Product Details
Product Overview
This high-quality A-type plunger, model A120 (OEM number 131152-0120 / 1311520120), is a critical component for diesel fuel injection systems. Designed for precision and durability, it serves as a direct replacement or repair part for various car and industrial diesel engines. Our components are manufactured in Shandong, China, and are exported globally to markets in North America, Europe, Asia-Pacific, the Middle East, and South America.
Key Features & Benefits
- High-Precision Engineering: Manufactured to standard OEM specifications (A120) for exact fitment and reliable fuel metering.
- Superior Durability: Constructed from high-grade alloy steel to withstand extreme pressures and wear within the fuel injection pump.
- Enhanced Engine Performance: Ensures optimal fuel atomization and injection timing, leading to improved combustion efficiency and reduced emissions.
- Stringent Quality Control: Undergoes rigorous testing for dimensional accuracy and surface finish before shipment.
- Cost-Effective Solution: Provides a reliable alternative to expensive OEM parts without compromising on performance.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Name | Plunger (A-Type) |
| Model Number | A120 |
| OEM Number | 131152-0120 / 1311520120 |
| Condition | New |
| Size | Standard |
| Application | Fuel Injection System |
| Material | High-Grade Alloy Steel |
| Warranty | 6 Months |
| MOQ | 10 Pieces |
| Packing | Neutral Package |
OEM Cross-Reference
This plunger directly replaces the following original equipment manufacturer (OEM) numbers:
- Primary OEM Number: 131152-0120
- Alternative Number: 1311520120
- Model Reference: A120
Compatibility
This A120 plunger is designed for use in diesel fuel injection pumps, commonly found in:
- Engine Applications: Various car, agricultural, and industrial diesel engines requiring A-type plungers.
- Vehicle Fitment: Compatible with a wide range of diesel-powered vehicles and machinery using the standard A120 plunger specification.
- Note: Always verify the physical dimensions and application of your specific pump before purchase.
Global Supply & Distribution
We provide efficient worldwide shipping solutions for B2B buyers. Our logistics network ensures fast and reliable delivery to major industrial hubs and ports globally.
- Shipping Partners: DHL, FedEx, EMS, TNT, UPS, and sea freight for bulk orders.
- Delivery Time: 3-7 days for express shipping; transit time varies for sea freight.
- Major Markets Served: USA, UK, Germany, France, Australia, UAE, Saudi Arabia, South Africa, Brazil, and across Southeast Asia.
- Export Experience: We have extensive experience in international trade, ensuring proper documentation and customs clearance.
Quality Assurance
We are committed to delivering high-quality products that meet the demands of the aftermarket.
- Manufacturing Standards: Parts are produced under strict quality control processes in ISO-certified facilities.
- Testing: Each batch is tested for dimensional accuracy, surface hardness, and pressure resistance.
- Warranty: All products come with a standard 6-month warranty against manufacturing defects.
- Customer Service: We offer 24-hour customer service to address any technical or logistical inquiries.
FAQ
1. How do I verify if the A120 plunger (131152-0120) fits my injection pump?
First, confirm the model number on your current plunger or pump. The “A120” designation is a standard size. If your existing part is stamped with A120 or the OEM number 131152-0120, this part is a direct replacement. For safety, measure the diameter and length of your existing plunger to match the standard dimensions.
2. What is the installation process for a high-pressure plunger?
Installation requires specialized knowledge of fuel injection systems. Ensure the pump housing and all components are scrupulously clean. Lubricate the new plunger with clean diesel fuel or assembly oil before insertion. It is critical to follow the manufacturer’s service manual for your specific pump model to ensure correct timing and clearance settings. Improper installation can lead to pump failure or engine damage.
3. How can I maximize the lifespan of this plunger?
Use high-quality, clean diesel fuel and replace your fuel filters regularly. Contaminated fuel is the primary cause of plunger wear and scoring. Ensure the fuel injection pump is properly lubricated. Adhering to regular maintenance schedules and using the correct viscosity of fuel will significantly extend the service life of the plunger and the entire pump assembly.
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 .
FAQ
Common Product Inquiry Questions
How can I confirm this part matches my engine or injector model?
Send the OEM number, engine model, application, or clear product photos. We will help verify the suitable part before quotation.
Can I ask for packing, shipping, and delivery details together?
Yes. You can combine product confirmation, quantity, destination, packing request, and shipment method in one inquiry so the quotation is more complete.
Why is price not displayed on the page?
This catalog is built for B2B inquiry. Final pricing depends on the confirmed part number, quantity, stock situation, and shipping destination.
What information helps you quote faster?
Please include the OEM number, engine model, quantity, destination country, and any packing or shipping preference. This usually speeds up matching and quotation.
Inquiry Desk
Send Product Inquiry
Use this form to ask for fitment, MOQ, delivery time, packing, and shipping support for this product.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.
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Quick Inquiry
A120 Plunger 131152-0120 High-Pressure Fuel Injection Pump Part for Diesel Engine
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- OEM number is included automatically when available.
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Inquiry Desk
Send Inquiry
Quick contact for this product. OEM number is attached automatically.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.