Product Overview

This high-quality diesel fuel injector nozzle is a direct replacement for Cummins ISB and QSB 4.5L and 6.7L engines. Engineered for precision fuel delivery, this injector (OEM 0445120177 / 5254261) ensures optimal combustion efficiency and engine performance. We are a global supplier based in Shandong, China, serving major markets including North America, Europe, Asia-Pacific, and the Middle East with fast, reliable shipping.

Key Features & Benefits

• Precision Engineering: Manufactured to OEM specifications for a perfect fit and reliable performance in Cummins ISB/QSB engines.
• Durable Construction: Made from high-grade stainless steel to resist corrosion and wear, ensuring a long service life.
• Enhanced Fuel Efficiency: Improves fuel atomization for cleaner combustion, reducing fuel consumption and emissions.
• 100% Tested: Every unit undergoes professional testing to guarantee consistent flow rates and spray patterns.
• Direct Replacement: Simple plug-and-play installation without modifications, saving downtime and labor costs.

Technical Specifications

OEM Cross-Reference

This fuel injector nozzle directly replaces the following OEM and cross-reference numbers:

• Bosch Part Number: 0445120177
• Cummins OEM Number: 5254261
• Alternative Reference: 0445120177 / 5254261

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

Compatibility

• Engine Models: Cummins ISB 4.5L, ISB 6.7L, QSB 4.5L, QSB 6.7L
• Vehicle Applications: Dodge Ram 2500/3500 (2007.5–2012 with 6.7L Cummins), Freightliner M2, International DuraStar, and various industrial, agricultural, and marine equipment using these engines.
• Year Range: Primarily 2007–2018 model years (confirm with your engine serial number).

Global Supply & Distribution

We provide worldwide shipping with reliable logistics partners. Our typical delivery times are:

• North America (USA, Canada, Mexico): 5–10 business days to major ports (Los Angeles, Houston, New York) and inland hubs.
• Europe (Germany, UK, Netherlands, France): 5–8 business days via air or express courier.
• Asia-Pacific (Australia, Japan, Singapore): 3–7 business days.
• Middle East (UAE, Saudi Arabia, Turkey): 5–10 business days.
• South America & Africa: 10–15 business days to major seaports.

We have extensive experience in international trade and can handle all customs documentation for smooth clearance.

Quality Assurance

Our injectors are manufactured in an ISO 9001:2000 and TS 16949 certified facility. Each unit is 100% professionally tested for spray pattern, flow rate, and sealing integrity before shipment. We offer a 6-month warranty against manufacturing defects. For bulk or OEM orders, additional testing and custom packaging are available upon request.

FAQ

Q1: Is this injector a direct fit for my 2008 Dodge Ram 3500 with the 6.7L Cummins?
A: Yes, this injector (0445120177 / 5254261) is a direct OEM replacement for 2007.5–2012 Dodge Ram models equipped with the 6.7L Cummins ISB engine. Always verify your existing part number to confirm.

Q2: Do I need to replace the injector seals and washers when installing this nozzle?
A: Yes, we recommend replacing all copper washers, O-rings, and seals when installing a new injector. This ensures a proper seal and prevents fuel leaks or compression loss.

Q3: What is the expected lifespan of this injector under normal operating conditions?
A: With proper fuel filtration and regular maintenance, this injector can last 100,000–150,000 miles (160,000–240,000 km). Using high-quality diesel fuel and changing fuel filters on schedule will maximize its service life.