Product Overview

This high-precision Diesel Injection Pump Plunger Element, model A274, is a critical component for maintaining optimal fuel delivery in Isuzu diesel engines. Manufactured to meet or exceed OEM specifications, this plunger element (OEM 131154-3220 / 8970833340) is engineered for durability and consistent performance. We are a leading supplier based in Shandong, China, shipping globally to major industrial markets including North America, Europe, Southeast Asia, the Middle East, and South America.

Key Features & Benefits

• Premium Material: Constructed from High-Speed Steel for superior wear resistance and long service life.
• Precision Engineering: Standard size with tight tolerances ensures accurate fuel metering and injection timing for improved engine efficiency.
• 100% Tested Quality: Every unit undergoes rigorous professional testing to guarantee flawless operation and reliability.
• Direct Replacement: Designed as a direct OEM replacement for Isuzu 8970833340, ensuring a perfect fit and easy installation.
• Cost-Effective Solution: High-quality aftermarket alternative to expensive dealer parts, offering excellent value for fleet maintenance.

Technical Specifications

OEM Cross-Reference

This plunger element is a direct replacement for the following OEM part numbers:

• 131154-3220 (Original Manufacturer Number)
• 8970833340 (Isuzu Part Number)

Compatibility

This A274 plunger element is specifically designed for use in Isuzu diesel engines. It is commonly found in fuel injection pumps for the following engine series and applications:

• Engine Models: Isuzu 4HK1, 6HK1, 4JJ1, 6WG1 (and other industrial diesel engines using this plunger size)
• Vehicle Applications: DIESEL CAR, Trucks, Buses, Construction Machinery, and Industrial Generators.

Note: Please verify your existing part number (e.g., 131154-3220 or 8970833340) to confirm compatibility before purchasing.

Global Supply & Distribution

We are a reliable B2B partner with a robust supply chain capable of handling orders of all sizes. Our export capabilities ensure fast and secure delivery worldwide.

• Shipping Ports: Any major China port (Qingdao, Shanghai, Shenzhen, etc.).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Japan, Korea, Australia, Indonesia), Middle East (UAE, Saudi Arabia), Africa, and South America.
• Logistics: Fast delivery time of 3-7 days via express (DHL, FedEx, TNT) for small orders, or by sea freight for bulk orders.
• Supply Ability: 5000 pieces per month, ensuring consistent stock availability for large-scale buyers.

Quality Assurance

We are committed to delivering products that meet the highest industry standards. Our quality management system is certified under ISO 9001:2000 and TS 16949.

• Manufacturing Standards: All parts are produced in ISO/TS 16949 certified facilities.
• Testing: 100% professional testing is performed on each plunger element to verify dimensions, surface finish, and material integrity.
• Warranty: We offer a 1-year warranty against manufacturing defects, providing peace of mind for your business operations.

FAQ

Q1: Can this A274 plunger be used in a Bosch or Denso injection pump?
A: This plunger element (A274) is specifically designed for Isuzu engines and their proprietary injection pump systems. While the dimensions may appear standard, it is critical to match the plunger model (A274) and OE numbers (131154-3220 / 8970833340) to your specific pump. We do not recommend using it in non-Isuzu applications without cross-referencing the pump model.

Q2: What is the installation procedure for this plunger element?
A: Installation should be performed by a qualified diesel mechanic. The process involves disassembling the injection pump, cleaning the bore, and carefully inserting the new plunger. It is essential to lubricate the plunger with clean diesel fuel during installation and to ensure the timing marks are correctly aligned. We recommend replacing the delivery valve and seals simultaneously for optimal performance.

Q3: How can I be sure this part will fit my Isuzu engine?
A: Please check the existing part number on your current plunger. If it is 131154-3220 or 8970833340, this is a direct replacement. If you are unsure, please contact us with your engine model (e.g., 4HK1, 6HK1) and the serial number from your injection pump. Our technical team can verify compatibility for you.

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 .