Product Overview

This premium Caterpillar C9 Fuel Injector (OEM 387-9434 / 10R-7221) is a high-precision diesel engine component designed for heavy-duty excavator applications. Manufactured to meet or exceed OEM specifications, this injector ensures optimal fuel atomization, combustion efficiency, and engine performance. We are a leading global supplier serving markets across North America, Europe, Asia-Pacific, the Middle East, and South America, offering fast and reliable shipping to major industrial hubs worldwide.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade steel with exacting tolerances for reliable fuel delivery and consistent engine power output.
• 100% New & Unused: Brand new unit, not remanufactured, ensuring maximum service life and performance from the first start.
• Excellent Durability: Built to withstand the high pressures and extreme temperatures of the C9 diesel engine, reducing downtime and maintenance costs.
• Direct OEM Replacement: A seamless swap for original Caterpillar injectors, eliminating fitment issues and saving valuable installation time.
• Rigorous Quality Control: Each injector is tested for flow rate, spray pattern, and pressure integrity before shipment.

Technical Specifications

OEM Cross-Reference

This fuel injector is a direct replacement for the following original Caterpillar part numbers:

• Caterpillar OEM: 387-9434
• Caterpillar OEM: 10R-7221
• Alternate Number: 10R7221

Always verify your engine’s serial number and existing part number to ensure correct fitment.

Compatibility

• Engine Model: Caterpillar C9 (Diesel Engine)
• Primary Application: Caterpillar Excavators (e.g., 320D, 323D, 325D, 330D series) and other heavy equipment utilizing the C9 engine.
• Other Applications: May also be used in Caterpillar generator sets, industrial engines, and on-highway trucks equipped with the C9 platform.

Note: This part is listed as a universal fitment for the diesel engine code. Please confirm compatibility with your specific machine model and engine serial number before purchase.

Global Supply & Distribution

We specialize in the global export of heavy machinery parts. Our logistics network ensures fast and secure delivery to any destination worldwide.

• Shipping Partners: DHL, UPS, FedEx, EMS, TNT for express delivery.
• Major Markets: United States, Canada, Germany, Australia, United Arab Emirates, Saudi Arabia, Brazil, and across Southeast Asia.
• Delivery Time: 3-7 working days for in-stock items via express courier.
• Packing: Secure export packaging to prevent damage during transit.

Quality Assurance

• Manufacturing Standard: Produced in an ISO-certified facility with strict adherence to quality management systems.
• Testing: Each injector undergoes individual pressure and spray pattern testing to ensure “Excellent” quality rating.
• Warranty: Backed by a 4-month warranty against manufacturing defects.
• Payment Security: We accept TT, Western Union, PayPal, and Trade Assurance for secure transactions.

FAQ

Q1: Is this injector a direct replacement for the original Caterpillar part?
A: Yes. This injector (387-9434 / 10R-7221) is a brand new, non-remanufactured unit designed to be a direct, drop-in replacement for the OEM injector on the Caterpillar C9 engine. No modifications are required for installation.

Q2: How do I confirm this injector will fit my specific excavator model?
A: Please check the part number stamped on your current injector. It should match one of the numbers listed (387-9434, 10R-7221, or 10R7221). Additionally, verify your engine model is a Caterpillar C9. If you are unsure, please contact us with your machine’s serial number and engine serial number for confirmation before ordering.

Q3: What is the recommended procedure for installing a new fuel injector?
A: Installation should be performed by a qualified diesel technician. It is critical to clean the injector bore thoroughly, replace the copper washer and O-rings, and torque the injector retaining bolt to the manufacturer’s specifications. Failure to follow proper procedures can lead to injector failure or engine damage. We also recommend replacing the fuel filter after installation.

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 .