Product Overview

This high-quality Bosch-style common rail fuel injector (OEM 0445120255 / 5263318) is a direct replacement for Cummins diesel engines found in Dodge Ram pickup trucks. Built for reliability and performance, this injector is precision-engineered to meet or exceed original equipment specifications. We serve a global B2B clientele, with extensive shipping to North America, Europe, Southeast Asia, and the Middle East.

Key Features & Benefits

• Direct Fitment: Designed as a 1:1 replacement for the original injector, ensuring a hassle-free installation process.
• High-Precision Calibration: Each injector is 100% professionally tested to guarantee accurate fuel metering and spray pattern for optimal engine performance.
• Durable Construction: Manufactured from high-grade steel to withstand extreme pressure and temperature conditions within the common rail system.
• Enhanced Engine Efficiency: Restores lost power, reduces smoke emissions, and improves fuel economy compared to worn-out injectors.
• Reliable Supply: Competitive MOQ of 1 piece with fast 3-7 day dispatch for B2B orders.

Technical Specifications

OEM Cross-Reference

This injector is a direct replacement for the following original equipment manufacturer (OEM) and cross-reference numbers:

• Bosch OEM: 0445120255, 0445120007
• Cummins OEM: 5263318, 5263318
• Nozzle Reference: DSLA143P5519

Compatibility

Engine Models:

• Cummins ISB 5.9L (Common Rail)
• Cummins 6BT 5.9L (Common Rail variants)

Vehicle Applications:

• Dodge Ram 2500 / 3500 (2003-2007) with 5.9L Cummins
• Compatible with various industrial and agricultural equipment using the same Bosch CP3 common rail system.

Global Supply & Distribution

We offer efficient global logistics to serve B2B partners worldwide. Our distribution network supports:

• North America: Fast shipping to major hubs like Los Angeles, Houston, Chicago, and Toronto.
• Europe: Direct delivery to Rotterdam, Hamburg, and Felixstowe.
• Asia-Pacific: Express shipping to Singapore, Dubai, and Sydney.
• Middle East & Africa: Reliable service to Jebel Ali, Dammam, and Durban.

We handle all export documentation and customs compliance to ensure smooth international transactions.

Quality Assurance

• Manufacturing Standard: Produced under strict ISO quality management systems.
• Testing: Every unit undergoes 100% flow rate, pressure, and spray pattern testing before shipment.
• Warranty: Backed by a 6-month warranty against manufacturing defects.

FAQ

Q1: Is this injector a direct bolt-on replacement for my 2005 Dodge Ram 5.9L Cummins?
Yes, this injector (0445120255) is a direct OEM replacement. It will bolt directly into the cylinder head without any modifications. We recommend replacing all six injectors at the same time for balanced engine performance.

Q2: What is the difference between part numbers 0445120255 and 0445120007?
Both numbers refer to the same Bosch common rail injector design for the 5.9L Cummins. The 0445120255 is a later revision number, while 0445120007 is an older superseded part number. Both are functionally identical and compatible.

Q3: Do I need to program or calibrate this injector after installation?
No, this injector is a non-ECU coded unit. It does not require any electronic programming or coding. However, we strongly recommend using new copper washers and tightening to the manufacturer’s specified torque settings to prevent leaks.

Our advantages

1.An authorized wholesaler of Isuzu genuine parts, Hino genuine parts, Mitsubishi genuine parts and Mahle parts.

2. We are not only supply genuine parts, but also high quality OEM parts, which are made in China or made in Japan.

3. More than 10 years of experience in machinery parts, professional supply of diesel engine parts.

4. Fast delivery, the fastest can be shipped in one day ,more than 500,000 of different types parts in stock.

5. Scientific ERP system, easy and fast to locate the parts that customer needs.

6. Professional technician checks the parts before delivery, to make sure the parts are correct, usable and defect-free.

Exhibition

Packing&Shipping

1.  Our shipment is by air/sea/express (DHL/FEDEX/TNT/UPS/EMS).

2.  Once we get confirmation of payment, we will ship products in 2 days.

3.  Our packaging is standard export wooden box or others as your requirement.

4. We’ll check and test the products before shipping , and givethe pictures to our customers to confirm.

FAQ

Q1. What is your company major products?

A: Our main products are Liner kit, Piston, Rings, Liner, Gasket kit, Bearing, Injection pump, Nozzle, Water pump, Oil pump,Crankshaft, Turbocharger,Filter, etc.

Q2.What is the MOQ?

A: Normally we can supply any quantity if we have in stock.

Q3. What is your payment term ?

A: We accept Western Union, T/T, Paypal.

Q4. What is the packing ?

A: Carton or wooden case , If you want to put your logo on the packing , We will do it after get your authorization letter.

Q5. When can you deliver products after payment ?

A: By Express ,usually might take 3-4 days ;By Air , Usually take 7-9 days ; By Sea ,usually take 1-2 months .

Q6. What can you do to complete order perfectly ?

A: In the beginning , We will communicate with clients in details to understand what they need .

Before packing , We will check the products and send photos to clients .After confirmation ,

We will packing products well to avoid damage . Once we get tracking number ,

We will send it to customer and keep contact in with clients .