Product Overview

This high-quality A-Type Plunger (Part Number: 9412038428) is a precision-engineered component designed for use in modern diesel fuel injection systems. Manufactured in Shandong, China, this part is produced to OE standards for reliable replacement and repair applications. Our global supply chain ensures fast, efficient shipping to major industrial hubs across North America, Europe, Asia-Pacific, and the Middle East, supporting B2B clients with consistent inventory and competitive lead times.

Key Features & Benefits

• Precision Engineering: Manufactured to strict OEM tolerances (standard size) for optimal fuel metering and injection pressure.
• High Durability: Constructed from hardened alloy steel to withstand extreme pressures and resist wear, extending service life.
• Direct Fitment: Designed as a direct replacement for part number 9412038428 (also known as 38428 or 9 412 038 428), ensuring a hassle-free installation.
• Reliable Performance: Restores engine power, reduces fuel consumption, and minimizes exhaust emissions by ensuring precise fuel delivery.
• Cost-Effective Solution: High-quality alternative to expensive dealer parts, offering exceptional value for fleet maintenance and repair shops.

Technical Specifications

OEM Cross-Reference

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

• Primary OEM: 9412038428
• Alternate Numbers: 9 412 038 428, 38428

Note: This part is designed as a high-quality aftermarket replacement. While it matches OEM specifications, it is not manufactured by the original vehicle brand.

Compatibility

This A-Type plunger is a standard component used within a variety of diesel fuel injection pumps. It is specifically designed for:

• Engine Type: Car and light-duty diesel engines utilizing A-Type injection pumps.
• Application: Replacement and repair of fuel injection systems where the OEM number 9412038428 is specified.

For specific engine model compatibility (e.g., 4HK1, 6WG1), please verify the part number on your existing plunger or consult your injection pump service manual.

Global Supply & Distribution

We are an experienced exporter of diesel engine components, serving a global B2B client base. Our logistics network ensures reliable and fast delivery:

• Worldwide Shipping: We ship via DHL, FedEx, EMS, TNT, and UPS, ensuring your order reaches any destination efficiently.
• Major Markets: We regularly supply parts to clients in North America (USA, Canada, Mexico), Europe (Germany, UK, France, Italy), Asia-Pacific (Japan, South Korea, Australia), and the Middle East (UAE, Saudi Arabia).
• Fast Delivery: Standard delivery time is 3-7 days for in-stock items. We offer express shipping to major ports and industrial centers.
• Trade Compliance: We handle all international documentation and customs procedures to ensure a smooth transaction.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, with strict quality control processes.
• Warranty: All parts are backed by a 6-month warranty against manufacturing defects.
• Testing: Each plunger is inspected for dimensional accuracy and surface finish to ensure it meets OE performance standards.
• Service: We provide 24-hour customer service to assist with technical inquiries, order tracking, and after-sales support.

FAQ

1. How do I confirm this plunger fits my injection pump?

First, visually inspect your existing plunger for any stamped numbers. The most critical identifier is the part number, which should be 9412038428 (or 38428). This plunger is a standard A-Type component. If your pump uses a different base type (e.g., P-Type, PE-Type), this part will not be compatible. We recommend measuring the diameter and length of your old plunger to confirm it matches the “Standard” size specification.

2. Is this an OEM part or an aftermarket replacement?

This is a high-quality aftermarket replacement part. It is manufactured to match the exact specifications of the OEM part number 9412038428. While it meets OE standards for quality and performance, it is not produced by the original vehicle’s manufacturer. This allows us to offer a more cost-effective solution without compromising on reliability.

3. What is the recommended installation procedure for this plunger?

Installation should be performed by a qualified diesel technician. The plunger and its matching barrel (delivery valve) are a matched set and should always be replaced together. Ensure the work area is extremely clean to prevent contamination. Lubricate the plunger with clean diesel fuel or assembly oil before installation. After installation, the injection pump must be properly timed and calibrated on a test bench to ensure correct fuel delivery and engine performance.