Product Overview

This is a premium quality, brand new Common Rail Fuel Injector designed specifically for the Cummins ISB and QSB 6.7L diesel engine. Manufactured to meet stringent OEM specifications, this injector (Part No. 0445120121 / 4940640) ensures optimal fuel atomization, enhanced engine performance, and reduced emissions. Our products are exported globally to major industrial markets including North America, Europe, Southeast Asia, and the Middle East, supporting heavy-duty trucking, agricultural machinery, and industrial power generation applications.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade stainless steel for superior corrosion resistance and extended service life.
• 100% Professional Tested: Each injector undergoes rigorous flow rate, pressure, and spray pattern testing to guarantee performance.
• Direct OEM Replacement: Matches factory specifications for seamless installation without modifications.
• Enhanced Fuel Economy: Optimized nozzle design (DLLA142P1709) ensures complete combustion, reducing fuel consumption and emissions.
• Durable Construction: Built to withstand high-pressure common rail systems, ensuring reliability in demanding conditions.

Technical Specifications

OEM Cross-Reference

This fuel injector is a direct cross-reference for the following OEM numbers:

• Cummins Part Number: 4940640
• Bosch Common Rail Injector Number: 0445120121
• Nozzle Assembly: DLLA142P1709

These part numbers are interchangeable and can be used to replace the original factory components on compatible engines.

Compatibility

This injector is specifically designed for the following engine applications:

• Engine Models: Cummins ISB 6.7L, Cummins QSB 6.7L
• Vehicle Applications: Dodge Ram 2500/3500 (2007-2012), Freightliner M2, International DuraStar, various agricultural and industrial equipment using the 6.7L ISB/QSB platform.
• System Type: Common Rail Diesel Fuel Injection System

Global Supply & Distribution

We are an established exporter based in Shandong, China, specializing in diesel engine components for the global aftermarket. Our logistics network ensures fast and reliable shipping to all major international destinations including:

• North America: Los Angeles, Houston, New York, Toronto
• Europe: Rotterdam, Hamburg, Antwerp
• Asia-Pacific: Singapore, Dubai, Sydney
• Middle East & Africa: Jebel Ali, Durban, Lagos

We offer flexible payment terms (T/T, Western Union, PayPal) and can accommodate both small parcel orders and bulk container shipments. Standard delivery time is 3-7 business days via express courier.

Quality Assurance

• Manufacturing Standards: Produced in ISO 9001 certified facilities with strict quality control processes.
• Testing: Each injector is 100% professionally tested for flow rate, opening pressure, and spray pattern before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Compliance: Products meet or exceed OEM specifications for performance and durability.

FAQ

Q1: Is this injector a direct replacement for the original Cummins part?
A: Yes, this injector (0445120121 / 4940640) is a direct OEM replacement. It matches the original specifications and is designed to be installed without any modifications. Always verify your engine’s current part number before ordering.

Q2: What maintenance is required after installing new injectors?
A: After installation, it is recommended to perform a fuel system bleed to remove air pockets. We also suggest replacing the fuel filter and using high-quality diesel fuel to ensure optimal injector performance and longevity. Regular fuel system maintenance every 30,000-50,000 miles is advised.

Q3: Can this injector be used in agricultural or industrial equipment?
A: Absolutely. The Cummins ISB/QSB 6.7L engine is widely used in agricultural tractors, combines, and industrial generators. This injector is compatible with all applications using this engine platform. Please cross-reference your engine serial number to confirm compatibility.