Product Overview

This high-quality fuel injection pump plunger is a critical component designed for CAT diesel engines. As a direct replacement for OEM numbers A831, A832, and A836, this plunger ensures precise fuel metering and reliable engine performance. We are a leading supplier in Shandong, China, providing global shipping to major markets including North America, Europe, Southeast Asia, the Middle East, and Africa. This product is ideal for B2B buyers, fleet operators, and workshops requiring durable, OEM-standard fuel system parts.

Key Features & Benefits

• Precision Engineering: Manufactured to exact OEM specifications for a perfect fit and optimal fuel injection timing.
• Superior Durability: Made from high-grade alloy steel with advanced heat treatment for exceptional wear resistance and long service life.
• Enhanced Performance: Ensures consistent fuel delivery, improving engine combustion efficiency and reducing emissions.
• Rigorous Testing: Every plunger undergoes strict quality control checks, including dimensional accuracy and pressure testing.
• Cost-Effective Solution: Direct replacement part that restores pump performance without the need for a full pump replacement.

Technical Specifications

OEM Cross-Reference

This plunger is a direct cross-reference for the following OEM part numbers:

• A831 (131150-4320)
• A832 (131150-4420)
• A836 (131150-4820)

Note: Please verify your existing part number before purchase. This part is designed to supersede or replace the listed OEM numbers.

Compatibility

• Engine Application: Designed for CAT diesel engines used in excavators, wheel loaders, and heavy machinery.
• Vehicle Models: Suitable for various CAT models requiring fuel injection pump plungers in the A831, A832, A836 series.
• System: Direct injection fuel pump systems.

Global Supply & Distribution

We pride ourselves on our efficient global logistics network. We can deliver to major ports and industrial centers worldwide.

• Shipping Partners: DHL, UPS, FedEx, EMS, TNT, and sea freight for bulk orders.
• Major Markets: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Japan, Korea, Australia), Middle East (UAE, Saudi Arabia), and Africa.
• Delivery Time: 3-35 days depending on order quantity and destination.
• Export Experience: We have extensive experience in international trade and customs documentation.

Quality Assurance

• Manufacturing Standards: Produced in a certified facility with strict adherence to ISO quality management systems.
• Testing: Each plunger is tested for dimensional tolerance, surface finish, and pressure integrity.
• Warranty: Backed by a 1-year warranty against manufacturing defects.
• Packaging: Secure neutral packaging to ensure the part arrives in perfect condition.

FAQ

Q: How do I confirm this plunger fits my CAT engine?
A: Please check the part number on your existing plunger or your fuel injection pump. If it matches A831, A832, or A836 (or the corresponding 131150- series numbers), this part is a direct replacement. If you are unsure, please provide us with your engine model or pump serial number for verification.

Q: What is the installation procedure for this plunger?
A: Installation should be performed by a qualified diesel technician. It involves disassembling the fuel injection pump, removing the old plunger and barrel, and installing the new unit with proper lubrication. It is critical to maintain absolute cleanliness during installation to prevent damage to the precision surfaces.

Q: What is the typical lifespan of this plunger?
A: The lifespan depends on fuel quality, maintenance schedule, and operating conditions. Under normal conditions with clean fuel and proper filtration, this high-quality plunger can last for several thousand hours of operation. Regular fuel system maintenance is recommended to maximize service life.

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 .