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.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .