Product Overview

This high-quality A9 Pump Plunger (Part Number: 131101-9420) is a precision-engineered fuel injection component designed for a wide range of diesel engines in Hino, Nissan, and Isuzu vehicles. As a critical element of the A Series fuel injection pump, this plunger ensures precise fuel metering and injection timing for optimal engine performance and fuel efficiency. We supply this part to major markets worldwide, including North America, Europe, Southeast Asia, the Middle East, and South America, with fast shipping from our strategic location in Shandong, China.

Key Features & Benefits

• Premium Material: Manufactured from high-speed steel for exceptional wear resistance and long service life, even under high-pressure injection conditions.
• Precision Engineering: Machined to standard size specifications with tight tolerances, ensuring a perfect fit and reliable sealing within the pump barrel.
• 100% Professional Testing: Each plunger undergoes rigorous quality checks, including dimensional accuracy, surface finish, and pressure testing, to guarantee performance.
• OEM Quality Replacement: Directly replaces the original 131101-9420 part, restoring original engine power and fuel economy.
• Cost-Effective Solution: Offers a durable and reliable alternative to expensive dealer parts, reducing maintenance costs for fleet operators.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following OEM number(s):

• 131101-9420

This plunger is designed to meet or exceed the specifications of the original equipment manufacturer.

Compatibility

This A9 Pump Plunger is compatible with a wide range of engines and vehicle applications, including:

• Hino: DM100, EM100, and other models using A-series pumps.
• Isuzu: G190, C240, 4102BQ, 6D2, 611, 4BD1, 4BC2, 4BA1.
• Nissan: ED33, ND6, ND604, SD23, SD25T, SD2505, SD25, and other industrial/automotive diesel engines.
• Other: Suitable for various Japanese and Chinese diesel engines utilizing A-series fuel injection pump elements.

Global Supply & Distribution

We are a reliable global supplier of diesel engine parts, serving a diverse international clientele. Our distribution network ensures fast and efficient delivery to major ports and industrial centers worldwide.

• Worldwide Shipping: We ship from any major port in China to destinations across the globe.
• Major Markets Served: Our products are exported to North America, Europe, Southeast Asia, the Middle East, Africa, and South America.
• Fast Delivery: Standard delivery time is 3-7 days after order confirmation.
• Flexible Payment: We accept T/T, Western Union, and PayPal for your convenience.

Quality Assurance

Our manufacturing facility is certified under ISO 9001:2000 and TS 16949 standards, reflecting our commitment to quality control and continuous improvement. Each A9 pump plunger is individually tested to ensure it meets stringent performance criteria. We stand behind the durability of our product with a full 1-year warranty against manufacturing defects.

FAQ

Q1: How do I confirm if this A9 plunger (131101-9420) is the correct part for my engine?
A: Please verify your existing part number. This plunger is specifically for A-series injection pumps. Check the numbers stamped on your old plunger or consult your engine’s service manual. If you are unsure, please provide us with your engine model (e.g., Isuzu 4BD1, Hino DM100) and we can cross-reference it for you.

Q2: Is this a “matched set” (plunger and barrel), or is it just the plunger?
A: This listing is for the plunger element only. It is a precision component that must be matched to the correct barrel. We recommend replacing the plunger and barrel as a matched set for optimal performance and to prevent fuel leakage. Please check with our sales team if you require the complete plunger and barrel assembly.

Q3: What is the recommended maintenance interval for replacing the fuel injection pump plunger?
A: The replacement interval depends on fuel quality, operating hours, and engine load. As a general guideline, inspection is recommended every 2000-3000 hours of operation. Signs of wear include hard starting, loss of power, black smoke, and increased fuel consumption. Regular replacement of the fuel filter is crucial to extend the life of the plunger and injection pump.

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 .