3TNV82 3TNV82A Piston with Pin 71mm 40mm Combustion Chamber 119803-22080 for Yanmar Engine Parts

Product Details

Product Overview

This high-quality piston assembly is specifically designed for Yanmar 3TNV82 and 3TNV82A diesel engines, offering a direct replacement solution for a wide range of industrial and construction equipment. Featuring a 71mm diameter, 40mm compression height, and a precisely machined combustion chamber, this component is engineered to restore original engine performance and efficiency.

The piston comes pre-assembled with a piston pin, simplifying installation and ensuring proper alignment. It is commonly used in excavators, forklifts, bulldozers, loaders, and other heavy machinery powered by Yanmar’s reliable TNV series engines. While fitment is based on the specified engine models, we recommend verifying your existing part number against our OEM cross-reference list for guaranteed compatibility.

Key Features & Benefits

• Precision Engineering: Manufactured to strict OEM specifications with a 71mm bore size and 40mm compression height for accurate fit and optimal compression ratios.
• Integrated Combustion Chamber: The pre-formed combustion chamber (119803-22080 design) ensures proper fuel atomization and efficient burn, maximizing power output and fuel economy.
• Complete Assembly: Includes the piston and pin as a matched set, reducing installation time and eliminating the need for separate sourcing.
• Durable Construction: Built from high-strength aluminum alloy with reinforced ring lands to withstand the high temperatures and pressures of diesel combustion.
• OEM Cross-Reference Fit: Directly replaces part number 119803-22080, providing a reliable aftermarket alternative for Yanmar engine rebuilds.
• Rigorous Quality Control: Each piston undergoes dimensional inspection and surface finish verification to ensure consistent performance and long service life.

Technical Specifications

OEM Cross-Reference

This piston assembly is a direct replacement for the following Yanmar original equipment part numbers:

• Yanmar: 119803-22080
• Yanmar: 119803-22081 (Superseded/Alternative)

Note: While 119803-22080 is the primary reference, please confirm your engine’s specific serial number range for absolute compatibility.

Compatibility

This piston is designed for use in Yanmar 3TNV82 and 3TNV82A diesel engines. These engines are commonly used for powering the following equipment:

• Excavators: Mini to mid-size compact excavators
• Forklifts: Diesel-powered counterbalance forklifts
• Loaders: Skid steer loaders and compact track loaders
• Bulldozers: Small dozers and crawlers
• Agricultural Machinery: Generators, water pumps, and tillers
• Other: Industrial sweepers, aerial work platforms, and airport ground support equipment

Global Supply & Distribution

We maintain a robust global supply chain to serve B2B buyers across all major industrial regions. Our stock is strategically located in Guangdong and Guizhou, China, allowing for efficient logistics to:

• North America: Fast delivery to ports in Los Angeles, Houston, and New York, with inland distribution to Chicago, Toronto, and Monterrey.
• Europe: Regular shipments to Rotterdam, Hamburg, and Antwerp, covering the UK, Germany, France, and the Benelux region.
• Asia-Pacific: Same-day dispatch to Singapore, Tokyo, and Sydney, with strong coverage in Southeast Asia and Oceania.
• Middle East & Africa: Established routes to Dubai, Jeddah, and Durban for regional equipment rebuilders.
• South America: Frequent consolidation to Santos and Callao for markets in Brazil, Chile, and Argentina.

We offer flexible shipping options including air freight for urgent orders and sea freight for bulk purchases, with full customs documentation provided.

Quality Assurance

Every piston is manufactured under strict ISO 9001-compliant processes to ensure dimensional accuracy and material integrity. Our quality protocol includes:

• Incoming Material Inspection: Chemical composition analysis of aluminum alloy to meet OEM specifications.
• Dimensional Verification: All critical dimensions (diameter, height, pin bore) are checked using CMM (Coordinate Measuring Machine) equipment.
• Surface Finish Testing: Skirt and ring groove surfaces are inspected for optimal oil retention and wear resistance.
• Hardness Testing: Ensures the piston structure can withstand thermal and mechanical stress during operation.
• Video Inspection: Outgoing inspection reports and videos are provided upon request for full transparency.

The product is backed by a standard 6-month warranty against manufacturing defects, providing peace of mind for your engine rebuild projects.

FAQ

Q1: How can I confirm this piston fits my specific Yanmar engine?

First, check the engine model plate on your equipment. The model should read “3TNV82” or “3TNV82A”. Next, locate the existing piston part number (usually stamped on the piston crown). If it matches 119803-22080, this is a direct fit. If you have a different number, please contact our technical support team with your engine serial number for cross-referencing.

Q2: Do I need to replace the piston rings separately?

Yes. This product includes only the piston and pin. For a complete rebuild, we recommend purchasing a matching piston ring set (standard size 71mm) separately. Using new rings with a new piston is critical for achieving proper compression and oil control. Always check the cylinder bore for wear and hone if necessary before installation.

Q3: What is the installation procedure for this piston?

Installation should be performed by a qualified diesel mechanic. Key steps include: 1) Clean the cylinder bore thoroughly. 2) Lubricate the piston pin and connecting rod bushing. 3) Install the piston rings using a ring compressor, ensuring ring end gaps are staggered. 4) Carefully insert the piston into the bore, guiding the connecting rod. 5) Torque the connecting rod bolts to the manufacturer’s specifications (typically 30-35 Nm for 3TNV82 engines). Always consult the Yanmar service manual for your specific engine model.