Product Overview

This high-precision Diesel Injection Pump Plunger Element (Model A775 / OEM 131153-9620) is a critical component for the fuel delivery system of heavy-duty excavators and industrial diesel engines. Designed to meet or exceed OEM specifications, this plunger ensures optimal fuel atomization, combustion efficiency, and engine power output. We are a leading supplier based in Shandong, China, serving a global network of B2B clients in North America, Europe, Southeast Asia, the Middle East, and South America. With a monthly supply capacity of 5,000 pieces and fast dispatch from any major Chinese port, we provide reliable inventory solutions for your aftermarket and maintenance needs.

Key Features & Benefits

• Superior Material: Manufactured from premium High-Speed Steel for exceptional wear resistance and longevity under high-pressure injection conditions.
• Precision Engineering: Standard size with tight tolerances ensures a perfect seal and consistent fuel delivery, reducing engine smoke and improving fuel economy.
• 100% Professional Tested: Every unit undergoes rigorous quality checks for dimensional accuracy, surface finish, and pressure performance to guarantee reliability.
• Direct Fitment: Designed as a direct replacement for the OEM part 131153-9620, ensuring a hassle-free installation without modifications.
• Cost-Effective Solution: Offers a high-quality alternative to the original manufacturer’s part, providing excellent value for fleet maintenance and repair shops.

Technical Specifications

OEM Cross-Reference

This plunger element is a direct replacement for the following OEM numbers. Please verify your existing part before ordering.

• OEM Number: 131153-9620
• Alternative Number: A775

Compatibility

This component is specifically designed for use in the following applications:

• Engine Models: Isuzu 6D16, Mitsubishi 6D16
• Vehicle/Equipment Models:
  • Komatsu Sk330, Sk300 Excavators
  • Other heavy equipment utilizing the Isuzu or Mitsubishi 6D16 diesel engine platform.

Global Supply & Distribution

We are a dedicated exporter with extensive experience in international logistics. Our distribution network ensures fast and reliable delivery to major global markets.

• Shipping Capability: Worldwide express (DHL, FedEx, TNT), air freight, and sea freight.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands), Asia-Pacific (Australia, Japan, Korea), Middle East (UAE, Saudi Arabia), Africa, and South America.
• Dispatch Ports: Any major China port (Qingdao, Shanghai, Shenzhen).
• Delivery Time: Typically 3-7 days for stock items via express; 15-30 days for bulk orders via sea.

Quality Assurance

• Manufacturing Standards: All products are manufactured in ISO-certified facilities, adhering to strict international quality control processes.
• Testing: Each plunger element is 100% professionally tested for dimensional accuracy, surface integrity, and pressure performance before packaging.
• Warranty: We offer a comprehensive 1-year warranty against manufacturing defects, ensuring your peace of mind.

FAQ

Q: How do I confirm this plunger element fits my pump?
A: Please check the part number stamped on your old plunger. It should match “A775” or “131153-9620”. This part is specifically designed for the injection pump on Isuzu/Mitsubishi 6D16 engines. If you are unsure, please contact us with your engine model and pump serial number for verification.

Q: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel mechanic. The plunger must be handled with extreme care to avoid scratches or contamination. Ensure the pump housing is perfectly clean. Lubricate the plunger with clean diesel fuel or assembly oil during installation. It is highly recommended to replace the delivery valve and other wear parts simultaneously for optimal performance.

Q: What is the typical lifespan of this plunger element?
A: The lifespan depends heavily on fuel quality and operating conditions. Under normal circumstances with clean, high-quality diesel fuel, this High-Speed Steel plunger can last for several thousand operating hours. Regular fuel filter changes are crucial to extending the life of the entire injection system.