4089663RX | Genuine Cummins® Fuel Pump Distributor Kit

SKU: 4089663RX MPN: 4089663RX

Fuel system issues? This OEM Cummins Fuel Pump Distributor Kit restores accurate fuel flow and injection timing. Part Number: 4089663RX. Condition: New. Compatible with 8.3L and 8.9L engines for reliable performance.

$1,299.00
No Core Charge
3 in stock

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Contact us to check if overnight next-day delivery is available for your order - PN: 4089663RX

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Product Description

Product Name Fuel Pump Distributor Kit Product Name Fuel Pump Distributor Kit
Condition New Condition New
Brand Cummins® Brand Cummins®
Part Number 4089663RX Part Number 4089663RX
Cross Reference 4089663 Cross Reference 4089663
Engine Compatibility
Cummins 8.3L / 8.9L Cummins 8.3L / 8.9L

Useful Information

Description and Purpose:

The Fuel Pump Distributor Kit ensures precise fuel metering and delivery within diesel engine injection systems. Part Number: 4089663RX. Brand: Cummins. Condition: New. This Genuine assembly is specifically designed for use with 8.3L and 8.9L Cummins engines, where it helps evenly distribute high-pressure diesel fuel to each injector. It supports core fuel delivery functions that directly affect combustion stability, system responsiveness, and emissions control across medium-duty applications. Cross reference: 4089663

Why Replacement is Important:

Over time, fuel distribution components wear down or lose calibration, leading to uneven injection, hard starts, or engine misfires. Replacing the kit restores consistent fuel flow, supporting dependable engine behavior.

Impact on Vehicle Performance:

A stable fuel distribution system improves power delivery, reduces fuel consumption, and ensures smoother engine operation, especially under variable load and speed conditions.

Manufacturer Information:

Cummins® is a global leader in diesel engine manufacturing, delivering powerful, fuel-efficient solutions for commercial and industrial use.

Tags & Category: Fuel Pump Components, Fuel Distributor Kit, Diesel Injection System Parts, Fuel Delivery Assembly, Fuel Injection Support, Engine Fuel System Kit, 8.3L Engine Compatible, 8.9L Engine Compatible, Medium Duty Engine Parts, High Pressure Fuel Components, Diesel Engine Fuel Pump, Internal Engine Fuel Distribution, Fuel Control System Parts, Diesel Fuel System Repair, Injection System Rebuild Kit

Warranty:

Parts Finder Q offers a 365-days warranty for all types of parts in any condition. The -warranty applies exclusively to purchases made directly through our website (partsfinderq.com). Please note that purchases made through third-party platforms like eBay or Amazon are not covered by this warranty.

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  • Icon Truck, Fast Delivery
    Free shipping over $199 Place an order today and receive it on Mar 6
  • Clock Icon
    Orders placed before 7-PM EST will ship same business day
  • Location icon, warehouse pickup point.
    Pickup available usually ready in 24 hours
  • Need it fast? We offer overnight shipping

    Contact us to check if overnight next-day delivery is available for your order - PN: 4089663RX