Product Overview

This high-quality diesel fuel injector nozzle set (Part Numbers: 4W7017, 4W7018, 4W7019) is a direct replacement for Caterpillar heavy-duty engines. Designed for precision fuel delivery, these injectors are essential for restoring engine performance, fuel efficiency, and reducing emissions in your Cat equipment. Sourced from a certified manufacturer in Shandong, China, we supply to major markets including North America, Europe, the Middle East, and Asia-Pacific with fast shipping via DHL, FedEx, or sea freight.

Key Features & Benefits

• OEM Standard Quality: Manufactured to match original Caterpillar specifications for a perfect fit and reliable operation.
• High Durability: Constructed from premium stainless steel to withstand extreme combustion pressures and temperatures, ensuring a long service life.
• Improved Engine Performance: Ensures optimal fuel atomization and injection timing, leading to smoother idling, increased horsepower, and better fuel economy.
• 100% Tested: Every injector undergoes rigorous pressure and spray pattern testing before shipment to guarantee zero defects.
• Cost-Effective Solution: A reliable aftermarket alternative to expensive OEM parts, offering significant savings without compromising quality.

Technical Specifications

OEM Cross-Reference

This injector nozzle set directly replaces the following OEM part numbers:

• Caterpillar OEM: 4W7017, 4W7018, 4W7019

Note: These are direct replacement numbers. No additional adapters or modifications are required.

Compatibility

This fuel injector set is specifically designed for the following Caterpillar engine models:

• Caterpillar 3406B (Heavy-duty truck and industrial engine)
• Caterpillar 3306 (Mid-range industrial and marine engine)
• Caterpillar 3412 (High-horsepower V12 engine)

Application: Suitable for use in Caterpillar excavators, bulldozers, generators, and heavy trucks equipped with these engine models. Always verify your engine serial number and injector type before purchasing.

Global Supply & Distribution

We are a dedicated supplier of diesel engine components with a robust global logistics network. We offer:

• Worldwide Shipping: Reliable delivery via air (DHL, UPS, FedEx) and sea (FCL/LCL) to any destination.
• Major Markets Served: United States, Canada, Germany, UK, UAE, Saudi Arabia, Australia, South Africa, and Southeast Asia.
• Fast Turnaround: Orders are processed and shipped within 3-7 business days from our warehouse in Shandong, China.
• Trade Compliance: We handle all export documentation to ensure smooth customs clearance.

Quality Assurance

• Manufacturing Standard: Produced in an ISO 9001 certified facility using advanced CNC machining and heat treatment processes.
• Testing: Each injector is 100% professionally tested for spray pattern, opening pressure, and leak tightness.
• Warranty: Backed by a 6-month warranty against manufacturing defects. Please contact us for any quality concerns.

FAQ

Q1: Are these injectors direct fit for my 3406B engine?
Yes, these injectors (4W7017, 4W7018, 4W7019) are designed as a direct replacement for the specified models. However, we recommend checking your injector’s current part number and your engine’s serial number to confirm compatibility, as there may be different injector series for specific applications.

Q2: What is the recommended installation procedure?
Installation should be performed by a qualified diesel mechanic. Ensure the injector bore is clean and free of debris. Always replace copper washers and O-rings. Torque the injector hold-down clamp to factory specifications to prevent leakage or damage.

Q3: How should I maintain these injectors for long life?
Use high-quality diesel fuel and regularly replace your fuel filters. Contaminated fuel is the leading cause of injector failure. If you notice rough idling, black smoke, or a loss of power, have the injectors 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 .