Product Overview

This Brand New Diesel Fuel Injection Pump (Part Number: 0445020509) is a high-quality Common Rail Pump designed specifically for Yanmar industrial diesel engines. As a direct replacement for OEM numbers 129A00-51000 and 0445020538, this pump ensures reliable fuel delivery and optimal engine performance. Sourced from our Shandong, China facility, we serve a global B2B clientele across North America, Europe, Southeast Asia, and the Middle East with fast shipping and competitive wholesale pricing.

Key Features & Benefits

• 100% Professional Tested: Every unit undergoes rigorous bench testing to guarantee pressure and flow specifications, ensuring plug-and-play installation.
• Precision Engineering: Manufactured to OEM standards for exact fitment and long service life, reducing downtime for your equipment.
• Enhanced Durability: Constructed with hardened steel components to withstand high-pressure common rail systems (up to 2000 bar).
• Direct Replacement: No modifications required; matches original Yanmar mounting points and electrical connections.
• Cost-Effective Solution: Offers a reliable alternative to expensive dealer parts with a 6-month warranty for peace of mind.

Technical Specifications

OEM Cross-Reference

This injection pump is a direct replacement for the following OEM and reference numbers:

• Yanmar OEM: 129A00-51000
• Bosch Reference: 0445020509 (Primary), 0445020538 (Superseded), 0445020540

Note: Always verify your existing pump’s part number before ordering to ensure compatibility.

Compatibility

This common rail pump is engineered for Yanmar industrial diesel engines used in various applications:

• Engine Models: 3TNV86, 3TNV88, 4TNV86, 4TNV88, 4TNV98
• Typical Applications: Excavators, Forklifts, Generators, Agricultural Tractors, and Construction Equipment.
• Vehicle Make: Designed for Diesel-powered machinery (not for on-road trucks).

Global Supply & Distribution

We are a leading B2B supplier of diesel engine components with a robust global logistics network:

• Shipping Speed: Orders processed within 24 hours; delivery time 3-7 days via DHL, FedEx, or air freight.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), and South America (Brazil, Chile).
• Port Delivery: Efficient shipping to major industrial hubs and ports like Los Angeles, Rotterdam, Shanghai, and Jebel Ali.
• Trade Compliance: Experienced in international export documentation and customs clearance.

Quality Assurance

• Manufacturing Standard: Produced in an ISO 9001 certified facility with strict quality control.
• Testing: Each pump is 100% tested for fuel pressure, flow rate, and leak prevention before shipment.
• Warranty: 6-month warranty against manufacturing defects. Claims supported by prompt after-sales service.

FAQ

Q1: Is this pump a direct fit for my Yanmar 4TNV98 engine?
A: Yes, this 0445020509 pump is specifically designed for the Yanmar 4TNV98 series. It matches the OEM mounting flange, drive shaft spline, and electrical connector. However, we recommend comparing your old pump’s part number to 129A00-51000 to confirm.

Q2: What is the difference between 0445020509 and 0445020538?
A: The 0445020538 is an older version that has been superseded by the 0445020509. The new version features updated internal seals and a more robust pressure regulator for improved reliability. Our pump replaces both numbers.

Q3: Can I install this pump myself, or do I need professional tools?
A: While the pump is a bolt-on replacement, common rail systems are high-pressure (critical for engine timing). We strongly advise installation by a certified diesel mechanic. The fuel system must be primed and air purged after installation. Also, ensure the engine’s high-pressure lines are clean to prevent debris 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 .