Product Overview

This high-performance Fuel Pump Actuator Kit is a direct replacement for Cummins heavy-duty diesel engines, specifically designed for the X15, ISX15, and QSX15 series. As a critical component of the fuel injection pump, this actuator precisely controls fuel delivery for optimal engine performance, efficiency, and emissions compliance. Sourced from a specialized manufacturer in Shandong, China, this kit is engineered to meet or exceed OEM specifications. We ship globally, serving major markets including North America, Europe, Southeast Asia, the Middle East, and Australia, ensuring fast and reliable delivery to industrial centers and ports worldwide.

Key Features & Benefits

• Precision Engineered: Manufactured to exacting tolerances to ensure accurate fuel metering and injection timing for maximum horsepower and fuel economy.
• 100% Professional Tested: Each actuator kit undergoes rigorous bench testing to guarantee flawless operation and reliability before shipment.
• Durable Construction: Built with high-grade materials to withstand the extreme pressures and temperatures of modern high-performance diesel engines, ensuring a long service life.
• Direct OE Replacement: Designed as a direct bolt-on replacement for OEM part numbers 4089981, 4089980, and 4902904, eliminating the need for modifications.
• Reduced Downtime: A reliable replacement part that restores your fuel system to peak performance, minimizing costly vehicle downtime.

Technical Specifications

OEM Cross-Reference

This Fuel Pump Actuator Kit is a direct replacement for the following genuine OEM part numbers:

• 4089981 (Cummins)
• 4089980 (Cummins)
• 4902904 (Cummins)

These numbers correspond to the fuel actuator used on common rail fuel systems for the ISX and X15 engine platforms.

Compatibility

This actuator kit is specifically designed for use on the following Cummins engine models:

• Cummins X15 (Performance and Efficiency series)
• Cummins ISX15 (2010+ models)
• Cummins QSX15 (Industrial and Marine applications)

Vehicle Applications: This part is commonly used in heavy-duty trucks (Freightliner, Kenworth, Peterbilt, Volvo, International), agricultural tractors, and industrial equipment powered by the above engines. Please verify your specific engine model and year to ensure compatibility.

Global Supply & Distribution

We are a dedicated supplier of premium diesel engine components with a robust global distribution network. Our logistics team ensures your order reaches you quickly and efficiently, no matter where you are located.

• Worldwide Shipping: We ship to all major continents including North America, South America, Europe, Asia, Africa, and Oceania.
• Major Markets: We have a strong presence in the USA, Canada, Mexico, UK, Germany, UAE, Saudi Arabia, Australia, and Singapore.
• Fast Delivery: Standard delivery time is 3-7 working days via express (DHL, FedEx, UPS, TNT) or air freight. Sea freight is available for bulk orders.
• Trade Compliance: We have extensive experience in international trade, ensuring all documentation (commercial invoice, packing list, bill of lading) is accurate for customs clearance.

Quality Assurance

• Manufacturing Standards: Produced in an ISO 9001 certified facility, adhering to strict quality control procedures.
• Testing: Every single unit is 100% professionally tested for performance, pressure, and electrical response before leaving the factory.
• Warranty: We stand behind our product with a full 6-month warranty against manufacturing defects.
• Packaging: Securely packed in a neutral box to prevent damage during transit. Custom branding is available upon request.

FAQ

Q: What are the symptoms of a failing fuel pump actuator on my Cummins X15?

A: Common symptoms include the engine going into “derate” or limp mode, loss of power, poor fuel economy, hard starting, and the Check Engine Light illuminating with codes related to fuel rail pressure or actuator circuit faults (e.g., P0087, P0191, P2635).

Q: Is this actuator kit a direct replacement, and what is the installation difficulty?

A: Yes, this kit is a direct bolt-on replacement for the OEM units (4089981/4089980). Installation is considered moderate to advanced. It requires accessing the fuel pump on the side of the engine. We recommend replacement by a qualified diesel technician, as the fuel system may need to be primed and recalibrated after installation.

Q: Can I use this actuator on a Cummins ISX15 from 2007?

A: This specific actuator (4902904) is primarily designed for 2010+ models with the common rail fuel system. It is not compatible with the earlier 2007-2009 ISX that uses a different fuel system (CAPS or HPI-TP). Please verify your engine’s year and serial number to ensure correct fitment.

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 .