Product Overview

This high-quality diesel injector connecting pipe and nozzle assembly is a direct replacement for OEM numbers C4903290 and C4931173. Designed for precision fuel delivery in modern diesel engines, this component ensures optimal combustion efficiency and engine performance. We serve a global B2B clientele, with regular shipments to North America, Europe, Asia-Pacific, the Middle East, and South America. Our streamlined logistics network ensures fast delivery to major industrial hubs and ports worldwide.

Key Features & Benefits

• Premium Material: Manufactured from high-speed steel for exceptional durability and resistance to wear and high-pressure fuel injection cycles.
• Precision Engineering: Machined to exact OEM specifications for a perfect, leak-free seal and consistent fuel spray pattern.
• Enhanced Performance: Restores original engine power, reduces fuel consumption, and minimizes harmful emissions.
• Reliable Operation: Rigorously tested to withstand extreme operating temperatures and pressures found in modern diesel engines.
• Cost-Effective Solution: A direct replacement part that avoids expensive dealership repairs while maintaining OE-level quality.

Technical Specifications

OEM Cross-Reference

This injector connecting pipe is a direct replacement for the following OEM and reference numbers:

• Primary OEM: C4903290, C4931173
• Nozzle Reference: DLLA150P115, 0433171104

Please verify your existing part number before ordering to ensure compatibility.

Compatibility

This component is designed for use in a wide range of diesel engines, including those found in light commercial vehicles, agricultural machinery, and industrial equipment. It is commonly used in applications requiring Bosch-style injector systems. While primarily designed for “diesel car” applications, it is suitable for any diesel engine utilizing these specific connector and nozzle configurations. Always cross-reference your engine model and existing part number for a guaranteed fit.

Global Supply & Distribution

We are a dedicated supplier to the global aftermarket, offering reliable shipping solutions for international B2B buyers. Our logistics network supports:

• Worldwide Shipping: Partnered with DHL, TNT, UPS, EMS, and FEDEX for fast, trackable delivery.
• Major Markets: We serve clients in North America, Europe, Southeast Asia, the Middle East, Africa, and Oceania.
• Fast Delivery: Standard dispatch within 3-7 working days after order confirmation.
• Trade Compliance: Experienced in international export documentation and customs clearance processes.

Quality Assurance

Every injector connecting pipe and nozzle undergoes strict quality control checks before shipment. Our manufacturing process adheres to international standards for diesel fuel injection components. We stand behind our product with a 6-month warranty against manufacturing defects, providing peace of mind for your business operations.

FAQ

Q: How do I verify this part will fit my engine?
A: Please check the existing part number on your current injector connecting pipe. The primary compatible numbers are C4903290 and C4931173. Also, verify the nozzle type (DLLA150P115). If your application uses these specific components, it will be a direct fit.

Q: What is the recommended installation procedure?
A: Installation should be performed by a qualified diesel technician. Ensure the fuel system is depressurized before removal. Clean the mounting surfaces thoroughly. Torque the connecting pipe to the manufacturer’s specifications to prevent leaks. Always replace copper washers or seals if applicable.

Q: How should I store these injector components?
A: Store in a clean, dry environment to prevent corrosion. Keep the parts in their original packaging until installation to protect the precision-machined surfaces from dust and damage. Avoid exposure to extreme temperature fluctuations.