Product Overview

This high-quality fuel injection plunger, model A778 (OEM number 131153-9920 / 1311539920), is a precision-engineered component designed for reliable performance in diesel fuel injection systems. Manufactured to standard specifications, this plunger serves as a direct replacement or repair part for compatible car engines. We offer global shipping to major industrial centers worldwide, including North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring fast and reliable delivery to your doorstep.

Key Features & Benefits

• Precision Engineering: Manufactured to exacting standards for a perfect fit and optimal fuel metering.
• High Durability: Built with high-quality materials to withstand extreme pressures and temperatures within the injection pump.
• Reliable Performance: Ensures consistent fuel delivery, improving engine efficiency and reducing emissions.
• Cost-Effective Solution: A high-quality aftermarket alternative to expensive OEM parts, offering excellent value.
• Ready to Ship: In-stock inventory allows for a fast 3-7 day delivery time via major carriers.

Technical Specifications

OEM Cross-Reference

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

• Primary OEM: 131153-9920
• Alternate OEM: 1311539920
• Model Number: A778

Always verify your existing part number against the list above to ensure compatibility.

Compatibility

This high-pressure plunger is designed for use in the fuel injection system of standard car engines. It is a common replacement part for various diesel engine models that utilize the A778 or equivalent plunger. Please check your engine’s fuel injection pump specifications to confirm fitment before purchasing.

Global Supply & Distribution

We are an experienced exporter based in Shandong, China, with a robust supply chain serving the global B2B market. Our logistics network enables fast and reliable shipping to major ports and industrial zones worldwide, including:

• North America (USA, Canada, Mexico)
• Europe (Germany, UK, France, Italy, Netherlands)
• Asia-Pacific (Japan, South Korea, Australia, Singapore)
• Middle East (UAE, Saudi Arabia, Turkey)
• South America (Brazil, Argentina, Chile)

We offer flexible shipping options via DHL, FedEx, EMS, TNT, and UPS, with a standard delivery time of 3-7 days.

Quality Assurance

• Manufacturing Standards: Produced in a facility with strict quality control processes to ensure consistent product quality.
• Testing: Each plunger is inspected for dimensional accuracy and surface finish to guarantee reliable operation.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Customer Service: Our team provides 24-hour customer service to assist with your inquiries.

FAQ

Q: How do I verify if this A778 plunger fits my engine?
A: Please check the plunger part number on your existing injection pump. This part is a direct replacement for OEM numbers 131153-9920 and 1311539920. If your pump uses a different number, please contact us with your vehicle’s engine model and pump details for verification.

Q: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel mechanic. The plunger must be cleaned with diesel fuel before installation and handled with care to avoid scratches. Ensure the pump housing is clean and follow the manufacturer’s torque specifications when reassembling.

Q: What is the standard size of this plunger?
A: This is a standard-size plunger (A778). It is designed to meet the original equipment specifications for a direct, drop-in replacement. We do not recommend using it in pumps that require a different size or have been modified.