Product Overview

This is a premium, new Common Rail fuel injector designed as a direct replacement for Cummins QSB 6.7 diesel engines. Engineered for durability and precise fuel delivery, this injector is a critical component for maintaining optimal engine performance, fuel efficiency, and emissions control. We supply this high-quality part to a global B2B clientele, including distributors, workshops, and fleet operators across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineered: Manufactured to exacting tolerances for consistent spray pattern and fuel atomization, ensuring complete combustion and reduced emissions.
• Premium Stainless Steel Construction: Built with high-grade materials to withstand extreme pressures and temperatures within the common rail system, offering excellent corrosion resistance and long service life.
• 100% Professionally Tested: Each unit undergoes rigorous bench testing to verify flow rate, leak integrity, and electrical function, guaranteeing performance straight out of the box.
• Direct OEM Replacement: Designed as a plug-and-play component, ensuring perfect fitment and seamless integration with the existing engine management system without requiring modifications.
• Enhanced Engine Performance: Restores factory-level power output, throttle response, and fuel economy, resolving issues related to misfires, hard starting, or excessive smoke.

Technical Specifications

OEM Cross-Reference

This injector directly replaces the following OEM part numbers:

• Cummins: 0445120336
• Alternate Number: 5289380

Always verify the part number stamped on your original injector for confirmation.

Compatibility

This fuel injector is specifically engineered for the following application:

• Engine Model: Cummins QSB 6.7 Diesel Engine
• Vehicle Make: Primarily for industrial and commercial equipment powered by the QSB 6.7, including but not limited to construction machinery (excavators, loaders), generator sets, and agricultural equipment.

Note: Compatibility can vary by specific equipment model and year. Cross-reference the OEM part numbers above with your engine’s service documentation for absolute certainty.

Global Supply & Distribution

We are a specialized exporter of heavy-duty engine components with a robust international supply chain. Our capabilities include:

• Worldwide Shipping: We reliably ship to all major global markets, including North America (USA, Canada), Europe (UK, Germany, Netherlands), the Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and South America.
• Fast Logistics: Standard delivery to key industrial hubs and major ports within 3-7 days from order confirmation, with expedited options available.
• Export Expertise: Extensive experience in international B2B trade, ensuring smooth customs clearance and compliance with export documentation requirements. We support standard payment methods like T/T, Western Union, and PayPal for transaction flexibility.

Quality Assurance

Our commitment to quality ensures you receive a reliable and high-performance part:

• Manufacturing Standard: Produced in ISO-certified facilities using advanced CNC machinery and precision tooling.
• Comprehensive Testing: Every injector is subjected to professional bench tests simulating real-world operating conditions to validate pressure holding, dynamic response, and flow consistency.
• Warranty Backed: This product is covered by a 6-month warranty from the date of purchase, covering defects in materials and workmanship under normal use.

FAQ

Q: How do I confirm this injector will fit my Cummins QSB 6.7 engine?
A: The most reliable method is to match the part number. Locate the number stamped on the body of your current injector (typically 0445120336 or 5289380) and verify it matches the numbers listed in the OEM Cross-Reference section above. Also, confirm your engine’s model designation is QSB 6.7.

Q: Is this a direct replacement, or will it require programming/coding?
A: This is a direct physical replacement part. However, on modern common rail systems, it is often necessary to program the new injector’s correction code into the Engine Control Module (ECM) using appropriate diagnostic software. We recommend consulting the engine’s service manual or a qualified technician for the proper installation and coding procedure.

Q: What are the symptoms of a failing fuel injector that this part would fix?
A: Common symptoms include: hard starting, rough idle, engine misfires, loss of power, excessive black or white smoke from the exhaust, increased fuel consumption, and the engine running on fewer than all cylinders. Replacing a faulty injector can resolve these issues and restore performance.

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 .