Product Overview

This high-precision Pump Plunger MW Series (Part No. 2455-122 / 2 418 455 122) is a critical fuel injection component designed for Mercedes-Benz diesel engines. Manufactured to strict OEM specifications, this element ensures optimal fuel metering and injection timing for enhanced engine performance and fuel economy. We export globally to over 50 countries, serving major markets in North America, Europe, Southeast Asia, and the Middle East with reliable, stock-ready inventory for quick dispatch to industrial centers and major ports worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from High-Speed Steel for superior wear resistance and longevity, ensuring consistent fuel delivery.
• 100% Professional Testing: Each plunger undergoes rigorous quality checks for dimensional accuracy and surface finish to guarantee perfect fitment and operation.
• Direct OEM Replacement: Matches the original Mercedes-Benz part number 2 418 455 122, eliminating fitment guesswork.
• Enhanced Performance: Restores injection pressure and atomization, reducing smoke and improving cold start behavior.
• Reliable Supply: Low MOQ (6 Pcs) with fast 3-7 day delivery for urgent maintenance needs.

Technical Specifications

OEM Cross-Reference

This product is a direct replacement for the following original manufacturer part numbers:

• Mercedes-Benz: 2 418 455 122
• Alternative Numbers: 2418455122, 2455-122, 2455/122

Note: This part is designed for MW series injection pumps. Always verify your pump model before ordering.

Compatibility

Engine Models: Suitable for Mercedes-Benz diesel engines equipped with MW series fuel injection pumps, commonly found in older commercial vehicles, agricultural machinery, and industrial power units.

Vehicle Applications: Compatible with various Mercedes-Benz trucks, buses, and off-highway equipment using inline fuel injection systems. For specific vehicle fitment, please cross-reference your existing part number or consult our technical team.

Global Supply & Distribution

We offer worldwide shipping with reliable logistics partners to ensure fast delivery to your doorstep or warehouse. Our distribution network covers:

• North America: Fast delivery to ports like Los Angeles, Houston, and New York.
• Europe: Regular shipments to Rotterdam, Hamburg, and Antwerp.
• Asia-Pacific: Direct shipping to Singapore, Dubai, and major Chinese ports.
• Middle East & Africa: Serving industrial centers in Jeddah, Durban, and Lagos.

We maintain a large inventory to support quick dispatch (3-7 days) and offer flexible payment terms (TT, Western Union, PayPal).

Quality Assurance

Our pump plungers are manufactured in ISO-certified facilities in Shandong, China, adhering to strict international quality standards. Each component is:

• Inspected for dimensional accuracy using CMM (Coordinate Measuring Machine).
• Surface hardness and finish tested for optimal wear resistance.
• Functionally tested to ensure leak-free performance under high pressure.

We stand behind our product with a 6-month warranty against manufacturing defects.

FAQ

Q: How do I confirm this plunger fits my injection pump?
A: Please verify your pump’s model designation (should be MW series) and cross-reference your existing plunger part number. The key OEM number is 2 418 455 122. If you have the old part, compare the dimensions and groove pattern.

Q: What is the installation procedure for this pump plunger?
A: Installation requires professional knowledge of diesel injection systems. The plunger must be carefully cleaned, lubricated with clean diesel fuel, and inserted into the pump barrel without forcing. Ensure the control sleeve and rack are correctly aligned. We recommend installation by a certified diesel mechanic.

Q: How should I store this part before installation?
A: Store the plunger in its original packaging in a clean, dry environment away from dust and moisture. Do not remove the protective coating until ready to install. Avoid exposure to extreme temperatures or corrosive chemicals.