Product Description

CUMMINS 4306993 OEM FUEL RAIL PRESSURE SENSOR (FRP) – RAM 6.7L (2013–2018)

The genuine CUMMINS 4306993 OEM Fuel Rail Pressure Sensor (FRP) is the factory-installed sensor responsible for accurately measuring high-pressure fuel delivery in your 6.7L Cummins common rail system. A faulty or drifting FRP sensor can cause hard starts, rough idle, derate conditions, low power, excessive smoke, and fuel system fault codes. Replacing it with a true Cummins OEM sensor ensures proper rail pressure feedback and prevents incorrect fueling events that can damage injectors or the CP3 pump.

This sensor mounts directly to the fuel rail and communicates real-time pressure data to the ECM. Aftermarket sensors often introduce erratic readings that lead to performance issues—this is why professionals insist on genuine Cummins FRP sensors for accurate, reliable operation.

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Key Features

• Genuine Cummins OEM sensor – precise calibration and reliability.
• Restores correct common rail pressure readings to the ECM.
• Prevents false fault codes and erratic rail pressure behavior.
• Direct-fit replacement for 2013–2018 6.7L Cummins.
• Protects CP3 pump and injectors from incorrect fuel delivery.

Fitment Details

• Engine: Cummins 6.7L ISB (Common Rail)
• Years: 2013–2018
• Applications: Ram 2500, 3500, 4500, 5500
• Notes: Always confirm via VIN/ESN due to common rail variant differences.

Cross-Reference & Companion Cummins Parts

CPP Diesel carries additional Cummins components that work with or around the fuel rail assembly:

• CUMMINS 2872395 PRESSURE RELIEF VALVE – protects the system from over-pressurization.
• CUMMINS 4974907 FUEL RAIL – 6.7L
• CUMMINS 68027032AA RAIL PRESSURE SENSOR PIGTAIL – restore clean electrical connection.
• VIEW ALL GENUINE CUMMINS OEM PARTS

Common interchange/cross-reference numbers: 4306993, 4306993RX (reman). Always verify by VIN/ESN.

Installation Notes

• Inspect fuel rail sealing surface before installing the new sensor.
• Do not over-torque — follow Cummins torque specification.
• Clear any FRP-related DTCs after installation.
• Check for fuel leaks after the first heat cycle.

Specifications for cummins 4306993

Frequently Asked Questions

WHAT SYMPTOMS INDICATE A BAD FUEL RAIL PRESSURE SENSOR?

Hard starting, reduced power, surging, rail pressure codes, or erratic idle commonly indicate FRP sensor failure.

CAN THIS SENSOR CAUSE A DERATE CONDITION?

Yes. Incorrect pressure readings can cause the ECM to limit power to protect the system.

SHOULD I REPLACE THE PIGTAIL WITH THIS SENSOR?

If the connector is brittle or shows corrosion, replacing it with the CUMMINS 68027032AA pigtail is recommended.

IS THIS A GENUINE CUMMINS PART?

Yes — CPP Diesel supplies only authentic Cummins OEM sensors for long-term reliability.