Product Overview

This is a premium quality, brand new Fuel Pressure Limiting/Relief Valve (Part Number: 294160-0220), specifically engineered for high-pressure common rail fuel systems. Designed as a direct replacement for DENSO HP3 and HP4 fuel pumps, this valve is essential for maintaining precise fuel pressure and protecting the injection system from over-pressure damage. We serve a global B2B clientele, with major markets in North America, Europe, Southeast Asia, the Middle East, and South America. Our products are shipped worldwide from our strategic distribution centers in Shandong, China, ensuring fast and reliable delivery to industrial hubs and ports globally.

Key Features & Benefits

• Precision Fuel Pressure Control: Ensures stable system pressure, preventing fuel rail over-pressurization and protecting injectors and the pump from damage.
• High-Speed Steel Construction: Manufactured from durable high-speed steel for exceptional wear resistance and long service life under extreme pressure and temperature conditions.
• 100% Professional Testing: Every unit undergoes rigorous functional testing to guarantee leak-free performance and precise opening/closing pressure specifications.
• OEM Equivalent Quality: Manufactured to meet or exceed original DENSO specifications, ensuring seamless fitment and reliable operation as a direct replacement.
• Easy Installation: A direct bolt-on replacement component, designed for simple installation by qualified diesel technicians without the need for modifications.

Technical Specifications

OEM Cross-Reference

This 294160-0220 Pressure Limiting Valve is fully compatible with and replaces the following DENSO OEM part numbers and their common variants. Please verify your existing part number before ordering.

• Primary Part Number: 294160-0220
• Compatible Pump Assembly Numbers:
  • 294000-0173
  • 294000-0860
  • 294000-1320
  • 294000-0270
  • 294000-0280
  • 294000-0560
  • 294000-0565
  • 294000-0283
  • 294000-0861
  • 294000-0170
  • 294000-1324

Compatibility

This pressure relief valve is specifically designed for use in DENSO HP3 and HP4 Common Rail Fuel Pumps. These pumps are widely used in:

• Engine Applications: Heavy-duty diesel engines found in trucks, buses, construction machinery, and agricultural equipment.
• Vehicle Makes: Commonly used in Hino, Isuzu, Mitsubishi Fuso, UD Trucks, and various Chinese commercial vehicle brands (e.g., Dongfeng, Foton, Shacman).
• System Type: High-pressure common rail (HPCR) fuel injection systems.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with a robust global logistics network. We offer worldwide shipping via air, sea, and express couriers (DHL, FedEx, TNT, UPS) to ensure fast delivery to any destination.

• Major Markets Served: USA, Canada, Germany, UK, France, Australia, UAE, Saudi Arabia, Brazil, South Africa, Russia, and across Southeast Asia.
• Fast Delivery: Standard delivery time is 3-7 days for in-stock items. We can expedite shipping for urgent orders.
• Logistics Expertise: Experienced in handling international trade documentation, customs clearance, and delivery to major ports (e.g., Rotterdam, Los Angeles, Shanghai, Dubai, Singapore) and inland industrial centers.

Quality Assurance

Our commitment to quality ensures that every component we supply meets the highest industry standards.

• Manufacturing Standard: ISO 9001 quality management systems in place. Parts are manufactured to match or exceed OEM specifications.
• Testing: Each valve undergoes a 100% professional test to verify pressure calibration and leak integrity before shipping.
• Warranty: We offer a 6-month warranty against manufacturing defects, providing you with peace of mind for your repair or replacement needs.

FAQ

Q1: How do I know if this 294160-0220 valve will fit my fuel pump?
A1: This valve is designed for DENSO HP3 and HP4 common rail pumps. The most reliable way to confirm compatibility is to check the part number on your existing valve. If it reads 294160-0220, or if your pump assembly number is in the list of compatible pump numbers (e.g., 294000-0173, 294000-0860), this is the correct replacement part.

Q2: What are the symptoms of a faulty pressure limiting valve?
A2: A failing pressure relief valve can cause several issues: 1) Difficulty starting or long cranking times. 2) Engine hesitation, lack of power, or rough idling. 3) Fuel leaks from the pump body. 4) Diagnostic trouble codes (DTCs) related to rail pressure control (e.g., P0087, P0088, P0191). If you experience these, checking and replacing this valve is a common fix.

Q3: Can I install this valve myself, and are there any special precautions?
A3: Installation requires basic mechanical skills and proper tools. However, because this part is integral to the high-pressure fuel system, we recommend installation by a qualified diesel technician. Key precautions include: 1) Ensuring the work area and fuel system are clean to prevent contamination. 2) Replacing the copper sealing washer (if applicable) and tightening the valve to the manufacturer’s specified torque. 3) Priming the fuel system after installation to remove air before starting the engine.