Product Overview

This is a premium DN4PD57 Injector Nozzle (OEM Reference: 093400-5571), a high-performance replacement part designed for diesel fuel injection systems. Engineered for precision and durability, this nozzle ensures optimal fuel atomization for improved combustion efficiency. Sourced from a leading manufacturer in Shandong, China, our products are shipped globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and South America. Whether for fleet maintenance or individual repair, this nozzle provides a reliable solution for diesel engines requiring top-tier performance.

Key Features & Benefits

• Precision Engineering: Manufactured from High-Speed Steel for exceptional wear resistance and longevity.
• 100% Tested Quality: Every unit undergoes rigorous professional testing to guarantee flawless operation and strict adherence to OEM specifications.
• Optimized Fuel Efficiency: Designed for precise fuel metering and spray pattern, leading to better combustion, reduced emissions, and lower fuel consumption.
• Direct Fit Replacement: A direct OE replacement for part number DN4PD57, ensuring a hassle-free installation without modifications.
• Reliable Performance: Built for high-pressure common rail and traditional pump-line-nozzle systems, ensuring consistent performance under demanding conditions.

Technical Specifications

OEM Cross-Reference

This injection nozzle is a direct replacement for the following OEM and reference numbers:

• DN4PD57 (Main Part Number)
• 093400-5571 (OEM Reference)

Please verify your existing part number against the list above to ensure compatibility.

Compatibility

• Engine Type: Diesel Engines (Injection Systems)
• Vehicle Application: Suitable for diesel cars and light commercial vehicles utilizing the DN4PD57 nozzle standard.
• System Compatibility: Designed for mechanical or electronic fuel injection pumps that require this specific nozzle type.

Note: Always confirm fitment by matching the part number (DN4PD57 / 093400-5571) with your original component before purchase.

Global Supply & Distribution

We maintain a robust global supply chain to ensure fast and reliable delivery to our international clients. Our export capabilities include:

• Worldwide Shipping: We ship to all major regions including North America, Europe, Asia-Pacific, the Middle East, Africa, and South America.
• Fast Delivery: Standard delivery time is 3-7 days via express couriers (DHL, FedEx, UPS) to major ports and industrial centers.
• Flexible Payment: We accept T/T, Western Union, and PayPal for secure transactions.
• Export Experience: Our team is experienced in international trade compliance, ensuring smooth customs clearance for our customers.

Quality Assurance

• Manufacturing Standard: Produced under strict quality control measures in ISO-compliant facilities in Shandong, China.
• Testing: Each nozzle is 100% professionally tested for flow rate, spray pattern, and pressure sealing before packaging.
• Warranty: We offer a 6-month warranty against manufacturing defects, providing peace of mind for your purchase.

FAQ

Q: How can I confirm if this DN4PD57 nozzle fits my engine?
A: Please locate the part number on your existing injector nozzle. If it matches “DN4PD57” or “093400-5571”, this part is a direct fit. If you are unsure, please contact us with your engine model and current part number for verification.

Q: Is professional installation required for this nozzle?
A: Yes. Fuel injector nozzles are precision components. We strongly recommend installation by a qualified diesel mechanic. Incorrect installation can lead to poor engine performance or damage. Ensure the seat and mounting area are clean and torque specifications are followed.

Q: What maintenance is recommended after installing a new nozzle?
A: After installation, it is advisable to check for fuel leaks and ensure the injection timing is correctly set. For optimal performance and longevity, use clean, high-quality diesel fuel and replace your fuel filters regularly according to your vehicle’s service schedule.