Product Overview

This high-performance Diesel Injection Pump Plunger A174 is a critical fuel system component designed for precise fuel delivery in heavy-duty diesel engines. Manufactured to OEM specifications (OEM Number: 131152-4520), this plunger element ensures optimal engine performance and fuel efficiency. We are a leading global supplier of diesel engine parts, shipping worldwide to major markets including North America, Europe, Southeast Asia, the Middle East, and Africa. With a strong focus on B2B distribution, we provide reliable supply chain solutions for workshops, dealerships, and industrial equipment fleets.

Key Features & Benefits

• Premium Material: Constructed from high-speed steel for exceptional wear resistance and extended service life under high-pressure injection conditions.
• 100% Professional Tested: Each plunger undergoes rigorous quality inspection to ensure precise dimensions, surface finish, and hydraulic performance.
• OEM Standard Replacement: Directly replaces the original part number 131152-4520, ensuring seamless fitment and original equipment performance.
• Enhanced Fuel Economy: Precision-machined plunger and barrel assembly guarantees accurate fuel metering, reducing consumption and emissions.
• Reliable Performance: Designed to withstand the extreme pressures and temperatures of modern diesel injection systems, minimizing downtime.

Technical Specifications

OEM Cross-Reference

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

• 131152-4520 (Primary OEM Number)
• A174 (Model Number / Alternative Part Number)

Note: This part is specifically designed for the 131152-4520 specification. Always verify your existing part number before purchase.

Compatibility

• Engine Model: Komatsu 4D95L (Diesel Engine)
• Vehicle Application: Komatsu PC90 Excavator
• Fuel System: Diesel Injection Pump (A Series Plunger)
• Year Range: Compatible with all model years of the PC90 using the 4D95L engine.

Global Supply & Distribution

We offer comprehensive worldwide shipping to support your B2B operations:

• Shipping Capabilities: Express (DHL, FedEx, UPS), Air Freight, and Sea Freight to all major global ports.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Japan, South Korea, Australia, Singapore), Middle East (UAE, Saudi Arabia, Qatar), Africa (South Africa, Nigeria, Kenya), and South America (Brazil, Chile, Peru).
• Fast Delivery: Stock items ship within 3-7 business days to industrial centers and ports worldwide.
• Export Expertise: Experienced in international trade compliance, including customs documentation and export packaging for safe transit.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities in Shandong, China, adhering to strict quality control processes.
• Warranty: Backed by a 1-year warranty against manufacturing defects.
• Testing: Each plunger element undergoes 100% professional testing for dimensional accuracy, surface hardness, and hydraulic leakage performance before shipment.

FAQ

Q1: Is this plunger element a direct fit for my Komatsu PC90 excavator?
A1: Yes, this A174 plunger with OEM number 131152-4520 is specifically designed for the Komatsu 4D95L diesel engine used in the PC90 excavator. It is a direct, drop-in replacement for the original part. Always verify your engine model (4D95L) and existing part number to ensure compatibility.

Q2: What is the recommended installation procedure?
A2: Installation should be performed by a qualified diesel mechanic. The plunger must be installed into the injection pump barrel with extreme cleanliness to prevent contamination. Ensure the plunger is lubricated with clean diesel fuel during assembly. Torque specifications for the pump head must be followed precisely. We recommend consulting the Komatsu service manual for the 4D95L engine.

Q3: How can I maintain this plunger element for a longer service life?
A3: Use high-quality, clean diesel fuel and replace fuel filters at recommended intervals. Avoid running the engine with contaminated fuel or water in the system. Regularly inspect the injection pump for wear. If you notice performance issues like hard starting, misfiring, or black smoke, have the pump and plunger inspected by a professional.