Product Overview

This high-precision Fuel Injection Pump Plunger & Barrel Assembly (OEM: 1418425112 / 1425-112) is a critical component for diesel engine fuel systems. Manufactured to OE specifications, this element plunger ensures optimal fuel metering and injection pressure. We ship globally to markets including North America, Europe, Southeast Asia, the Middle East, and South America, supporting heavy equipment, agricultural machinery, and commercial vehicle fleets.

Key Features & Benefits

• Precision Engineering: Machined to standard size tolerances for a perfect fit and reliable fuel delivery.
• Durable Construction: Made from high-grade alloy steel to withstand extreme pressures and wear.
• 100% Tested: Every unit undergoes professional testing to ensure leak-free operation and consistent performance.
• Direct Replacement: Designed for easy installation as a direct swap for worn or failed OE parts.
• Cost-Effective Solution: Offers a reliable alternative to expensive OEM parts without compromising on quality.

Technical Specifications

OEM Cross-Reference

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

• 1 418 425 112 (Bosch-style numbering)
• 1418425112 (OEM numeric code)
• 1425-112 (Alternate reference)

Compatibility

This component is specifically designed for use in diesel fuel injection pumps found in various heavy-duty applications. While the specific engine model is often generic to “diesel engines,” this part commonly fits inline fuel injection pumps used in:

• Industrial diesel engines
• Agricultural tractors and harvesters
• Construction equipment (excavators, loaders)
• Marine diesel engines
• Generator sets

Note: Please verify your pump model and existing part number to ensure compatibility before purchase.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components based in Shandong, China, with a strong focus on international B2B trade. Our logistics network ensures fast and reliable delivery to major ports and industrial hubs worldwide, including Rotterdam, Los Angeles, Dubai, Singapore, and Shanghai. We serve a diverse range of clients from North America, Europe, Asia-Pacific, and the Middle East, offering flexible shipping options (FOB, CIF, DDP) to meet your procurement needs. Our export experience ensures smooth customs clearance and compliance with international trade standards.

Quality Assurance

• Manufacturing Standard: Produced under strict quality control procedures to match or exceed OE performance.
• Testing: Each plunger and barrel assembly is 100% professionally tested for dimensional accuracy, surface finish, and hydraulic performance.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Service: Our team provides professional pre-sales and after-sales technical support to ensure your satisfaction.

FAQ

1. How do I know if this plunger assembly (1418425112) is the correct replacement for my pump?

We highly recommend checking the existing part number stamped on your old plunger or barrel. If it matches 1418425112, 1 418 425 112, or 1425-112, this is the correct direct replacement. Also, measure the diameter and length to confirm it matches your pump’s specification (standard size). If you are unsure, please contact us with your pump model and engine details for verification.

2. What is the typical lifespan of this plunger and barrel element?

The lifespan depends heavily on fuel quality, operating conditions, and maintenance. In a well-maintained diesel engine with clean fuel and proper filtration, a high-quality plunger and barrel set can last for several thousand hours of operation. Regular inspection of the injection pump is recommended to prevent performance degradation.

3. Can I install this part myself, or do I need a professional?

Replacing a plunger and barrel assembly requires a high level of mechanical precision. The installation involves disassembling the fuel injection pump, cleaning the housing, and carefully fitting the new element with correct clearances. We strongly recommend that installation be performed by a qualified diesel injection technician to ensure proper calibration and prevent damage to the pump or engine.