Product Overview

This high-precision HP3 Pump Plunger is a critical component for high-pressure common rail fuel injection systems. Designed to restore optimal fuel pressure and injection timing, it is a direct replacement for a wide range of Bosch HP3 injection pumps. Sourced from a leading Chinese manufacturer, this plunger is rigorously tested to meet OEM specifications. We offer global shipping to major industrial hubs, serving markets across North America, Europe, Southeast Asia, the Middle East, and South America.

Key Features & Benefits

• Premium Material: Manufactured from high-speed steel for exceptional wear resistance and long service life under extreme pressure.
• Precision Engineering: Ground to exact tolerances (OE No. 294090-0010, 294090-0390, 294090-0760) to ensure perfect sealing and consistent fuel delivery.
• 100% Professional Tested: Every unit is individually inspected for dimensional accuracy and surface finish to guarantee reliable performance.
• Cost-Effective Solution: A high-quality alternative to expensive OEM parts, providing excellent value for repair shops and fleet maintenance.
• Easy Installation: Direct bolt-in replacement for specified pump models, minimizing downtime for your equipment.

Technical Specifications

OEM Cross-Reference

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

• Primary Plunger Numbers: 294090-0010, 294090-0390, 294090-0760
• Compatible Pump Models: This plunger fits Bosch HP3 pumps with the following base numbers: 294000-0047, 294000-0059, 294000-0119, 294000-0186, 294000-0196, 294000-0390, 294000-0424, 294000-0552, 294000-0560, 294000-0744, 294000-0770, 294000-1140.

Compatibility

This HP3 pump plunger is designed for use in Bosch CP3 / HP3 high-pressure common rail fuel injection pumps. These pumps are widely used in:

• Engine Applications: Heavy-duty diesel engines for trucks, buses, agricultural tractors, construction machinery (excavators, loaders), and marine generators.
• Vehicle Makes: Compatible with various diesel vehicles including brands like Isuzu, Hino, Mitsubishi, and other Asian and European OEMs that utilize Bosch HP3 pump architecture.

Global Supply & Distribution

• Worldwide Shipping: We offer reliable shipping via DHL, FedEx, UPS, TNT, and sea freight to meet your delivery requirements.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, Poland), Asia-Pacific (Australia, Japan, Thailand, Indonesia), Middle East (UAE, Saudi Arabia), and South America (Brazil, Argentina).
• Fast Delivery: Orders are processed within 3-7 days and shipped to major ports and airports globally. We work with experienced freight forwarders to ensure smooth customs clearance.
• Export Experience: We are experienced in international trade and can provide necessary documentation for compliance.

Quality Assurance

• Manufacturing Standard: Produced in an ISO-certified facility using advanced CNC machining and heat treatment processes.
• Testing: Each plunger undergoes rigorous dimensional inspection and surface hardness testing to ensure 100% quality.
• Warranty: We back our product with a 6-month warranty against manufacturing defects, giving you peace of mind.

FAQ

Q: How do I know if this plunger fits my specific pump?
A: Please verify the part number on your existing plunger or the pump body. This set is a direct match for OE numbers 294090-0010, 294090-0390, and 294090-0760. If your pump model number (e.g., 294000-0047) is listed in the OEM Cross-Reference section above, it is compatible.

Q: What is the installation procedure for this plunger?
A: Installation should be performed by a qualified diesel technician. The process involves removing the pump head, extracting the old plunger and barrel assembly, cleaning the bore thoroughly, and installing the new set. It is critical to lubricate the plunger with clean diesel fuel during assembly. Always replace the delivery valve and seal kit at the same time for best results.

Q: What maintenance is required after replacing the plunger?
A: After installation, the injection pump must be timed and calibrated on a test bench to ensure correct fuel delivery. We also recommend replacing the fuel filters and cleaning the fuel tank to prevent contamination from damaging the new, high-precision plunger. Regular fuel filter changes every 10,000 km or as per the engine manufacturer’s schedule are essential for longevity.