Product Overview

This high-performance HEUI (Hydraulically actuated Electronically controlled Unit Injector) is a direct replacement for the Caterpillar C7 engine, specifically designed for heavy-duty applications including the E320D excavator. Manufactured to meet or exceed OEM specifications, this injector (Part Numbers 387-9427 / 3879427 / 10R-7225 / 10R7225) ensures reliable fuel delivery and optimal combustion efficiency. We ship globally via DHL, UPS, FEDEX, EMS, and TNT, serving major markets across North America, Europe, the Middle East, and Asia-Pacific.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade steel with exacting tolerances to ensure consistent fuel atomization and injection timing.
• Enhanced Durability: Designed to withstand the high-pressure demands of the HEUI system, reducing wear and extending service life.
• Direct Fitment: A true plug-and-play replacement; no modifications required. Universal fitment for the specified Cat C7 engine models.
• Improved Performance: Restores lost horsepower, reduces black smoke, and improves fuel economy compared to worn or failed injectors.
• Strict Quality Control: Each unit undergoes rigorous pressure and spray pattern testing before shipment to ensure 100% operational integrity.

Technical Specifications

OEM Cross-Reference

This injector is a direct cross-reference for the following OEM and aftermarket part numbers:

• Caterpillar OEM: 387-9427, 3879427, 10R-7225, 10R7225
• Application: Designed for the Caterpillar C7 engine platform.

Note: Always verify your engine’s serial number and current injector part number before ordering to ensure compatibility.

Compatibility

This injector is specifically engineered for the following applications:

• Engine Models: Caterpillar C7 (diesel engine)
• Vehicle/Equipment Models: Caterpillar E320D Excavator
• System Type: HEUI (Hydraulically actuated Electronically controlled Unit Injector)

Global Supply & Distribution

We are a dedicated supplier of heavy-duty diesel engine components with a robust global logistics network. Our distribution capabilities include:

• Shipping Partners: DHL, UPS, FEDEX, EMS, TNT for fast and reliable door-to-door delivery.
• Major Markets Served: North America (USA, Canada), Europe (Germany, UK, Netherlands), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore), and Africa.
• Delivery Time: 3-30 working days depending on destination and shipping method selected.
• Export Expertise: Experienced in international trade documentation and customs clearance to ensure smooth transactions.

Quality Assurance

• Manufacturing Standards: Produced in ISO-compliant facilities utilizing advanced machining and assembly processes.
• Testing: 100% tested for fuel flow rate, spray pattern, and pressure integrity before packaging.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Packaging: Securely packed in custom packaging to prevent damage during transit. Customer-specific packaging options are available upon request.

FAQ

Q1: How do I confirm this injector fits my Caterpillar C7 engine?
A: Please check the part number stamped on your current injector. It should match one of the numbers listed (387-9427 or 10R-7225). This injector is designed for the HEUI system found in the C7 engine used in E320D excavators. If you have a different engine serial number, please contact us with your details for verification.

Q2: Is professional installation required for this injector?
A: Yes. Due to the high-pressure nature of the HEUI system and the need for precise calibration, we strongly recommend installation by a qualified diesel technician. Incorrect installation can lead to engine damage or poor performance. Ensure the high-pressure oil system is clean and the injector bore is free of debris before installation.

Q3: What is the typical maintenance schedule for these injectors?
A: While injector life varies based on fuel quality and operating conditions, regular inspection is recommended every 2,000-3,000 hours of operation. Using clean, high-quality diesel fuel and changing fuel filters regularly will significantly extend the injector’s service life. If you notice rough idling, excessive smoke, or a loss of power, the injectors should be tested immediately.

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 .