Product Overview

This is a high-performance, new replacement diesel fuel injector engineered for Caterpillar C9.3 engines. Designed for global B2B distribution, this critical component is manufactured to exacting standards for durability and precise fuel delivery. We supply directly to workshops, heavy equipment dealers, and fleet operators across North America, Europe, the Middle East, and Asia-Pacific, ensuring reliable performance in demanding industrial and construction environments.

Key Features & Benefits

• 100% Professionally Tested: Each injector undergoes rigorous bench testing to ensure optimal spray pattern, flow rate, and sealing integrity before shipment.
• Premium High-Speed Steel Construction: Manufactured from durable materials to withstand high-pressure diesel injection cycles, resist wear, and provide a long service life.
• Precision Engineered for Exact Fitment: Designed as a direct OEM replacement, ensuring seamless installation and compatibility with the Caterpillar C9.3 engine management system.
• Enhanced Fuel Efficiency & Emissions Control: Precise fuel atomization promotes complete combustion, contributing to optimal engine power, reduced fuel consumption, and lower emissions.
• Neutral & Secure Packaging: Each unit is individually packaged to prevent damage during international shipping and logistics handling.

Technical Specifications

OEM Cross-Reference

This injector is a direct replacement for the following OEM and alternative part numbers. Always verify the specific number against your original part for confirmation.

• Caterpillar®: 3674293, 367-4293
• Common Cross-References: 20R5036, 20R-5036, 4563493, 456-3493, 3630493, 363-0493

Compatibility

Primary Engine Application:

• Engine Model: Caterpillar C9.3 Diesel Engine

Compatible Machine Model:

• Excavator: Caterpillar 336E

Note: Compatibility may extend to other Caterpillar equipment utilizing the C9.3 power unit. Please consult your service manual or contact our technical support with your machine’s serial number for precise verification.

Global Supply & Distribution

We are a professional exporter of heavy-duty engine components with extensive experience in international logistics and trade compliance. Our streamlined supply chain ensures efficient delivery to major global markets.

• Worldwide Shipping: We ship to all major industrial regions, including North America (USA, Canada, Mexico), Europe (UK, Germany, Poland), the Middle East (UAE, Saudi Arabia), and Asia-Pacific (Australia, Singapore).
• Fast Port-to-Port Delivery: Standard delivery to key hubs like Rotterdam, Los Angeles, Singapore, and Jebel Ali is optimized for speed and reliability.
• B2B Focus: We specialize in bulk and wholesale orders for distributors, repair shops, and large fleet operators, with all necessary export documentation provided.

Quality Assurance

• Manufacturing Standards: Produced in ISO-certified facilities using precision CNC machinery and advanced quality control systems.
• Comprehensive Warranty: Backed by a 6-month warranty from the date of delivery, covering defects in materials and workmanship.
• Testing Protocol: Every injector is subjected to professional testing for leak-down pressure, pop pressure, and flow consistency to match OEM performance specifications.

FAQ

Q1: Is this injector a direct fit for my Caterpillar 336E excavator?
A: Yes, this injector with part number 3674293 is designed as a direct OEM replacement for the C9.3 engine in the Caterpillar 336E model. We recommend verifying your machine’s serial number and the part number removed from your engine for absolute confirmation.

Q2: What testing is performed on these injectors before shipping?
A: Each unit is 100% professionally tested on specialized bench equipment. Tests include checking the nozzle’s opening (pop) pressure, verifying a proper fuel spray pattern, and ensuring there are no internal or external leaks under specified pressures, guaranteeing performance out of the box.

Q3: Do you provide technical support for installation?
A: While we provide the high-quality component, installation should be performed by a qualified diesel technician. Proper installation is critical and includes tasks like cleaning the injector bore, using new seals and hold-down clamps, and following precise torque specifications to prevent damage and ensure optimal engine performance.

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 .