Product Overview

This high-quality fuel injection pump head rotor, identified by OEM number 129602-51741, is a critical component for Yanmar industrial diesel engines. Designed for precision fuel delivery, this part ensures optimal engine performance and reliability. We serve a global B2B clientele, with major markets in North America, Europe, Southeast Asia, and the Middle East, providing consistent supply and fast logistics to keep your operations running.

Key Features & Benefits

• Precision Engineering: Manufactured to strict OEM tolerances for perfect fitment and reliable fuel injection timing.
• Durable Construction: Built from hardened steel to withstand high-pressure operation and resist wear, extending service life.
• Direct Replacement: A seamless swap for the original part, minimizing downtime during repairs or overhauls.
• Performance Assurance: Restores engine power, fuel efficiency, and smooth operation in Yanmar 3TNV88 and 4TNV88 series engines.
• Rigorous Testing: Each unit is tested for hydraulic performance and dimensional accuracy before shipment.

Technical Specifications

OEM Cross-Reference

This head rotor is a direct cross-reference for the following OEM part numbers:

• Yanmar: 129602-51741
• Alternate Markings: 129602-51740, 129602-51750 (Please verify compatibility with your specific pump model)

Note: This part is designed for Yanmar’s rotary fuel injection pumps used in the listed engine models.

Compatibility

This head rotor is compatible with the following Yanmar industrial diesel engines:

• 3TNV88 Series: 3TNV88, 3TNV88-SA, 3TNV88-DSA
• 4TNV88 Series: 4TNV88, 4TNE88
• Other Models: 4TNV84

These engines are commonly found in compact excavators, generators, agricultural tractors, and industrial machinery worldwide.

Global Supply & Distribution

We offer reliable worldwide shipping to support your maintenance and repair needs:

• Shipping Partners: DHL, FedEx, EMS, UPS for fast, trackable delivery.
• Delivery Time: 3-7 business days from order confirmation.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Japan, South Korea, Australia), and the Middle East (UAE, Saudi Arabia).
• Ports & Hubs: Efficient shipping to major industrial centers and ports like Los Angeles, Rotterdam, Dubai, and Shanghai.
• Trade Compliance: Experienced in international export documentation and customs clearance.

Quality Assurance

• Manufacturing Standard: Produced in ISO-certified facilities in Shandong, China.
• Testing: 100% inspected for dimensional accuracy and pressure testing before packaging.
• Warranty: Covered by a 6-month warranty against manufacturing defects.
• Customer Service: 24-hour support to assist with fitment verification and technical inquiries.

FAQ

Q1: Is this head rotor a direct replacement for the original Yanmar 129602-51741 part?
A: Yes, this part is manufactured as a direct replacement. It matches the OEM specifications for fit, form, and function. We recommend comparing your old part physically to ensure compatibility with your specific pump housing.

Q2: What are common signs that this head rotor needs to be replaced?
A: Symptoms include hard starting, engine misfiring, black smoke from the exhaust, reduced power output, or fuel leaks around the injection pump. A worn head rotor can cause uneven fuel distribution to the cylinders.

Q3: Do you offer any installation guidance or technical support?
A: Yes, our 24-hour customer service team can provide basic installation tips and answer technical questions. However, we recommend that installation be performed by a qualified diesel mechanic, as improper handling of fuel injection components can lead to damage.