Product Overview

This high-quality Diesel Common Rail Pressure Relief Valve (also known as an Overflow Screw) is a critical component for maintaining optimal pressure within modern fuel injection systems. Designed for global distribution, this valve is a direct replacement for OEM part numbers 090310-0490 and 090310-0050. We serve a wide range of international markets, including North America, Europe, Asia-Pacific, the Middle East, and South America, ensuring reliable supply chains for B2B customers worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from High-Speed Steel for exceptional durability and resistance to wear in high-pressure environments.
• 100% Professional Testing: Every unit is rigorously tested to guarantee precise fuel pressure regulation, preventing system damage and ensuring engine performance.
• Direct OEM Replacement: Matches the exact specifications of the original part (090310-0490 & 090310-0050) for a seamless fit and function.
• Enhanced System Protection: Acts as a critical safety valve, relieving excess pressure in the common rail to protect injectors and the high-pressure pump.
• Reliable Performance: Ensures stable fuel delivery and consistent engine operation, reducing downtime and maintenance costs.

Technical Specifications

OEM Cross-Reference

This pressure relief valve is a direct replacement for the following OEM part numbers:

• OEM 090310-0490
• OEM 090310-0050

While these are the primary cross-references, this valve is designed to meet or exceed the specifications of the original equipment manufacturer. Please verify your specific application requirements.

Compatibility

This common rail overflow screw is designed for use in modern diesel engines equipped with high-pressure common rail fuel injection systems. While it is a standard component used across various makes and models, it is particularly suitable for:

• Vehicle Type: Diesel cars and light commercial vehicles.
• System: Common Rail Fuel Injection Systems requiring a pressure relief valve or overflow screw.
• Note: This is a generic component used by many OEMs. Always verify your existing part number (090310-0490 or 090310-0050) for compatibility.

Global Supply & Distribution

• Worldwide Shipping: We offer reliable shipping options to all major global markets, including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Fast Delivery: Standard delivery time is 3-7 days from our warehouse in Shandong, China. We ensure efficient logistics to major ports and industrial centers worldwide.
• Bulk Orders: Minimum Order Quantity (MOQ) is 50 Pcs, with the ability to handle large-scale volume orders for distributors and workshops.
• Flexible Payments: We accept T/T, Western Union, and PayPal for your convenience.
• Export Expertise: With years of experience in international trade, we ensure all documentation and packaging meet the standards required for smooth customs clearance in your country.

Quality Assurance

• Manufacturing Standards: Our parts are manufactured in ISO-compliant facilities in Shandong, China, using high-grade materials like High-Speed Steel.
• 100% Professional Testing: Each valve undergoes a rigorous testing process to verify its pressure relief function and structural integrity before shipment.
• Warranty: We stand behind the quality of our products with a standard 1-year warranty against manufacturing defects.

FAQ

Q1: How do I know if this valve (090310-0490/0050) is the correct replacement for my engine?
A: The most accurate way to confirm fitment is to compare the part number stamped on your existing valve with our listing (090310-0490 or 090310-0050). This part is a standard overflow screw for common rail systems. If your part number matches, it is a direct fit. If you are unsure, please contact us with your vehicle’s VIN or engine model for verification.

Q2: What are the symptoms of a faulty common rail pressure relief valve?
A: A failing or stuck relief valve can cause several issues, including: hard starting or no-start conditions, a significant loss of engine power, unstable or rough idling, increased fuel consumption, and potentially black smoke from the exhaust due to improper fuel pressure. If you experience these symptoms, inspecting and replacing this valve is a recommended first step.

Q3: Is installation of this overflow screw a difficult job?
A: The replacement of a common rail overflow screw is generally considered a straightforward mechanical task for a qualified diesel technician. It involves locating the valve on the common rail or high-pressure pump, carefully removing the old unit, and installing the new one. However, because it is part of the high-pressure fuel system, it is critical to relieve system pressure before disassembly and to follow the manufacturer’s torque specifications during installation. We recommend installation by a professional to ensure safety and proper function.