3TNA68 Piston with Pin, Height 65mm, Ring Grooves 1.5×1.5×3.5mm, 129901-22091 for Yanmar Engine

Product Details

Product Overview

This high-quality piston assembly, identified by part number 129901-22091, is specifically designed for the Yanmar 3TNA68 diesel engine. It is a critical component for maintaining compression and ensuring efficient combustion in your heavy-duty equipment. The piston features a precise compression height of 65mm and is configured with ring grooves sized at 1.5mm x 1.5mm x 3.5mm, matching OEM specifications for reliable performance.

Commonly used in a variety of industrial and agricultural machinery, including excavators, forklifts, bulldozers, and loaders, this piston is manufactured to meet the rigorous demands of continuous operation. It serves as a direct replacement for worn or damaged pistons, helping to restore engine power, reduce oil consumption, and prevent costly downtime.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications (65mm compression height, 1.5×1.5×3.5mm ring grooves) for a perfect fit in Yanmar 3TNA68 engines.
• Enhanced Durability: Constructed from high-strength aluminum alloy to withstand extreme combustion pressures and temperatures, ensuring a long service life.
• Optimal Performance: Restores engine compression, improves fuel efficiency, and reduces exhaust emissions by ensuring a proper seal within the cylinder.
• Reduced Friction: Precision-machined piston skirt and pin bore minimize friction against the cylinder wall and connecting rod, improving overall engine efficiency.
• Cost-Effective Solution: Offers a high-quality alternative to expensive OEM parts without compromising on fit or function, providing excellent value for maintenance budgets.
• Rigorous Quality Control: Each piston undergoes strict dimensional and material testing to guarantee reliability and consistency.
• Complete Assembly Ready: Includes piston pin and retaining clips for a straightforward installation process, saving time and labor costs.

Technical Specifications

OEM Cross-Reference

This piston assembly is a direct replacement for the following original equipment manufacturer (OEM) part numbers. Please verify your existing part number to ensure compatibility.

• Yanmar: 129901-22091

Compatibility

This part is specifically designed for use in engines and equipment equipped with the Yanmar 3TNA68 diesel engine. It is commonly used for maintenance and repair in the following applications:

• Engine Model: Yanmar 3TNA68
• Common Applications: Excavators, Forklifts, Bulldozers, Loaders, Trucks, Buses, and other industrial machinery.

Note: Fitment is based on the engine model specified. Always cross-reference your original part number before purchasing to ensure exact compatibility.

Global Supply & Distribution

We understand the critical nature of parts availability for your operations. We offer reliable worldwide shipping to ensure your equipment stays running, no matter where you are located.

• Major Markets Served: North America, Europe, Southeast Asia, Middle East, Africa, and South America.
• Shipping Capabilities: We ship via express (DHL, FedEx, UPS), air freight, and sea freight to major ports and industrial centers worldwide.
• Fast Delivery: Standard stock items are dispatched within 24-48 hours of order confirmation. Bulk orders are coordinated for the most efficient logistics.
• Trade Compliance: We have extensive experience in international trade documentation and customs clearance, ensuring a smooth transaction for our global clients.

Quality Assurance

We are committed to providing high-quality parts that meet or exceed OEM standards. Our quality control process ensures that every component is reliable and ready for installation.

• Manufacturing Standards: Parts are manufactured in ISO-certified facilities with strict adherence to quality management systems.
• Testing: Each batch undergoes dimensional inspection, material composition analysis, and performance testing. Machinery test reports and video outgoing inspections are available upon request.
• Warranty: This product is backed by a 6-month warranty against manufacturing defects in materials and workmanship.

FAQ

Q1: How can I confirm this piston fits my Yanmar engine?
A: To ensure a correct fit, please first check the engine model plate on your equipment. This piston is specifically designed for the Yanmar 3TNA68 engine. Secondly, verify your existing piston’s part number. If it matches 129901-22091, this is the correct replacement. We also recommend measuring the compression height (65mm) and ring groove configuration (1.5×1.5×3.5mm) for physical confirmation.

Q2: What is included in this piston assembly?
A: The assembly includes one complete piston, one piston pin, and two retaining clips (circlips). Please note that piston rings are sold separately unless otherwise specified. You will need to order the correct ring set (size 1.5mm x 1.5mm x 3.5mm) to complete the installation.

Q3: What are the key installation tips for this piston?
A: Key installation steps include: 1) Thoroughly clean the cylinder bore and piston before installation. 2) Lubricate the piston pin and small-end bushing of the connecting rod. 3) Use a piston ring compressor to install the piston assembly into the cylinder without damaging the rings. 4) Ensure the arrow or marking on the piston crown points towards the front of the engine. 5) Always replace piston rings and consider replacing cylinder liners and bearings during an overhaul for optimal performance.