Product Details
Product Overview
We are a leading supplier of high-quality diesel engine components based in Shandong, China. This premium Common Rail Fuel Injector, bearing the critical part numbers 0445120193 and 5253220, is designed specifically for Cummins diesel engines. Our products are exported globally to major industrial markets including North America, Europe, Southeast Asia, and the Middle East. We cater to B2B clients requiring reliable, high-performance fuel injection parts for heavy-duty applications.
Key Features & Benefits
- Precision Engineering: Manufactured to exacting OEM specifications for a perfect fit and reliable performance in Cummins fuel systems.
- Durable Construction: Crafted from high-grade stainless steel to resist corrosion and withstand the extreme pressures of common rail systems.
- Enhanced Engine Performance: Ensures optimal fuel atomization, leading to improved combustion efficiency, reduced emissions, and better fuel economy.
- Stringent Quality Control: Each injector undergoes rigorous testing for flow rate, spray pattern, and pressure integrity before shipment.
- Direct Replacement: Designed for a seamless “replace/repair” installation, minimizing downtime for your fleet or equipment.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0445120193, 5253220 |
| Part Type | Common Rail Fuel Injector |
| Fuel Type | Diesel |
| Material | Stainless Steel |
| Quality | High-Performance, New |
| Application | Fuel Injection System |
| Weight | 1.0 kg (Single Gross Weight) |
| Package Size | 20 x 10 x 10 cm |
| Place of Origin | Shandong, China |
OEM Cross-Reference
This injector is a direct replacement for the following original equipment manufacturer (OEM) numbers:
- 0445120193 (Bosch Common Rail Injector)
- 5253220 (Cummins Part Number)
Please verify your engine’s specific requirements before ordering. This injector is designed for compatibility with Bosch common rail systems used on Cummins engines.
Compatibility
This fuel injector is primarily designed for use in Cummins diesel engines that utilize the Bosch common rail fuel injection system. It is commonly found in:
- Engine Models: ISB, ISBe, QSB, and other Cummins B-series engines equipped with common rail technology.
- Vehicle Applications: Medium-duty trucks, buses, construction equipment, agricultural machinery, and industrial power units.
Note: For exact fitment, please cross-reference your engine serial number and existing injector part number.
Global Supply & Distribution
Our robust supply chain enables us to offer fast and reliable shipping to B2B clients worldwide. We serve a diverse range of markets, ensuring that critical parts like this injector reach you with minimal lead time.
- Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Asia-Pacific (Australia, Japan, Singapore), Middle East (UAE, Saudi Arabia), and Africa.
- Shipping Capabilities: We ship via sea, air, and express couriers (DHL, FedEx, UPS) to major ports and industrial hubs.
- Export Experience: Our team is experienced in international trade, ensuring proper documentation and customs clearance for a seamless transaction.
Quality Assurance
- Manufacturing Standards: Produced in ISO-certified facilities, following strict quality control measures to match or exceed OEM standards.
- Testing: Every injector is 100% tested for fuel flow, pressure calibration, and spray pattern to ensure peak performance.
- Warranty: We stand behind the quality of our product with a 4-month warranty against manufacturing defects.
FAQ
1. How can I verify this injector will fit my engine?
Please check the part number on your existing injector. If it matches 0445120193 or 5253220, this part is a direct fit. You can also cross-reference your engine model (e.g., Cummins ISB) and the Bosch common rail system. If you are unsure, please contact our sales team with your engine serial number for verification.
2. What is the recommended installation procedure?
Installation should be performed by a qualified diesel mechanic. Key steps include: cleaning the injector bore, replacing the copper washer and O-rings, tightening the injector clamp to the correct torque specification, and using a scan tool to program the injector correction codes (IQ codes) into the ECU for optimal performance.
3. How should I store the injector before installation?
Keep the injector in its original packaging in a clean, dry environment. Do not remove the protective caps from the fuel inlet, outlet, or nozzle tip until immediately before installation to prevent contamination. Avoid exposure to extreme temperatures or moisture.
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 .
FAQ
Common Product Inquiry Questions
How can I confirm this part matches my engine or injector model?
Send the OEM number, engine model, application, or clear product photos. We will help verify the suitable part before quotation.
Can I ask for packing, shipping, and delivery details together?
Yes. You can combine product confirmation, quantity, destination, packing request, and shipment method in one inquiry so the quotation is more complete.
Why is price not displayed on the page?
This catalog is built for B2B inquiry. Final pricing depends on the confirmed part number, quantity, stock situation, and shipping destination.
What information helps you quote faster?
Please include the OEM number, engine model, quantity, destination country, and any packing or shipping preference. This usually speeds up matching and quotation.
Inquiry Desk
Send Product Inquiry
Use this form to ask for fitment, MOQ, delivery time, packing, and shipping support for this product.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.
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Quick Inquiry
Common Rail Fuel Injector 0445120193 5253220 for Cummins Diesel Engines – Stainless Steel, High Performance
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- OEM number is included automatically when available.
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Inquiry Desk
Send Inquiry
Quick contact for this product. OEM number is attached automatically.
- Simple inquiry flow with direct sales follow-up.
- Send OEM number, quantity, or destination in the optional message if available.
- Every submission is stored in WordPress and sent to your admin email.