high-grade alloy cast iron with advanced surface treatments to withstand extreme temperatures and friction.
• Optimal Oil Control: Specifically designed oil ring profile reduces oil consumption while maintaining proper cylinder wall lubrication.
• Enhanced Compression: Precision-ground compression rings ensure maximum cylinder sealing for improved power output and fuel efficiency.
• Durability Assurance: Tested for thermal stability and fatigue resistance to withstand the high-stress cycles of turbocharged diesel engines.
• Easy Identification: Laser-marked part number 5267503 for quick cross-referencing and inventory management.
• Complete Set: Includes all necessary rings (top compression, second compression, and oil ring) for a single cylinder or complete engine overhaul.

Technical Specifications

OEM Cross-Reference

This piston ring set directly replaces the following original equipment manufacturer numbers:

• Cummins OEM: 5267503, 5267504, 3970465
• Cross-Reference: 3803547, 3970466, 5280451

Note: Always verify your engine serial number and current ring dimensions before ordering. The 5267503 is the primary reference for 6LTAA9.3 applications.

Compatibility

Engine Applications:

• Cummins 6LTAA9.3 (6-cylinder, 8.9L, turbocharged diesel)

Common Equipment Applications:

• Construction: Excavators, Bulldozers, Loaders
• Material Handling: Forklifts, Telehandlers
• Transport: Heavy trucks, Buses
• Industrial: Generator sets, Compressors

Fitment is inferred based on original equipment specifications. Always confirm cylinder bore size and ring groove dimensions with your engine service manual.

Global Supply & Distribution

We maintain a robust global supply chain with inventory strategically located for rapid dispatch. Our distribution network supports:

• North America: Next-day air to major US ports (Los Angeles, Houston, New York) and Canadian hubs (Toronto, Vancouver).
• Europe: 3-5 day delivery to Rotterdam, Hamburg, Antwerp, and major industrial zones in Germany, France, and UK.
• Asia-Pacific: Express shipping from our Guangdong warehouse to Singapore, Dubai, Shanghai, and Sydney.
• Middle East & Africa: Weekly consolidated shipments to Jebel Ali (UAE), Dammam (Saudi Arabia), and Durban (South Africa).
• Latin America: Regular service to Santos (Brazil), Callao (Peru), and Manzanillo (Mexico).

All shipments include commercial invoices, packing lists, and full customs documentation. We support both FOB (Guangzhou/Shenzhen) and CIF terms for international buyers.

Quality Assurance

• Manufacturing Standard: ISO 9001:2015 certified production facility.
• Material Certification: Mill test reports available for each batch.
• Testing: 100% dimensional inspection using CMM (Coordinate Measuring Machine) and hardness testing per ASTM standards.
• Warranty: 6-month defect warranty covering material and workmanship. Claims supported with video outgoing inspection reports.
• Traceability: Each set has a lot number for full production history tracking.

FAQ

Q1: How do I verify this piston ring set fits my Cummins 6LTAA9.3 engine?
A: Verify your engine serial number (located on the cylinder block) and measure the cylinder bore diameter. The 5267503 rings are designed for a standard 100mm bore with a service limit of 100.12mm. If your engine has been overbored, you will require oversized rings (+0.25mm, +0.50mm). We recommend checking the original ring end gap for confirmation.

Q2: Can I install these rings without removing the engine from the equipment?
A: While in-frame piston ring replacement is possible on some 6LTAA9.3 applications (e.g., excavators with accessible engine compartments), we recommend removing the cylinder head and oil pan for proper cleaning of cylinder bore ridges and ring groove carbon deposits. Always hone the cylinder walls with a 400-grit flex-hone before installing new rings to ensure proper seating.

Q3: What is the expected service life after installing these rings?
A: Under normal operating conditions (proper oil change intervals, clean fuel, and correct operating temperature), these rings typically provide 6,000-8,000 hours of service life in construction equipment. For highway truck applications, expect 500,000-800,000 km before requiring attention. Performance depends heavily on air filter maintenance and avoiding dust ingestion.