Product Overview

This high-quality HP3 pump plunger and barrel assembly, with the primary part number 294090-0030, is a critical component for modern common rail diesel injection systems. Designed for precision and durability, this unit is an ideal replacement for a wide range of DENSO HP3 fuel injection pumps. Sourced from a leading Chinese manufacturer, this component is engineered to meet or exceed OEM specifications, ensuring reliable engine performance and fuel efficiency. We serve a global B2B clientele, with fast and reliable shipping to major industrial markets including North America, Europe, Southeast Asia, the Middle East, and South America.

Key Features & Benefits

• Precision Engineering: Manufactured to exacting tolerances to ensure optimal fuel metering and injection pressure, reducing fuel consumption and emissions.
• Superior Durability: Constructed from high-grade alloy steel with advanced surface treatment for exceptional wear resistance and a long service life.
• Direct Fitment: A direct OE replacement for multiple DENSO HP3 pump models, simplifying installation and minimizing downtime for repair shops.
• Rigorous Testing: Every plunger and barrel assembly undergoes strict quality control checks, including pressure and leak testing, to guarantee performance.
• Cost-Effective Solution: Offers a premium-quality alternative to expensive OEM parts, providing excellent value for fleet maintenance and repair workshops.

Technical Specifications

OEM Cross-Reference

This plunger and barrel assembly is a direct cross-reference for the following DENSO HP3 pump models. Please verify your pump’s model number before ordering.

• Primary Part: 294090-0030
• Alternative Part Numbers: 294090-0190, 294090-0370, 294090-0650, 294090-1210
• Compatible Pump Models (OEM): 294000-0039, 294000-0265, 294000-0570, 294000-0581, 294000-0610, 294000-0654, 294000-0681, 294000-0732, 294000-0832, 294000-1180, 294000-1190

Compatibility

This component is specifically designed for use in DENSO HP3 common rail fuel injection pumps. It is a standard replacement part used in a wide variety of heavy-duty diesel engines, including those found in trucks, buses, construction machinery, and agricultural equipment. Key applications include:

• Engine Applications: Diesel engines utilizing the DENSO HP3 injection system.
• Vehicle Types: Heavy-duty trucks, buses, excavators, loaders, tractors, and generators.
• Note: Always confirm your specific pump model number (e.g., 294000-xxxx) against the list provided in the OEM Cross-Reference section to ensure correct fitment.

Global Supply & Distribution

We are a dedicated supplier to the global automotive aftermarket, specializing in fast and efficient logistics. Our distribution network ensures that your order reaches you quickly, regardless of your location.

• Shipping Partners: DHL, UPS, FedEx, TNT, and EMS for reliable express delivery.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, Poland), Asia-Pacific (Japan, South Korea, Australia), Middle East (UAE, Saudi Arabia), and South America (Brazil, Chile).
• Delivery Time: Standard orders are dispatched within 3-7 working days. Express shipping to major international ports and industrial centers is available.
• Export Expertise: We have extensive experience in international trade and ensure all shipments comply with customs regulations for a smooth transaction.

Quality Assurance

We are committed to providing products that meet the highest standards of quality and reliability. Our manufacturing process is strictly controlled to ensure consistency and performance.

• Manufacturing Standards: Produced in an ISO-certified facility using advanced CNC machining and heat treatment processes.
• Testing: Each unit is tested for dimensional accuracy, surface finish, and hydraulic performance to ensure it meets OEM specifications.
• Warranty: We offer a 6-month warranty against manufacturing defects, providing you with peace of mind for your purchase.

FAQ

Q: How do I know if this plunger and barrel (294090-0030) is the correct part for my pump?

A: You must verify the model number on your DENSO HP3 pump. The pump model number typically starts with “294000-” followed by a 4-digit suffix (e.g., 294000-0039). This plunger is compatible with pumps listed in the OEM Cross-Reference section above. If your pump model is not listed, please contact us with your pump’s full model number for verification.

Q: What is the recommended installation procedure for this plunger and barrel set?

A: Installation of HP3 pump plungers is a precision task that should be performed by a qualified diesel technician. It requires a clean, dust-free environment. Key steps include: carefully lubricating the new plunger with clean diesel fuel, ensuring the barrel is perfectly aligned and seated in the pump housing, and torquing the retaining screws to the manufacturer’s specifications. Improper installation can lead to pump seizure or failure.

Q: What maintenance is required after replacing the plunger and barrel?

A: After replacing the plunger and barrel assembly, it is critical to prime the fuel system to remove all air before starting the engine. We also recommend replacing the fuel filter at the same time to prevent any contaminants from damaging the new, precision-machined components. Regular fuel quality and filter maintenance are essential for maximizing the lifespan of the injection system.