Product Overview

This high-quality A758 high-pressure plunger is a direct replacement for the OEM part number 131153-7920 (also listed as 1311537920), designed specifically for Caterpillar (CAT) fuel injection systems. Manufactured to standard OEM specifications, this component is essential for maintaining precise fuel delivery and engine performance in heavy-duty diesel engines. We serve a global B2B clientele, with regular shipments to North America, Europe, Southeast Asia, the Middle East, and South America, ensuring fast and reliable delivery to major industrial centers worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured to exacting OEM standards (A758) for a perfect fit and reliable performance in CAT fuel injection pumps.
• High-Pressure Durability: Designed to withstand the extreme pressures of modern diesel injection systems, ensuring consistent fuel atomization and combustion efficiency.
• Enhanced Engine Performance: Restores original fuel delivery specifications, helping to improve horsepower, reduce fuel consumption, and minimize exhaust emissions.
• Corrosion & Wear Resistance: Constructed from premium-grade alloy steel with a hardened surface to resist wear, cavitation, and corrosion from diesel fuel.
• Rigorous Quality Control: Each plunger undergoes strict dimensional and pressure testing to guarantee 100% performance and reliability out of the box.

Technical Specifications

OEM Cross-Reference

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

• Primary OEM Number: 131153-7920
• Alternative OEM Number: 1311537920
• Model Reference: A758

Note: Please verify your existing part number against this list to ensure compatibility.

Compatibility

This high-pressure plunger is designed for use in Caterpillar (CAT) diesel fuel injection pumps. It is a standard replacement component for various CAT engine models that utilize the A758 plunger specification. Common applications include heavy equipment engines used in construction, mining, and agriculture. For specific engine model fitment, please cross-reference your original pump part number with the OEM numbers listed above.

Global Supply & Distribution

• Worldwide Shipping: We offer fast, reliable shipping via DHL, FedEx, EMS, TNT, and UPS.
• Major Markets Served: Our products are exported to North America (USA, Canada), Europe (Germany, UK, Netherlands), Asia-Pacific (Australia, Japan, Singapore), Middle East (UAE, Saudi Arabia), and Africa.
• Fast Delivery: Orders are processed within 24 hours. Standard delivery time is 3-7 working days to major international ports and industrial hubs.
• Trade Compliance: We have extensive experience in international B2B trade, supporting various payment methods (T/T, PayPal, Western Union) to facilitate smooth transactions.

Quality Assurance

• Manufacturing Standard: Produced in a certified ISO 9001 facility in Shandong, China, ensuring consistent quality control.
• Testing: Each plunger is individually tested for dimensional accuracy, surface hardness, and pressure integrity before packaging.
• Warranty: Backed by a 6-month warranty against manufacturing defects. Our 24-hour customer service team is ready to assist with any technical inquiries.

FAQ

Q1: How do I confirm that this A758 plunger fits my injection pump?
A: Please check the part number stamped on your original plunger or your pump’s service manual. If the number matches 131153-7920 or A758, this part is a direct fit. If you are unsure, contact our support team with your pump model and serial number for verification.

Q2: Can this plunger be installed individually, or is a matched set required?
A: While this plunger is sold as a single item, we strongly recommend replacing plungers in complete sets (e.g., all plungers in a multi-cylinder pump) and always replacing the corresponding barrel (delivery valve) to ensure balanced fuel delivery and prevent uneven wear. Please consult your mechanic for the best practice.

Q3: What is the typical lifespan of this high-pressure plunger under normal operating conditions?
A: Lifespan depends heavily on fuel quality, maintenance schedules, and operating environment. With clean fuel and proper filtration, this plunger can last 4,000 to 6,000 operating hours. We recommend inspecting the plunger during regular fuel pump service intervals to maximize engine 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 .