Product Overview

This high-quality Common Rail Pressure Relief Valve, OEM number 4384241, is a direct replacement component designed for a wide range of Cummins diesel engines. Manufactured to meet stringent OE standards, this valve ensures precise fuel pressure regulation within the common rail system. We supply this critical part to global markets including North America, Europe, Southeast Asia, and the Middle East, serving heavy-duty truck fleets, construction machinery operators, and agricultural equipment dealers.

Key Features & Benefits

• Precision Engineering: Constructed from high-speed steel for exceptional durability and resistance to wear under high-pressure fuel injection conditions.
• 100% Professional Testing: Each unit undergoes rigorous testing to guarantee reliable operation and exact pressure relief performance.
• Direct OE Replacement: Designed to match the form, fit, and function of the original Cummins part, ensuring a hassle-free installation.
• Enhanced Engine Protection: Prevents over-pressurization in the fuel rail, safeguarding sensitive injectors and the high-pressure pump from damage.
• Cost-Effective Solution: A premium aftermarket alternative to the OEM part, offering significant savings without compromising quality.

Technical Specifications

OEM Cross-Reference

This product is designed to serve as a direct replacement for the following OEM numbers. Please verify your existing part number against this list:

• Primary OEM Number: 4384241
• Superseded / Alternative Numbers:
• 4384241-01
• 4384241-02
• 4384241-03
• 4384241-04
• 4384241-05
• 4384241-06

Compatibility

This Pressure Relief Valve is specifically designed for use in the following Cummins engine families and applications:

• Engine Models:
• Cummins ISB5.9 (5.9L)
• Cummins ISC8.3 (8.3L)
• Cummins ISF2.8 (2.8L)
• Other compatible C-series and B-series engines utilizing the 4384241 rail pressure sensor/valve assembly.
• Vehicle Applications: Diesel cars, light trucks, medium-duty trucks, buses, and construction machinery equipped with the above-listed engines.

Global Supply & Distribution

We understand the urgency of keeping your fleet or equipment operational. Our logistics network ensures fast and reliable delivery worldwide:

• Shipping Capabilities: We ship via DHL, FedEx, UPS, TNT, and sea freight to meet your delivery timeline and budget.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Japan, South Korea), Middle East (UAE, Saudi Arabia), and Africa.
• Fast Dispatch: Orders are processed within 24 hours, with a standard delivery time of 3-7 working days via express courier.
• Trade Compliance: We have extensive experience in international export documentation and customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in an ISO-certified facility in Shandong, China, using high-grade materials and modern manufacturing processes.
• Warranty: We offer a comprehensive 6-month warranty against manufacturing defects, ensuring your investment is protected.
• Testing: All units undergo a 100% professional test to verify pressure relief characteristics and sealing integrity before shipment.

FAQ

Q1: How do I know if this 4384241 valve is the correct replacement for my engine?
A: Please check the part number on your existing valve. It should be stamped with 4384241 or one of the superseded numbers (4384241-01 to 4384241-06). This valve is specifically designed for the Cummins ISB, ISC, and ISF series engines listed in the compatibility section.

Q2: What are the symptoms of a failing pressure relief valve?
A: Common symptoms include hard starting, rough idling, lack of engine power, black smoke from the exhaust, and the check engine light illuminating. A faulty valve can also cause fuel pressure fluctuations that damage injectors.

Q3: Is professional installation required for this part?
A: Yes, we strongly recommend installation by a qualified diesel mechanic. The common rail fuel system operates under extremely high pressure (up to 30,000 PSI). Improper installation can lead to serious injury, fuel leaks, or engine damage.