Product Overview

This is a genuine Zexel fuel injection pump plunger, part number 131151-2720, designed for the A43 AD-type pump. Manufactured to the highest Japanese OEM standards, this critical component ensures precise fuel metering and reliable engine performance. We supply this part globally to major markets including North America, Europe, the Asia-Pacific region, and the Middle East, supporting the maintenance and repair of commercial and industrial diesel engines worldwide.

Key Features & Benefits

• Genuine OEM Quality: Direct replacement part manufactured to Zexel’s original specifications for guaranteed fit and performance.
• Superior Durability: Precision-engineered from high-grade materials to withstand extreme pressures and provide long service life, reducing downtime.
• Optimal Engine Performance: Ensures accurate fuel delivery for consistent power output, improved fuel efficiency, and lower emissions.
• Reliable Sourcing: Sourced directly from trusted manufacturers, providing B2B buyers with a secure and consistent supply chain for critical engine components.

Technical Specifications

OEM Cross-Reference

This genuine Zexel plunger is the original component for the listed part number. It is a direct replacement and is compatible with systems specifying the following:

• Primary Part Number: 131151-2720
• Alternate Number: 1311512720

Always verify the pump model and existing part number for correct application.

Compatibility

This plunger is designed specifically for the Zexel (Diesel Kiki) A43 series fuel injection pumps of the AD type. These pumps are commonly found on a wide range of medium and heavy-duty diesel engines from Japanese manufacturers, including but not limited to Hino, Isuzu, and Mitsubishi Fuso. It is critical to confirm the exact pump model (A43) and type (AD) before ordering.

Global Supply & Distribution

We are specialists in the international distribution of critical diesel engine components. Our logistics network ensures reliable delivery to key industrial and port cities globally.

• Worldwide Shipping: We export to all major markets, including the USA, Canada, Germany, UAE, Australia, Singapore, and South Africa.
• Fast Delivery: Consolidated air and sea freight options to major hubs ensure timely delivery for your maintenance schedules.
• Export Compliance: All shipments are handled with complete commercial documentation (Invoice, Packing List, Certificate of Origin) for smooth customs clearance.
• B2B Focus: We cater to wholesalers, engine rebuilders, fleet maintenance companies, and heavy equipment repair shops.

Quality Assurance

We guarantee the authenticity and quality of every part we supply.

• Manufacturing Standard: Produced in ISO-certified facilities to Zexel’s precise OEM engineering specifications.
• Verification: Each part is verified against original part numbers and specifications before dispatch.
• Warranty: Backed by a standard warranty against manufacturing defects. Please contact us for specific warranty terms.

FAQ

Q: How do I confirm this plunger is the correct part for my fuel injection pump?
A: The most reliable method is to match the part number stamped on your original plunger (131151-2720 or 1311512720). Secondly, confirm your pump is a Zexel A43 AD-type model. Cross-reference your engine model to verify the pump application.

Q: What is the importance of using a genuine Zexel plunger versus a aftermarket alternative?
A: The plunger and barrel are a precision-matched set critical for fuel pressure and timing. A genuine OEM plunger ensures the exact material hardness, dimensional tolerances, and surface finish required for proper sealing, longevity, and to prevent damage to the injection pump barrel.

Q: Do you provide technical support for installation?
A> While we supply the genuine component, the installation and calibration of fuel injection pump elements require specialized tools and expertise. We recommend the procedure be carried out by a qualified diesel fuel injection technician or rebuild shop to ensure proper performance and avoid costly pump 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 .