Product Overview

This is a genuine-quality Zexel fuel injector nozzle plunger, a critical component for maintaining optimal fuel injection pressure and spray pattern in diesel engines. We supply this precision-engineered part to B2B clients worldwide, with established distribution networks across North America, Europe, the Asia-Pacific region, and the Middle East, ensuring reliable performance for commercial and industrial applications.

Key Features & Benefits

• Precision Manufacturing: Engineered to exact OEM tolerances for a perfect fit and consistent fuel metering.
• Enhanced Durability: Manufactured from high-grade materials to withstand high-pressure cycles and resist wear, extending service life.
• Optimal Engine Performance: Ensures precise fuel delivery for maximum combustion efficiency, improved power output, and reduced emissions.
• Reliable Replacement: Direct replacement for worn or damaged plungers, restoring injector performance and preventing engine misfires or power loss.
• Quality Assurance: Each component undergoes rigorous inspection to meet strict performance and dimensional standards.

Technical Specifications

OEM Cross-Reference

This Zexel plunger is compatible with the following OEM part numbers:

• Zexel/Denso: 131154-4720
• Common Replacement: 9443610837

Note: Always verify part number compatibility with your specific injector model before installation.

Compatibility

This fuel injector plunger is designed for use in Zexel (Denso) A288 series fuel injection pumps and corresponding injectors. It is commonly found in a range of industrial and commercial diesel engines. For specific engine model and vehicle application confirmation, please cross-reference the part numbers above with your engine’s service documentation or consult with our technical team.

Global Supply & Distribution

We are a trusted global supplier of critical engine components. Our logistics network facilitates efficient worldwide shipping to major industrial hubs and ports, including those in Rotterdam, Los Angeles, Singapore, Dubai, and Hamburg. We have extensive experience in international export, ensuring all documentation and compliance requirements for smooth customs clearance are met. Bulk orders for distributors and workshops are our specialty.

Quality Assurance

Our components are sourced from certified manufacturers and subjected to stringent quality control checks. Each plunger is inspected for dimensional accuracy, surface finish, and material integrity. We stand behind the quality of our parts, offering warranties that support our B2B partners. Our commitment is to provide reliable parts that meet the demands of professional engine rebuilders and fleet maintenance operations.

FAQ

Q: How do I confirm this plunger is the correct part for my injector?
A: The most reliable method is to match the part numbers. Compare the numbers stamped on your original plunger (131154-4720 or 9443610837) and the injector model (A288) with the specifications listed above. When in doubt, provide the engine model and injector code to our support team for verification.

Q: What is the typical cause of plunger failure, and how does this replacement help?
A> Plunger failure is often due to wear from contaminated fuel, leading to loss of injection pressure and poor atomization. Replacing a worn plunger restores the precise clearance within the injector barrel, ensuring correct fuel pressure and spray pattern for efficient combustion and engine performance.

Q: Do you provide technical support for installation procedures?
A> Yes. While we supply the component, we can provide general guidance and reference material on fuel injector servicing. For specific installation torque values, calibration settings, and full rebuild procedures, we recommend consulting the official OEM service manual for the engine or injection pump model, as these are critical for proper operation.

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 .