3TNA68 Piston With Pin Height 65mm Ring 1.5×1.5×3.5mm 129901-22091 for Yanmar Engine Parts

Product Details

Product Overview

This high-quality piston assembly is specifically designed for the Yanmar 3TNA68 diesel engine, a common power unit found in compact excavators, forklifts, and other industrial machinery. The set includes the piston, pin, and rings, with a precise pin height of 65mm and ring groove dimensions of 1.5mm x 1.5mm x 3.5mm. The part number 129901-22091 is a direct cross-reference for this application, ensuring a proper fit for your engine rebuild or replacement needs.

Manufactured to OEM size specifications, this piston is a direct replacement component. It is ideal for maintenance and overhaul projects where restoring original engine performance is critical. The component is sourced from a reliable supply chain with a focus on dimensional accuracy and durability for heavy-duty applications.

Key Features & Benefits

• Precise Dimensional Accuracy: Manufactured to OEM specifications with a 65mm pin height and exact ring groove sizes (1.5×1.5×3.5mm) for a perfect fit in the 3TNA68 cylinder bore.
• Complete Assembly: Includes the piston, piston pin, and piston rings, providing a comprehensive solution for your engine rebuild.
• Verified Cross-Reference: Directly compatible with Yanmar part number 129901-22091, simplifying your parts identification process.
• Durable Construction: Built from high-strength materials to withstand the thermal and mechanical stresses of diesel combustion, ensuring long service life.
• Warranty & Testing Support: Backed by a 6-month warranty, with machinery test reports and video inspection available upon request to confirm quality.
• Cost-Effective Solution: Offers a competitive alternative to original manufacturer parts without compromising on fit or function.

Technical Specifications

OEM Cross-Reference

This piston assembly is a direct replacement for the following original equipment manufacturer part number:

• Yanmar: 129901-22091

Compatibility

This piston is specifically designed for the following engine and is commonly used for the applications listed below. Please verify your engine model before purchase.

• Engine: Yanmar 3TNA68
• Common Applications:
  • Excavators
  • Trucks
  • Forklifts
  • Bulldozers
  • Buses
  • Loaders
  • Other Industrial Machinery

Global Supply & Distribution

We offer worldwide shipping capabilities to support international B2B buyers. Our distribution network serves major markets including North America, Europe, Asia-Pacific, the Middle East, and Africa. We provide fast and reliable delivery to major ports and industrial centers globally. With established export experience and compliance with international trade standards, we ensure a smooth procurement process for our clients, from sample orders to bulk container shipments.

Quality Assurance

We are committed to delivering high-quality engine components. Our manufacturing process adheres to stringent quality control standards. Each piston assembly is produced to meet OEM dimensional and material specifications. We provide a 6-month warranty against manufacturing defects. To further ensure your confidence, machinery test reports and a video of the outgoing inspection are available upon request, allowing you to verify the product’s quality before it ships.

FAQ

Q: How can I confirm this piston will fit my Yanmar 3TNA68 engine?
A: Please verify your engine model is exactly “3TNA68”. The part number 129901-22091 is the primary cross-reference. Also, check that your original piston has a 65mm pin height and ring grooves measuring 1.5×1.5×3.5mm. Our technical specifications match these critical dimensions.

Q: Does this piston include all the necessary rings and the pin?
A: Yes, this listing is for a complete piston assembly. It includes the piston itself, the piston pin, and the set of piston rings (1.5mm, 1.5mm, and 3.5mm). It is ready for installation once you have confirmed the fitment.

Q: What is the recommended installation procedure for this piston?
A: Standard diesel engine rebuilding procedures apply. Ensure the cylinder bore is clean and within specification. Lubricate the piston, rings, and cylinder wall with clean engine oil during assembly. Use a proper ring compressor to install the piston into the bore without damaging the rings. Always refer to the official Yanmar service manual for your specific engine model for torque specifications and detailed instructions.