BOSCH FUEL CONTROL ACTUATOR (MPROP VALVE) FOR 2007-2018 DODGE 6.7L CUMMINS CP3 PUMP 0928400642
Restore accurate fuel pressure regulation and eliminate erratic engine behavior with this Bosch Fuel Control Actuator (also known as the MPROP Valve) for the 6.7L Cummins diesel. This precision component regulates the amount of fuel entering the high-pressure system, ensuring optimal performance, efficiency, and emissions control. Bosch fuel control actuators are designed to maintain proper fuel pressure on your fuel injected engine. When the part fails, the actual fuel pressure will not match the desired fuel pressure as specified by the engine computer. Both pressures can be monitored on a scan tool and compared. The most common symptom as the part begins to fail is varying / unstable idle. The MPROP is mounted on the back side of the CP3 pump and is attached by (3) T-25 Torx head screws.
Common symptoms of a failed MPROP valve include rough idling, stalling, hard starts, surging, and trouble codes such as P0087, P0088, P0191, or P0251. Avoid injector damage and regain full control of your fuel system with this genuine Bosch 0928400642 actuator.
What’s Included:
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(1) Bosch Fuel Control Actuator (MPROP Valve)
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OEM Part # 0928400642
Features and Benefits:
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✔️ Genuine Bosch OEM Part – Not a knockoff
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✔️ Designed specifically for the Bosch CP3 injection pump
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✔️ Restores accurate fuel metering and high-pressure regulation
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✔️ Helps eliminate no-starts, surging, excessive smoke, and low power
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✔️ Direct replacement – No tuning or modification required
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✔️ Durable construction for long-term reliability in extreme diesel conditions
Compatibility / Applications:
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2007.5–2018 Dodge Ram 2500 & 3500 with 6.7L Cummins Diesel
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CP3-equipped trucks only (non-CP4 models)
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Replaces Bosch part #0928400642
Note: Will not fit CP4 conversion kits or trucks equipped from the factory with a CP4 pump
Product Summary:
The MPROP valve is a critical component that governs how much fuel enters your injection pump. If you're chasing down drivability issues or fuel pressure DTCs on your 6.7L Cummins, this Bosch actuator is often the solution. Save your injectors—and your wallet—by replacing this before it causes further system damage.
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✔️ Expedited shipping options are available at checkout.
✔️ Orders are processed within 1 business day (Monday–Friday).
✔️ Orders placed on weekends or holidays will be processed on the next business day.
✔️ Tracking information will be provided once the item ships.
✔️ Shipping to PO Boxes, APO/FPO may be limited based on carrier restrictions.
California Proposition 65 Warning:
This product may contain chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
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P0087 – Fuel Rail/System Pressure Too Low: This code indicates that the fuel pressure in the rail is lower than expected, which may cause hard starts, poor acceleration, or engine stalling.
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P0088 – Fuel Rail/System Pressure Too High: This means the fuel pressure is too high, potentially due to a faulty pressure regulator, clogged return line, or malfunctioning fuel control actuator.
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P0089 – Fuel Pressure Regulator 1 Performance: The ECM detects that the fuel pressure regulator is not operating within normal parameters, which can affect fuel delivery and performance.
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P0090 – Fuel Pressure Regulator Control Circuit/Open: This code signals an electrical issue with the circuit that controls the fuel pressure regulator, such as damaged wiring, connector issues, or a failed regulator.
- P0191 – Fuel Rail Pressure Sensor "A" Circuit Range/Performance: This code points to a problem with the fuel rail pressure sensor — it may be out of calibration or sending erratic signals, leading to inconsistent fuel delivery.
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P0251 – Injection Pump Fuel Metering Control "A" (Cam/Rotor/Injector) Malfunction: Indicates a problem with the electronic control of the fuel metering on the injection pump — this can cause rough running, hard starts, or fuel economy issues.
INTERCHANGE PART NUMBERS:
4940423, 4947456, 5264247, 3977845, 3978275, 0445020146
0 445 020 047, 0 445 020 048, 0 445 020 076, 0 445 020 106
Warranty: This item carries at 90 DAYS
