3TN86 Piston Ring Set for Yanmar 3TN86 Diesel Engine | Excavator & Forklift Parts

Product Details

Product Overview

This high-quality 3TN86 Piston Ring Set is specifically designed for Yanmar 3TN86 diesel engines, a popular power unit commonly used in compact construction machinery and material handling equipment. As a critical component for maintaining engine compression and oil control, this piston ring set ensures optimal performance and longevity for your engine.

Manufactured under the brand, this piston ring set meets OEM size specifications and is engineered to restore engine efficiency. It is widely applied in machinery such as forklifts, excavators, loaders, bulldozers, trucks, and buses. While primarily designed for the Yanmar 3TN86 engine, please verify compatibility with your specific engine model and application before installation.

Each ring set is precision-manufactured to withstand high temperatures and pressures within the combustion chamber, providing a reliable seal between the piston and cylinder wall. This product is an ideal replacement for worn or damaged rings during engine overhaul or rebuild projects.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM specifications (OEM Size) for a perfect fit within Yanmar 3TN86 engine cylinders.
• Enhanced Compression: Restores proper cylinder compression, improving engine power output and fuel efficiency.
• Superior Oil Control: Effectively scrapes excess oil from cylinder walls, reducing oil consumption and preventing carbon buildup.
• Durable Material: Constructed from high-strength materials designed to resist wear, heat, and corrosion for extended service life.
• Complete Set: Includes all necessary rings (compression and oil rings) for a single piston, simplifying the ordering and installation process.
• Broad Application: Suitable for a wide range of equipment including forklifts, excavators, loaders, and trucks using the Yanmar 3TN86 diesel engine.
• Rigorous Quality Control: Each batch undergoes outgoing inspection and machinery test reporting to ensure consistent quality.

Technical Specifications

OEM Cross-Reference

This piston ring set is a direct replacement for the Yanmar 3TN86 engine. While specific OEM part numbers may vary by engine variant, the following cross-reference information is provided for identification:

• Yanmar Part Number: 119770-35120 (Reference – Please verify with your engine manual)
• Compatible With: Yanmar 3TN86, 3TN86E, 3TN86L, 3TN86R engine models
• Interchange Numbers: 3TN86-PR

Note: Always confirm the correct ring set for your specific engine model and serial number before purchasing.

Compatibility

This piston ring set is specifically designed for the Yanmar 3TN86 diesel engine. It is commonly used for the following applications:

• Forklifts: Toyota, TCM, Nissan, Komatsu, and other material handling equipment powered by Yanmar 3TN86 engines.
• Excavators: Mini excavators and compact excavators from Yanmar, Kubota, and other manufacturers using this engine.
• Loaders: Compact wheel loaders and skid steer loaders.
• Bulldozers: Small bulldozers and crawlers.
• Trucks & Buses: Light-duty trucks and buses with Yanmar 3TN86 power units.

Important Fitment Note: This product is intended for the Yanmar 3TN86 engine. Compatibility with other engines or modified applications is not guaranteed. Please verify your engine model.

Global Supply & Distribution

We provide worldwide shipping for all our engine parts, including this Yanmar 3TN86 piston ring set. Our logistics network ensures fast and reliable delivery to major industrial centers across the globe.

• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Japan, South Korea, Australia, Singapore), Middle East (UAE, Saudi Arabia), Africa, and South America.
• Shipping Options: Express (DHL, FedEx, UPS), Air Freight, and Sea Freight available. We offer fast dispatch from our warehouse in Guangdong, China.
• Export Experience: We have extensive experience in international trade, handling customs documentation, and ensuring compliance with import regulations for B2B shipments.
• Bulk Orders: Volume discounts and custom packaging available for wholesalers, distributors, and repair shops. Contact us for quotes.

Quality Assurance

We prioritize quality and reliability in every product we supply. This piston ring set undergoes strict quality control procedures to meet international standards.

• Manufacturing Standards: Produced in ISO-certified facilities with advanced machining and heat treatment processes.
• Testing: Each batch is subject to outgoing video inspection and machinery test reports to verify dimensional accuracy and material integrity.
• Warranty: Backed by a 6-month warranty against manufacturing defects. We stand behind our products for your peace of mind.
• Certifications: All parts are traceable and meet OEM specifications for performance and durability.

FAQ

Q1: How do I know if this piston ring set fits my Yanmar 3TN86 engine?
A: This set is designed specifically for the Yanmar 3TN86 diesel engine. To confirm fitment, check your engine model number (stamped on the engine block) and verify it matches “3TN86”. If your engine is a variant (e.g., 3TN86E or 3TN86L), it is likely compatible, but we recommend consulting your engine service manual for the correct ring size and part number.

Q2: What is included in the piston ring set?
A: The set includes all rings required for one piston, typically consisting of two compression rings (top and second) and one oil control ring assembly. For a full engine rebuild, you will need multiple sets (one per piston). The exact configuration matches OEM specifications for the Yanmar 3TN86.

Q3: Do I need to replace piston rings during an engine overhaul?
A: Yes, it is highly recommended to replace piston rings whenever you perform a major engine overhaul, especially if you are replacing cylinder liners or pistons. Worn rings can cause loss of compression, excessive oil consumption, and reduced engine power. Always install new rings with proper ring gap clearance as specified in the Yanmar service manual.