Product Overview

This is a premium replacement water pump engineered for Yanmar industrial and machinery engines. Designed for global distribution, this critical cooling system component is supplied to major industrial markets worldwide, including North America, Europe, the Asia-Pacific region, and the Middle East. It ensures reliable engine temperature regulation for a wide range of heavy-duty applications.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal coolant flow.
• Enhanced Durability: Constructed with high-grade materials to withstand the demanding conditions of industrial and agricultural use.
• Reliable Performance: Ensures consistent engine cooling to prevent overheating, reduce wear, and maintain engine efficiency.
• Direct Replacement: Designed as a direct bolt-on replacement for the original part, simplifying maintenance and repair procedures.
• Global Compliance: Produced for international markets, meeting the quality and performance standards required by professional technicians worldwide.

Technical Specifications

OEM Cross-Reference

This water pump directly replaces the following OEM part numbers:

• Yanmar: 129107-42002
• Yanmar: 129150-42000

It is a direct equivalent designed to match the form, fit, and function of the original component.

Compatibility

This water pump is specifically designed for the following Yanmar engine series:

• Engine Models: 4TNA78, 4D82, 3TNE84, 4TNE84
• Typical Applications: These engines are commonly found in a variety of industrial machinery, including:
  • Agricultural Tractors and Equipment
  • Construction Machinery (e.g., Excavators, Loaders)
  • Industrial Generator Sets
  • Marine Auxiliary Engines

Note: Always verify your engine model and existing part number before purchase to ensure correct fitment.

Global Supply & Distribution

We are a dedicated B2B supplier with extensive experience in the international automotive and machinery parts trade. Our logistics network is optimized for efficient global delivery.

• Worldwide Shipping: We export to all major industrial regions, including North America (USA, Canada, Mexico), Europe (EU, UK), Asia-Pacific (Japan, Korea, Australia, Southeast Asia), the Middle East, and South America.
• Fast Delivery to Hubs: Priority shipping is available to major ports and industrial centers to minimize downtime for your operations.
• Trade Compliance: All exports are handled with proper documentation, including commercial invoices and certificates of origin, ensuring smooth customs clearance.

Quality Assurance

We partner with certified manufacturers to deliver parts that meet rigorous performance standards.

• Manufacturing Standards: Components are produced using precision tooling and quality-controlled processes to ensure dimensional accuracy and reliability.
• Performance Testing: Pumps undergo functional checks for seal integrity, bearing operation, and impeller balance.
• Warranty: This part is backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms applicable to your region.

FAQ

Q: How do I confirm this water pump fits my specific Yanmar engine?
A: The most reliable method is to cross-reference the part number currently installed on your engine. Match it with our listed OEM numbers (129107-42002 or 129150-42000) and verify your engine model (e.g., 4TNE84). If unsure, provide your engine’s serial number or model plate details for verification.

Q: Is this a complete assembly, and what is included?
A: Yes, this is typically supplied as a complete, ready-to-install water pump assembly. This includes the housing, impeller, bearing, seal, and pulley hub (if applicable). Gaskets or seals required for installation may be included or sold separately; please confirm the package contents at the time of order.

Q: What are the signs that my Yanmar engine’s water pump needs replacement?
A: Common indicators include coolant leakage from the pump’s weep hole, unusual grinding or whining noises from the front of the engine, engine overheating, and visible wobble or play in the pump pulley. Regular inspection during routine maintenance is recommended to prevent unexpected failure.

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 .