Home Products Diesel Engine Parts Mitsubishi S4K S4KT S6K S6KT Piston Ring Set | OEM 4317-19011 5I7538 for Caterpillar

Diesel Engine Parts

Mitsubishi S4K S4KT S6K S6KT Piston Ring Set | OEM 4317-19011 5I7538 for Caterpillar

MOQ: 1pcs Price: Negotiable

Part No.: 4317-19011 (Mitsubishi) / 5I7538 (Caterpillar)
Engine Model: Mitsubishi S4K, S4KT, S6K, S6KT
Material: Top Ring: Chrome-plated Steel; Second Ring: Cast Iron; Oil Ring: Steel with Coil Spring
Warranty: 6 Months against manufacturing defects

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Product Details

For Mitsubishi Diesel Engine Repair Parts S4k S4kt S6k S6kt Piston Ring 4317-19011 5i7538 For Caterpillar 6 Month Warranty

Product Overview

This premium piston ring set is engineered for Mitsubishi S4K, S4KT, S6K, and S6KT diesel engines, offering a direct replacement solution for heavy-duty excavators and industrial machinery. As a critical component in the engine’s combustion chamber, these rings deliver exceptional compression control and oil regulation. Our products are exported globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and South America. We specialize in supplying aftermarket engine parts to construction, mining, and agricultural sectors worldwide.

Key Features & Benefits

High-Precision Manufacturing: Produced to OEM specifications using premium ductile iron and chrome-plated steel for superior wear resistance.
Enhanced Oil Control: Advanced ring profile design minimizes oil consumption while maintaining optimal cylinder wall lubrication.
Extended Service Life: Heat-treated and phosphate-coated to resist corrosion and thermal fatigue in high-stress environments.
Perfect Fitment: Precision-ground gaps and exact geometry ensure trouble-free installation without modifications.
Rigorous Quality Testing: 100% inspected for tension, gap clearance, and surface finish before packaging.

Technical Specifications

Specification	Details
Part Number	4317-19011 (Mitsubishi) / 5I7538 (Caterpillar)
Engine Models	Mitsubishi S4K, S4KT, S6K, S6KT
Ring Type	Top Compression, Second Compression, Oil Ring (3-piece set)
Material	Top Ring: Chrome-plated Steel; Second Ring: Cast Iron; Oil Ring: Steel with Coil Spring
Surface Treatment	Phosphate coating for break-in protection
Bore Diameter	105mm (Standard) – Oversize options available
Ring Width	3.0mm (Top) / 2.5mm (Second) / 4.0mm (Oil Ring)
Warranty	6 Months against manufacturing defects

OEM Cross-Reference

This piston ring set replaces the following original equipment manufacturer (OEM) numbers:

Mitsubishi: 4317-19011, 4317-19010, ME074176
Caterpillar: 5I7538, 5I-7538, 7E6892

Compatibility

Engine Models:

Mitsubishi S4K (Naturally Aspirated)
Mitsubishi S4KT (Turbocharged)
Mitsubishi S6K (Naturally Aspirated)
Mitsubishi S6KT (Turbocharged)

Vehicle/Equipment Applications:

Caterpillar Excavators (e.g., 320, 325, 330 series with Mitsubishi engines)
Mitsubishi Heavy Industries Forklifts and Loaders
Industrial generators and marine engines using S4K/S6K platforms

Global Supply & Distribution

We provide worldwide shipping with fast delivery to major ports and industrial centers including Houston, Rotterdam, Shanghai, Dubai, and Santos. Our distribution network covers:

North America: USA, Canada, Mexico – 5-7 day express delivery
Europe: Germany, UK, France, Netherlands – 7-10 day standard shipping
Asia-Pacific: China, Japan, Australia, Singapore – 5-8 day air freight
Middle East & Africa: UAE, Saudi Arabia, South Africa – 10-14 day sea freight
South America: Brazil, Chile, Argentina – 12-18 day sea freight

We have extensive export experience and comply with international trade regulations, offering flexible shipping options (DHL, FedEx, UPS, or ocean freight) with full customs documentation support.

Quality Assurance

Manufacturing Standards: Produced in ISO 9001:2015 certified facilities with strict quality control processes.
Certifications: Compliant with SAE J242 (Piston Ring) standards for dimensional accuracy and material properties.
Warranty: 6-month warranty against manufacturing defects, covering ring breakage, premature wear due to material flaws, or incorrect dimensions.
Testing: Each batch undergoes radial pressure distribution testing, thermal stability checks, and gap measurement verification.

FAQ

Q: Will this piston ring set fit my Caterpillar 320 excavator with a Mitsubishi S6K engine?
A: Yes, if your excavator is equipped with a Mitsubishi S6K (naturally aspirated) or S6KT (turbocharged) engine, this ring set is compatible. Please verify your engine model on the data plate (located on the valve cover or engine block). The OEM cross-reference number 5I7538 confirms fitment for Caterpillar models using these engines.

Q: Can I install these rings without removing the cylinder head?
A: No, proper installation requires removing the cylinder head and pistons. We recommend a complete engine overhaul kit for best results. Ensure the cylinder bore is deglazed or honed to the correct crosshatch pattern (60° angle) for optimal ring seating.

Q: What is the recommended break-in procedure for these rings?
A: After installation, run the engine at varying RPMs (1,500–2,200 RPM) for the first 1-2 hours under light load. Avoid prolonged idling or full-throttle operation initially. Use a high-quality diesel engine oil (API CI-4 or higher) and change it after the first 50 hours of operation to remove break-in debris.