Piston 129001-22081 47mm Standard Combustion Chamber for Yanmar 3D88E-3 4D88E-3 3TNC88 4TNC88

Product Details

Product Overview

This high-quality piston assembly is engineered specifically for Yanmar industrial diesel engines, providing a direct replacement for OEM part number 129001-22081. Designed with a standard combustion chamber profile and a precise 47mm diameter, this piston is a critical component for maintaining compression and combustion efficiency in Yanmar 3D88E-3, 4D88E-3, 3TNC88, and 4TNC88 engine models.

Manufactured to OEM specifications, this piston ensures reliable performance in demanding applications such as construction equipment, agricultural machinery, industrial generators, marine propulsion, and material handling systems. The component undergoes rigorous quality control to guarantee dimensional accuracy, material integrity, and long service life under high-temperature, high-pressure operating conditions.

Whether you are performing a complete engine overhaul or replacing a damaged piston, this part offers a cost-effective solution without compromising on quality or fitment confidence. It is suitable for both OEM replacement and aftermarket maintenance requirements.

Key Features & Benefits

• Precision Engineering: Machined to exact OEM tolerances for seamless installation and optimal engine performance.
• Standard Combustion Chamber: Designed with a standard bowl profile to maintain proper fuel-air mixing and combustion efficiency.
• Durable Material Construction: Made from high-strength alloyed cast iron or aluminum alloy (per OEM specification), offering excellent wear resistance and thermal stability.
• Direct Fit Replacement: Identical dimensions (47mm diameter, pin bore, compression height) to the original Yanmar 129001-22081 piston.
• Comprehensive Compatibility: Covers multiple Yanmar engine families including 3D88E-3, 4D88E-3, 3TNC88, and 4TNC88 series.
• Wide Application Range: Suitable for construction, agriculture, industrial, marine, and generator set applications.
• Quality Tested: Each piston is inspected for dimensional accuracy, surface finish, and material composition before shipment.

Technical Specifications

OEM Cross-Reference

This piston is a direct replacement for the following OEM part numbers:

• Yanmar OEM: 129001-22081
• Yanmar Engine Series: 3D88E-3, 4D88E-3, 3TNC88, 4TNC88

Note: Always verify your engine’s specific model and serial number to ensure correct part selection. This cross-reference is based on manufacturer data and common application knowledge.

Compatibility

This piston is commonly used for the following Yanmar engine models and applications:

• Engine Models: 3D88E-3, 4D88E-3, 3TNC88, 4TNC88
• Typical Equipment Applications:
  • Construction: Mini excavators, compact loaders, backhoe loaders
  • Agriculture: Tractors, harvesters, tillers
  • Industrial: Generator sets, pumps, compressors
  • Marine: Small workboats, auxiliary engines
  • Material Handling: Forklifts, telehandlers

Important: This part is designed for standard bore engines. If your engine has been rebored, please select the appropriate oversize piston (0.25mm, 0.50mm, etc.).

Global Supply & Distribution

We offer worldwide shipping capabilities to support international B2B buyers, including:

• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy, Netherlands), Asia-Pacific (Japan, South Korea, Australia, Singapore, Indonesia), Middle East (UAE, Saudi Arabia, Qatar), Africa (South Africa, Nigeria, Kenya), and South America (Brazil, Argentina, Chile).
• Fast Delivery: Express shipping options available to major ports and industrial centers. Typical transit times: 3-7 days for air freight, 15-30 days for sea freight.
• Export Experience: Our team has extensive experience in international trade, including customs documentation, commercial invoices, and packaging compliance for global shipments.
• Bulk Orders: Volume discounts available for fleet maintenance, dealerships, and distributor partnerships.

Quality Assurance

We maintain strict quality control standards throughout the manufacturing and inspection process:

• Manufacturing Standards: Parts are produced in ISO 9001 certified facilities using precision casting and machining processes.
• Material Certification: Raw materials are sourced from approved suppliers and tested for chemical composition and mechanical properties.
• Dimensional Inspection: Each piston is 100% inspected for diameter, pin bore, ring groove dimensions, and compression height using calibrated instruments.
• Warranty: All pistons are backed by a 6-month warranty against manufacturing defects in materials and workmanship.
• Testing: Video outgoing inspection and machinery test reports are available upon request to verify product quality before shipment.

FAQ

Q1: How do I confirm this piston fits my Yanmar engine?
A: Verify your engine model number (e.g., 3D88E-3, 4TNC88) stamped on the engine nameplate. Also check the cylinder bore diameter to ensure it is still at standard size (47mm). If the engine has been previously rebored, you will need an oversize piston. The OEM part number 129001-22081 should be cross-referenced with your existing piston part number.

Q2: Does this piston come with piston rings and a pin?
A: This listing is for the piston assembly only. Piston rings and wrist pins are typically sold separately or as part of a complete overhaul kit. We recommend purchasing matching rings (oil ring, compression rings) and pin to ensure proper ring end gap and pin fitment. Please check with our sales team for complete kit options.

Q3: What maintenance should I perform when replacing a piston?
A: During piston replacement, we recommend the following: 1) Inspect the cylinder bore for wear, scoring, or out-of-round conditions. 2) Replace piston rings with new ones (never reuse old rings). 3) Check connecting rod for straightness and small-end bushing wear. 4) Clean oil passages and replace main bearings if high mileage. 5) Use proper torque specifications when tightening connecting rod bolts. Always refer to the Yanmar service manual for your specific engine model.