Product Overview

This is a premium-grade, brand new diesel fuel injector, specifically engineered for heavy-duty Caterpillar industrial and marine engines. As a direct replacement for OEM numbers 4P9075, 4p-9075, 7E-3381, 7e3381, 9Y-4543, and 9y4543, this component is manufactured to the highest standards in Shandong, China. We supply this critical engine part globally to major markets including North America, Europe, Southeast Asia, the Middle East, and South America, ensuring reliable performance for generator sets, marine vessels, and industrial machinery.

Key Features & Benefits

• Precision Engineering: Manufactured from high-grade stainless steel for superior corrosion resistance and long-term durability in harsh operating environments.
• 100% Professional Testing: Every injector undergoes rigorous performance and pressure testing to ensure flawless operation and optimal fuel atomization.
• Direct Fitment: Designed as a direct OE replacement, ensuring a seamless installation process without modifications.
• Enhanced Engine Performance: Restores lost power, improves fuel efficiency, and reduces smoke emissions by delivering precise fuel metering.
• Cost-Effective Solution: Offers a high-quality alternative to OEM parts at a competitive price point, reducing maintenance costs for fleet operators.

Technical Specifications

OEM Cross-Reference

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

• Primary OEM: 4P9075, 4p-9075
• Alternate OEMs: 7E-3381, 7e3381
• Superseded Numbers: 9Y-4543, 9y4543

Compatibility

Engine Models:

• Caterpillar 3508
• Caterpillar 3512
• Caterpillar 3516

Vehicle & Equipment Applications:

• Generator Sets (Prime and Standby Power)
• Industrial Machinery
• Marine Engines (Propulsion and Auxiliary)
• Heavy-Duty Trucks and Off-Highway Vehicles (where applicable)

Note: This part is specifically designed for the Caterpillar 3500 series engines. Please verify your engine model and serial number before purchase.

Global Supply & Distribution

We are a dedicated exporter of high-quality engine parts, ensuring rapid and reliable delivery to customers worldwide.

• Worldwide Shipping: We ship to all continents via DHL, FedEx, UPS, TNT, and sea freight.
• Major Markets Served: North America (USA, Canada, Mexico), Europe (UK, Germany, Netherlands, Poland), Asia-Pacific (Australia, Singapore, Indonesia), Middle East (UAE, Saudi Arabia), and South America (Brazil, Chile).
• Fast Delivery: Stock items are dispatched within 3-7 business days to major industrial hubs and ports.
• Export Compliance: We have extensive experience in international trade documentation and customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in an ISO-certified facility using advanced CNC machining and assembly processes.
• Testing: Each injector is 100% professionally tested for spray pattern, opening pressure, and leak tightness before packaging.
• Warranty: Backed by a 6-month warranty against manufacturing defects.
• Packaging: Securely packed in neutral packaging or OEM-style boxes to prevent damage during transit.

FAQ

Q1: Is this fuel injector a direct fit for my Caterpillar 3516 engine?
A: Yes, this injector (OEM 4P9075) is a direct replacement for the Caterpillar 3508, 3512, and 3516 engine models. It is designed to match the original specifications, requiring no modifications for installation. We recommend verifying your engine’s serial number and current injector part number for absolute compatibility.

Q2: What is the recommended installation procedure for this injector?
A: Installation should be performed by a qualified diesel mechanic. Ensure the injector bore is clean and free of debris. Lubricate the O-rings with clean engine oil before insertion. Tighten the retaining clamp to the manufacturer’s specified torque. After installation, it is critical to bleed the fuel system to remove air before starting the engine.

Q3: How can I maintain these injectors for maximum service life?
A: To maximize service life, use high-quality diesel fuel and replace fuel filters at recommended intervals. Regularly check the fuel system for water contamination. Ensure the fuel return system is not restricted. If you notice a decrease in power, excessive smoke, or rough idling, have the injectors tested and cleaned by a professional service center.

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 .