Product Overview

This high-pressure fuel injection plunger, model A722 (OEM 131153-4320), is a precision-engineered replacement component specifically designed for Mitsubishi 6D16 diesel engines. Manufactured in Shandong, China, this plunger is a critical part of the fuel injection system, ensuring accurate fuel metering and atomization for optimal engine performance and fuel efficiency. We export globally, serving major markets in North America, Europe, Southeast Asia, the Middle East, and Africa, offering reliable supply chains for B2B clients.

Key Features & Benefits

• Precision Engineering: Machined to standard specifications for a perfect, drop-in fit on Mitsubishi 6D16 engines, ensuring seamless replacement and minimal downtime.
• High-Quality Material: Constructed from durable, wear-resistant alloy steel to withstand the extreme pressures within the fuel injection system, extending service life.
• Enhanced Performance: Restores original fuel injection pressure and timing, leading to smoother engine operation, reduced fuel consumption, and lower emissions.
• Rigorous Testing: Each unit is tested for dimensional accuracy, surface finish, and pressure integrity to meet or exceed OEM performance standards.
• Cost-Effective Solution: Offers a high-quality alternative to OEM parts without compromising reliability, providing significant savings for fleet maintenance and repair shops.

Technical Specifications

OEM Cross-Reference

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

• OEM: A722
• OEM: 131153-4320
• Alternative: 1311534320

Note: Always verify your existing part number to ensure compatibility. This cross-reference is a guide; physical comparison is recommended for critical applications.

Compatibility

• Primary Engine: Mitsubishi 6D16
• Vehicle Applications: Commonly used in Mitsubishi heavy-duty trucks, buses, and construction machinery (e.g., excavators, loaders) equipped with the 6D16 engine.
• System: Designed for use in in-line fuel injection pumps.

Global Supply & Distribution

We specialize in efficient international logistics to support B2B operations worldwide.

• Shipping Partners: DHL, FedEx, EMS, TNT, and UPS for fast and reliable delivery.
• Delivery Time: 3-7 business days for in-stock items.
• Major Markets: We actively serve the USA, Canada, Germany, UK, France, Australia, Japan, South Korea, UAE, Saudi Arabia, and Singapore.
• Ports & Hubs: Efficient dispatch to major ports and industrial centers including Los Angeles, Rotterdam, Dubai, and Shanghai.
• Export Compliance: We adhere to international trade standards for hassle-free customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, ensuring consistent quality control.
• Warranty: Backed by a 6-month warranty against manufacturing defects in materials and workmanship.
• Testing: Each plunger undergoes rigorous inspection for dimensional accuracy, surface hardness, and pressure testing before shipment.
• Packaging: Securely packed in neutral packaging to prevent damage during transit.

FAQ

Q1: Is this plunger a direct fit for my Mitsubishi 6D16 engine injection pump?
Yes, the A722 (131153-4320) plunger is designed as a direct, standard-size replacement for the fuel injection pump on the Mitsubishi 6D16 engine. It matches the original OEM dimensions for a straightforward installation. However, we always recommend comparing it with your removed part to confirm compatibility.

Q2: What is the recommended installation procedure for this high-pressure plunger?
Installation requires precision. The plunger and barrel assembly must be kept perfectly clean. Lubricate with clean diesel fuel or assembly oil. It is crucial to follow the manufacturer’s service manual for your specific injection pump to ensure correct timing and clearance. We advise installation by a qualified diesel technician to avoid damage to the pump or engine.

Q3: How should I store this plunger if I am not installing it immediately?
Store the plunger in its original packaging in a cool, dry, and clean environment. Avoid exposure to moisture, dust, or extreme temperatures. The neutral packaging provides adequate protection to prevent corrosion and damage during storage. Do not remove the protective coating until the moment of installation.