Product Overview

This high-quality Common Rail Injector Nozzle (Part Number 459-8473 / 4598473) is a precision-engineered diesel fuel injector designed specifically for Caterpillar C7 and C9 engines. Manufactured to meet or exceed OEM specifications, this injector nozzle ensures optimal fuel atomization, combustion efficiency, and engine performance. As a critical component of the fuel injection system, it is ideal for heavy-duty applications in construction, mining, agriculture, and power generation. We offer global shipping to major industrial markets including North America, Europe, the Middle East, Southeast Asia, and Australia, ensuring fast and reliable delivery to your port or warehouse.

Key Features & Benefits

• Precision Engineering: Manufactured from high-speed steel for exceptional durability and resistance to wear, ensuring a long service life under extreme pressure and temperature conditions.
• 100% Professional Testing: Every injector nozzle undergoes rigorous testing for spray pattern, flow rate, and pressure calibration to guarantee consistent performance and fuel efficiency.
• OEM Standard Quality: Direct replacement for OEM number 459-8473, offering a perfect fit and seamless integration with Caterpillar C7 and C9 common rail systems.
• Enhanced Fuel Economy: Optimized nozzle geometry ensures superior fuel atomization, leading to more complete combustion, reduced fuel consumption, and lower emissions.
• Reliable Performance: Designed to withstand the high pressures of modern common rail diesel engines, minimizing the risk of injector failure and engine downtime.

Technical Specifications

OEM Cross-Reference

This injector nozzle is a direct replacement for the following OEM part numbers:

• Caterpillar OEM: 459-8473, 4598473

Note: Please verify your engine model and existing part number to ensure compatibility. This part is designed for common rail systems only.

Compatibility

This injector nozzle is specifically designed for use in the following Caterpillar engine models:

• Caterpillar C7 (Common Rail Diesel Engine)
• Caterpillar C9 (Common Rail Diesel Engine)

Typical Applications: These engines are commonly found in Caterpillar heavy equipment such as excavators, wheel loaders, bulldozers, and on-highway trucks. Always confirm your engine serial number and injector code before purchase.

Global Supply & Distribution

We are a dedicated supplier of diesel engine parts with a robust global logistics network. Our distribution capabilities include:

• Worldwide Shipping: Reliable delivery to over 50 countries via air, sea, and express courier (DHL, FedEx, UPS, TNT).
• Major Markets Served: North America (USA, Canada, Mexico), Europe (Germany, UK, Netherlands, France), Middle East (UAE, Saudi Arabia), Asia-Pacific (Australia, Singapore, Indonesia), and Africa.
• Fast Delivery: Standard delivery time of 7-15 days to major ports and industrial hubs.
• Trade Compliance: Experienced in international export documentation, customs clearance, and volume-based pricing for B2B clients.

Quality Assurance

Our manufacturing process adheres to strict international quality control standards. Key quality assurances include:

• Manufacturing Standards: Produced in ISO-certified facilities using advanced CNC machining and heat treatment processes.
• Testing: Each unit is 100% flow-tested and pressure-calibrated to ensure it meets OEM performance specs.
• Warranty: Backed by a 6-month warranty against manufacturing defects in materials and workmanship.

Frequently Asked Questions (FAQ)

Q1: Is this injector nozzle a direct fit for my Caterpillar C7 engine?
A: Yes, this nozzle (459-8473) is an OEM-spec replacement designed for the Caterpillar C7 and C9 common rail fuel systems. However, we strongly recommend verifying your engine’s serial number and the existing injector part number to confirm compatibility, as there may be different injector variants within the same engine family.

Q2: What is the recommended installation procedure for this injector nozzle?
A: Installation should be performed by a qualified diesel technician. Key steps include: 1) Ensuring the fuel system is depressurized. 2) Cleaning the injector bore thoroughly. 3) Replacing copper washers and O-rings. 4) Torquing the injector retaining bolt to the manufacturer’s specification (typically around 30-40 Nm for C7/C9). 5) Priming the fuel system to remove air before starting the engine. Improper installation can cause injector failure or engine damage.

Q3: How can I ensure the longevity of this injector?
A: Longevity depends on fuel quality and maintenance. Always use clean, high-quality diesel fuel and replace your fuel filters at recommended intervals (every 250-500 hours). Contaminated fuel is the primary cause of injector nozzle wear. Additionally, avoid excessive engine idling and ensure the engine’s air filtration system is working correctly to prevent debris from entering the combustion chamber.

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 .