Product Overview

This is a high-quality piston ring set engineered for Mitsubishi excavator engines. Designed for durability and optimal compression, it is a critical component for engine rebuilds and maintenance. We supply this part globally to professional workshops, heavy equipment dealers, and distributors in key industrial markets worldwide, ensuring reliable performance in demanding conditions.

Key Features & Benefits

• Premium Material: Manufactured from high-grade alloy steel for superior heat resistance and reduced wear.
• Precision Engineering: Ensures perfect cylinder sealing to maintain engine compression and power output.
• Reduced Oil Consumption: Optimized ring design minimizes oil passage, promoting efficient lubrication and lower emissions.
• Extended Engine Life: Protects cylinder walls from scoring and reduces blow-by, contributing to longer service intervals.
• Direct OEM Replacement: Manufactured to original specifications for guaranteed fit and function.

Technical Specifications

OEM Cross-Reference

This piston ring set directly replaces the following OEM part numbers:

• NPR: S6K
• Mitsubishi: S6KT
• Alternative Part #: YDM30108ZX

Compatibility

This piston ring is designed for specific Mitsubishi excavator engines utilizing the S6K/S6KT piston configuration. It is crucial to verify the engine model and existing part number before purchase. Typically compatible with select Mitsubishi excavator models from the late 1990s to early 2000s.

Global Supply & Distribution

We are a leading supplier of heavy-duty engine components with a robust international logistics network. We serve B2B clients across all major regions:

• North America: Fast shipping to USA and Canada via major ports (LA, Long Beach, Vancouver).
• Europe: Efficient delivery to EU hubs including Rotterdam, Antwerp, and Hamburg.
• Asia-Pacific: Strong supply chain to Singapore, Shanghai, Sydney, and Tokyo.
• Middle East & Africa: Reliable export to Jebel Ali (UAE), Dammam, and Durban.

We handle all export documentation, customs clearance, and compliance for seamless international trade. Bulk and container orders are welcome.

Quality Assurance

Every component is produced under strict quality control protocols to meet or exceed industry standards.

• Manufacturing Standards: ISO-certified production processes.
• Testing: Dimensional accuracy checks, material hardness testing, and performance validation.
• Warranty: Backed by a standard warranty against manufacturing defects. Contact us for specific warranty terms.

FAQ

Q1: How do I confirm this piston ring set fits my Mitsubishi engine?
A1: The surest method is to match the part number. Please check your existing piston ring or engine documentation for the numbers YDM30108ZX, S6K, or S6KT. You can also provide your excavator model and engine serial number for our technical team to verify.

Q2: Is this a full set for one piston?
A2: Yes, this listing is for one complete piston ring set, which includes all necessary compression and oil control rings required for a single piston.

Q3: What are the installation tips for these rings?
A3: Always ensure the cylinder bore is within specification, clean, and properly honed. Use a ring expander tool for installation to avoid damaging the rings. Stagger the ring end gaps according to the engine manufacturer’s specifications (typically 120 degrees apart) for optimal sealing.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .