Product Overview

This is a genuine Zexel A44 series plunger nozzle, part number 131151-3220, designed as a direct replacement for the original component. Engineered and manufactured in Japan, this precision fuel injection part is essential for maintaining optimal engine performance and fuel efficiency in commercial diesel engines. We supply this high-quality component to B2B clients globally, with extensive experience serving major markets across North America, Europe, Asia-Pacific, and the Middle East.

Key Features & Benefits

• Genuine Zexel Quality: Manufactured to original equipment specifications, ensuring perfect fitment and reliable performance.
• Precision Engineering: Produced with exacting tolerances for consistent fuel metering and spray pattern, critical for combustion efficiency.
• Enhanced Durability: Made from high-grade materials to withstand high-pressure fuel injection cycles and prolong service life.
• Optimal Engine Performance: Restores factory-level power output, fuel economy, and reduces harmful emissions when replacing worn components.
• Direct OEM Replacement: Designed as a plug-and-play component, eliminating compatibility concerns and simplifying inventory management for workshops and distributors.

Technical Specifications

OEM Cross-Reference

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

• Primary Part Number: 131151-3220
• Alternative Number: 1311513220

Note: This component is commonly associated with the 6BD1 engine series. Always verify the specific part number against your engine’s service manual or existing component for exact compatibility.

Compatibility

This plunger nozzle is primarily designed for diesel engines utilizing the Zexel A44 fuel injection pump. A key application includes:

• Engine Model: Isuzu 6BD1 series diesel engines.

It is commonly used in a range of commercial vehicles and industrial machinery powered by this engine platform. We recommend confirming the engine model and existing part number before purchase to ensure correct application.

Global Supply & Distribution

We are a trusted supplier for international B2B partners, specializing in the export of genuine Japanese engine components.

• Worldwide Shipping: We ship to all major global markets via reliable air and sea freight partners.
• Key Markets Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, the Middle East, and South America.
• Efficient Logistics: Fast container and consolidated LCL shipments to major ports like Los Angeles, Rotterdam, Singapore, Dubai, and Sydney.
• Export Expertise: Full compliance with international trade documentation, including commercial invoices, packing lists, and certificates of origin.

Quality Assurance

Every part we supply meets the highest standards of quality and authenticity.

• Genuine Component: This is not an aftermarket imitation; it is a genuine Zexel part sourced through authorized channels.
• Manufacturing Standards: Produced in ISO-certified facilities adhering to strict Japanese manufacturing protocols.
• Rigorous Testing: Each plunger nozzle undergoes precision testing to ensure it meets original performance specifications for flow rate and pressure tolerance.
• Supplier Warranty: Backed by our comprehensive quality guarantee. Please contact us for specific warranty terms applicable to your region.

FAQ

Q1: Is this part a direct fit for my Isuzu 6BD1 engine?
A1: Yes, the Zexel 131151-3220 plunger nozzle is a genuine direct replacement part designed specifically for fuel injection pumps used on the Isuzu 6BD1 engine series. Always compare the part number stamped on your old component for absolute confirmation.

Q2: What is the difference between a plunger and nozzle assembly and this plunger pin/nozzle?
A2: This part is the critical internal plunger component within the fuel injection nozzle. It is the precision-mated part that creates the high pressure for fuel atomization. It is typically replaced as part of a fuel injection pump or nozzle overhaul to restore performance.

Q3: Do you provide technical support for installation?
A3: While we supply the genuine component, installation should be performed by a qualified diesel technician. Fuel injection systems are highly precise. We can provide basic specification sheets, but we recommend referring to the official engine service manual for detailed torque specs, calibration procedures, and timing instructions.

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 .