Excavator Piston Ring YDM30108ZX for Mitsubishi S6K S6KT Engine 102mm

Product Details

Product Overview

This premium piston ring set, identified by part number YDM30108ZX, is specifically designed for the Mitsubishi S6K and S6KT diesel engine series. With a bore diameter of 102mm, this ring set is a critical component for maintaining compression, reducing oil consumption, and ensuring optimal engine performance in heavy-duty applications.

Commonly used in excavators and trucks, this genuine piston ring set is sourced from Japan, ensuring high manufacturing standards. It is a direct replacement part intended to restore your engine’s efficiency and longevity. Please verify your engine model (S6K or S6KT) and bore size (102mm) to confirm fitment before purchase.

Key Features & Benefits

• Genuine Quality: Manufactured as a genuine part, ensuring precise dimensions and material composition for a perfect seal and long service life.
• Engineered for Durability: Designed to withstand the high temperatures and pressures of heavy-duty diesel engines, providing “long-lasting parts” as specified.
• Optimized Oil Control: The ring profile is engineered to minimize oil consumption while maintaining a proper oil film for cylinder wall lubrication.
• Improved Compression: Restores engine compression, leading to better fuel efficiency, increased power output, and easier cold starts.
• Direct Fit Replacement: Matches the OEM specifications for the S6K and S6KT engine models, simplifying the installation process for mechanics.
• Reduced Downtime: Using a high-quality, genuine ring set reduces the risk of premature failure, keeping your excavator or truck operational.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the following OEM and reference numbers. Please confirm your specific engine model for compatibility.

• Main Part Number: YDM30108ZX
• Engine Series: Mitsubishi S6K, S6KT

Note: If your existing part number differs, please contact us with your engine model and bore size for verification.

Compatibility

This piston ring set is commonly used for the following applications:

• Engine Models: Mitsubishi S6K, S6KT
• Vehicle/Equipment Types: Excavators, Trucks, and other heavy machinery powered by the S6K/S6KT engine series.

Important Fitment Note: Fitment is inferred based on the engine model. Always verify your engine serial number and bore size (102mm) to ensure correct compatibility before installation.

Global Supply & Distribution

We provide worldwide shipping for this piston ring set, ensuring fast and reliable delivery to major industrial hubs. Our distribution network supports B2B buyers across key global markets:

• North America: Quick delivery to the USA, Canada, and Mexico via air and sea freight.
• Europe: Efficient logistics to the UK, Germany, France, and other EU nations.
• Asia-Pacific: Rapid service to Japan, Australia, South Korea, and Southeast Asia.
• Middle East & Africa: Reliable shipping to the UAE, Saudi Arabia, South Africa, and surrounding regions.

We have extensive experience in international export and comply with all trade regulations to ensure a smooth customs clearance process for your order.

Quality Assurance

This part is sourced as a genuine component from Japan, adhering to strict manufacturing standards. Each ring set undergoes quality checks to ensure it meets the required specifications for hardness, tension, and dimensional accuracy.

We back this product with a 3-month warranty against manufacturing defects. After the warranty period, we offer video technical support to assist with any installation or performance questions. Our commitment is to provide parts that ensure the long-lasting performance of your engine.

FAQ

Q: How do I confirm that this piston ring set (YDM30108ZX) fits my engine?
A: First, verify your engine model is a Mitsubishi S6K or S6KT. Second, measure the cylinder bore diameter to ensure it is exactly 102mm. If your engine has been rebored, you will need an oversized ring set. Please check your engine serial number and current bore size against our specifications before ordering.

Q: What is the proper installation procedure for these piston rings?
A: Installation requires careful attention. Ensure the cylinder bore is clean and honed to the correct finish. Use a piston ring expander to fit the rings onto the piston, taking care not to over-expand or twist them. Stagger the ring end gaps around the piston circumference (typically 120 degrees apart) to prevent gas blow-by. Always lubricate the rings and piston with clean engine oil before inserting the assembly into the bore.

Q: What should I do if my engine is consuming oil after installing new rings?
A: Oil consumption after a ring replacement can be due to several factors. First, ensure the ring end gaps are within the manufacturer’s specifications; too large a gap can cause blow-by, while too small a gap can cause ring butting and scuffing. Second, verify that the correct oil control ring (oil scraper ring) was installed with the expander spring properly seated. Finally, a proper break-in period is essential; avoid heavy loads for the first few hours of operation to allow the rings to seat correctly against the cylinder wall.