
Product Overview
This is a genuine Zexel injection pump plunger and barrel assembly, a critical component for ensuring precise fuel metering and optimal engine performance. We supply this high-quality spare part to a global network of diesel engine rebuilders, fleet maintenance operations, and heavy equipment distributors. Our logistics are optimized for fast delivery to major industrial hubs across North America, Europe, the Middle East, and Asia-Pacific.
Key Features & Benefits
- Genuine Zexel Quality: Manufactured to original equipment specifications for perfect fitment and reliable performance.
- Precision Engineering: The plunger and barrel are precision-matched to ensure minimal fuel leakage and maintain correct injection pressure.
- Enhanced Durability: Made from high-grade materials to withstand high pressures and resist wear, extending the service life of the fuel injection pump.
- Restores Engine Performance: Corrects issues like poor fuel economy, loss of power, excessive smoke, or hard starting caused by a worn plunger and barrel set.
- Direct OEM Replacement: Designed as a direct interchange for the original part, ensuring seamless integration into Zexel A836 series injection pumps.
Technical Specifications
| Specification | Detail |
|---|---|
| Primary Part Number | 131150-4820 / 1311504820 |
| Zexel Part Number | 9 413 614 302 |
| Application | Zexel A836 Series Injection Pump |
| Component Type | Plunger and Barrel Assembly (Plunger Barrel) |
| Brand | Zexel (Genuine) |
| Condition | New |
OEM Cross-Reference
This genuine Zexel part is an exact replacement for the following OEM part numbers:
- Zexel: 131150-4820, 1311504820, 9 413 614 302
Always verify the part number stamped on your original component for confirmation.
Compatibility
This plunger and barrel assembly is designed specifically for use in Zexel A836 model rotary fuel injection pumps. These pumps are commonly found on a wide range of industrial and automotive diesel engines from manufacturers such as Isuzu, Hino, and others. It is crucial to verify the exact model of your injection pump (A836) before ordering.
Global Supply & Distribution
We are a leading B2B supplier of diesel fuel injection components with extensive export experience. We ensure smooth international shipping with full compliance documentation.
- Worldwide Shipping: Reliable air and sea freight to all major global markets.
- Key Regions Served: North America (USA, Canada, Mexico), European Union, United Kingdom, Australia, Southeast Asia, Middle East, and South America.
- Fast Delivery: Consolidated shipments to major ports and logistics centers for efficient local distribution.
- Trade Compliance: All shipments include accurate commercial invoices, packing lists, and harmonized system (HS) codes for customs clearance.
Quality Assurance
Every part is sourced to meet the highest industry standards.
- Manufacturing Standard: Produced under strict quality control systems to meet or exceed original Zexel specifications.
- Verification: Each part is verified for correct part number and inspected for surface integrity and freedom from defects prior to shipment.
- Warranty: 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 part is correct for my specific injection pump?
A: The most reliable method is to match the part number. Locate the identification tag or stamped numbers on your existing Zexel A836 pump and cross-reference the plunger/barrel part number with our listed numbers: 131150-4820, 1311504820, or 9 413 614 302.
Q: Is this a single plunger or the complete plunger and barrel assembly?
A> This part is a matched plunger and barrel assembly. The plunger and its barrel are precision-lapped together as a set and must be replaced as a unit to ensure proper sealing and performance. They are not sold separately.
Q: What are the symptoms of a failing injection pump plunger and barrel?
A: Common signs include difficulty starting, reduced engine power and acceleration, increased fuel consumption, excessive black or white exhaust smoke, and irregular engine idling. Replacing a worn assembly is a core part of a professional injection pump overhaul.
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 .