S6R2 Piston Ring Set for Mitsubishi Diesel Engines – Replacement

Product Details

Product Overview

This high-quality piston ring set is specifically designed for the Mitsubishi S6R2 diesel engine, a powerful and reliable powerplant commonly found in heavy-duty construction, industrial, agricultural, genset, marine, and material handling equipment. Manufactured by, a trusted aftermarket supplier, this piston ring kit provides a direct replacement solution for engine overhaul and maintenance.

The piston rings are critical components that ensure proper compression, oil control, and heat transfer within the engine cylinder. Using a correctly specified ring set is essential for restoring engine performance, reducing oil consumption, and extending the service life of your Mitsubishi S6R2 engine. This product is engineered to meet or exceed OEM specifications, offering a cost-effective alternative without compromising on quality or fitment.

Key Features & Benefits

• Precision Engineered Fit: Manufactured to exact dimensional tolerances for the Mitsubishi S6R2 engine, ensuring a proper seal and optimal ring-to-groove clearance during installation.
• Durable Material Composition: Constructed from high-grade, wear-resistant materials (typically ductile iron or steel) to withstand high combustion pressures, temperatures, and friction within the diesel engine.
• Excellent Oil Control: The oil ring design effectively scrapes excess oil from the cylinder wall, returning it to the oil pan, which minimizes oil consumption and prevents carbon buildup.
• Enhanced Compression Seal: The compression rings are designed to provide a tight seal against the cylinder liner, maximizing combustion pressure for improved power output and fuel efficiency.
• Rigorous Quality Control: Each set undergoes outgoing inspection and is backed by a machinery test report, ensuring consistent quality and reliable performance in demanding applications.
• Cost-Effective Overhaul Solution: An ideal component for a complete engine rebuild kit, offering significant savings compared to genuine OEM parts while maintaining high reliability.
• Global Support: Backed by a 6-month warranty and online after-sales support for installation guidance and technical inquiries.

Technical Specifications

OEM Cross-Reference

This piston ring set is designed as a direct replacement for the Mitsubishi S6R2 engine. While specific OEM part numbers for the S6R2 ring set may vary by production series, this aftermarket part is engineered to match the original specifications. Common OEM references for Mitsubishi S6R2 piston rings typically follow a 31A**-***** pattern. Please verify your existing ring dimensions (diameter, thickness) and groove configuration against the original part to ensure compatibility.

Compatibility

This piston ring set is commonly used for the following applications powered by the Mitsubishi S6R2 diesel engine:

• Construction Equipment: Excavators, bulldozers, wheel loaders, and cranes.
• Industrial Machinery: Compressors, pumps, and generators.
• Agricultural Equipment: Tractors and harvesters.
• Power Generation: Genset applications.
• Marine Propulsion: Auxiliary and main engines in vessels.
• Material Handling: Forklifts and heavy-duty lift trucks.

Note: Always confirm your specific engine model and serial number before purchase. Cross-reference with your original piston ring set for dimensional accuracy.

Global Supply & Distribution

offers worldwide shipping capabilities to meet the needs of international B2B buyers. We serve major markets across:

• North America: Reliable delivery to ports and industrial centers in the USA, Canada, and Mexico.
• Europe: Fast shipping to major European ports (Rotterdam, Hamburg, Antwerp) and distribution hubs.
• Asia-Pacific: Direct supply to Australia, New Zealand, Southeast Asia, and Japan.
• Middle East & Africa: Efficient logistics to Dubai, Saudi Arabia, South Africa, and other key markets.
• South America: Service to Brazil, Argentina, Chile, and Colombia.

We have extensive export experience and can provide necessary documentation for international trade compliance. Bulk orders and customized packaging solutions are available for B2B partners.

Quality Assurance

All piston rings are manufactured under strict quality control standards in ISO-certified facilities. Each ring set is inspected before shipment, with video outgoing inspection and machinery test reports available upon request. The product is backed by a 6-month warranty against manufacturing defects. Our team provides online after-sales support to assist with technical questions and installation guidance.

FAQ

Q1: Will this piston ring set fit my specific Mitsubishi S6R2 engine variant?

This ring set is designed for the standard S6R2 engine model. However, due to potential variations in cylinder liner size and ring groove dimensions across different production years or sub-models (e.g., S6R2-Y, S6R2-T), we strongly recommend comparing the ring diameter, thickness, and profile with your original rings. Contact our support team with your engine serial number for fitment verification.

Q2: What is the recommended installation procedure for these piston rings?

Proper installation is critical. We recommend using a piston ring expander tool to avoid damaging the rings. Ensure the cylinder bore is clean, honed to the correct finish, and within service limits. Stagger the ring end gaps according to the engine manufacturer’s specifications (typically 120 degrees apart for three-ring sets). Lubricate the rings and piston with clean engine oil before assembly.

Q3: How do I check the ring end gap for this set?

Before installation, insert each ring individually into the cylinder bore (using a piston to square it). Use a feeler gauge to measure the end gap. The gap should fall within the range specified by Mitsubishi for the S6R2 (typically 0.3mm to 0.5mm for top compression rings, but verify with your service manual). An incorrect gap can lead to ring breakage (too tight) or blow-by (too loose).