Buy wp20471 - Genuine Cummins Fuel Actuator, Timing Kit ISX15 - wisentpartscenter.com

Description

The Genuine Cummins Fuel Metering Actuator 4089428 is for Cummins ISX 15.0L diesel engines equipped with the HPI fuel system. This electronically controlled actuator regulates the amount of fuel supplied to the injectors, supporting proper combustion, consistent engine power, and efficient operation.

Fitment / Applications

  • Engine Manufacturer: Cummins
  • Engine: ISX 15.0L Diesel
  • Engine Control System: CM570 / CM571
  • Application Years: 2001–2003

What's Included

  • 1 × Genuine Cummins Fuel Metering Actuator

Note: Verify fitment with us before ordering to ensure the correct part for your application.

Purpose of the Part

The fuel metering actuator controls how much diesel fuel is supplied to the engine's injectors. It responds to commands from the engine control module, helping maintain accurate fuel delivery, smooth engine operation, and consistent power under changing loads.

Issue Symptoms / When to Replace

Possible signs of fuel metering actuator problems may include:

  • Rough idle or fluctuating engine RPM
  • Hard starting or extended cranking
  • Reduced engine power or inconsistent acceleration
  • Engine hesitation or intermittent stalling
  • Fuel system-related fault codes

These symptoms may also result from fuel supply, wiring, injector, or other engine issues. Proper diagnosis is recommended before replacing the actuator.

Brand Information

Cummins introduced the ISX engine family in 1998 as the successor to its N14 platform. Early ISX engines featured an electronically controlled HPI fuel system with separate metering and timing actuators. This design allowed the engine to independently manage fuel quantity and injection timing for improved combustion control and performance.

Installation Notes
  • Fuel System: Eliminate fuel contamination before installation to prevent actuator sticking or premature failure.
  • Sealing: Use the correct actuator mounting gasket to prevent fuel leakage.

How to Identify an OEM Part

Look for the M-CUMMINS SCANIA HPL LLC casting on the metal housing, the manufacturer identification barcode label.

Why Buy 4089428 From Wisent Parts Center?

  • 1 Year
    Warranty

  • Genuine Parts

    Authentic OEM parts

  • 30-Day Returns

    Conditions apply

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Warranty & Return Information
Warranty Information

Wisent Parts offers a 1-year warranty on all parts from the date of delivery. This warranty covers orders placed directly through our website. If a part fails during this period, we’re here to help - whether it’s a replacement, repair, or refund. For full details, refer to the Warranty page.

Return Information

Wisent Parts accepts returns within 30 days of delivery. All returns are subject to a restocking fee. To qualify, parts must be unused and in their original condition. For full return instructions and restocking fee details, please refer to the Returns page.