22031626 Pressure Sensor | Genuine Volvo Penta Part

🔧 Product Description

Electronic pressure sensor mounted on the common rail of Volvo Penta TAD540-TAD542VE engines. It measures rail pressure for the engine control module and is critical to injection quantity, timing and system protection. listed fitment: TAD540-42VE, TAD550-51VE, TAD552VE.

🚤 Compatibility

Typically suits:

• Volvo Penta TAD552VE
• Volvo Penta TAD550-51VE
• Volvo Penta TAD540-42VE

• Engine Family: TAD

⚙️ Key Features

• Common-rail pressure measurement
• TAD540-TAD542VE fuel-system application
• Factory electrical connector and calibration
• Installed on common rail 21860425
• Supports closed-loop injection-pressure control
• Engine type: 4-cylinder turbocharged common-rail industrial diesel

🔌 Function

Converts fuel-rail pressure into an electrical signal used by the ECM to regulate the high-pressure pump and injector operation.

⚠️ Common Signs of Failure

• Hard starting or no-start
• Engine derate or shutdown
• Unstable idle or surging
• Rail-pressure circuit, plausibility or regulation fault codes
• Incorrect live-data pressure compared with commanded pressure

🛠️ Service Notes

• Fit into a clean, dry, undamaged port with a new sealing washer or O-ring, start it by hand, and tighten only to the figure in the workshop manual — overtightening distorts the sensing element and shifts the reading
• Do not wrap sealing tape or smear jointing compound over the sensing face or into the port; shreds of tape travel into the system and a partly blocked port reads low
• Handle the sensor by its body: never lever it round by the connector or the wiring, and do not knock or drop it, since a sensing element is easily damaged without any external sign
• Mate the electrical connector clean and dry and push it fully home until it locks, then clip the harness so it cannot hang or pull on the sensor
• Before condemning a sensor, satisfy yourself the pressure it reports is genuinely wrong — an implausible reading is often a correct report of a real fault; after fitting, check the reading is stable and sensible cold and warm and that the sensor is dry under pressure

🔄 Supersession & Cross Reference

OEM / Related Numbers

• 21860425 (related common rail)
• 21785960 (related injectors)
• 22236215 (related injectors)
• 21888173 (related high-pressure fuel pipes)
• 21888175 (related high-pressure fuel pipes)
• 21888177 (related high-pressure fuel pipes)
• 21888179 (related high-pressure fuel pipes)
• 21888181 (related high-pressure fuel pipes)

📦 Condition

• Genuine Volvo Penta part
• Brand new
• Supplied in original or equivalent packaging