21084672 Temperature Sensor | Genuine Volvo Penta Part

🔧 Product Description

Brand-new genuine Volvo Penta temperature sensor calibrated for use in the Volvo Penta engine temperature-monitoring circuit. It provides the engine control unit, alarm system or instrument with the electrical signal required to monitor operating conditions accurately. The measured medium and electrical curve are installation dependent; the exact sensor must be matched to the original gauge or ECU input rather than selected by thread alone. also supplied as an original spare for Volvo Penta CHP/genset engines.

⚙️ Key Features

• Genuine calibrated Volvo Penta sensor
• Correct connector and mounting interface
• Matched electrical range for the original control system
• Supports fault monitoring and protective functions
• Requires exact schematic and software compatibility
• Engine type: Volvo Penta marine or industrial diesel

🔌 Function

Measures the specified operating condition and converts it into an electrical signal for display, control, alarm or engine-protection logic.

⚠️ Common Signs of Failure

• Implausible or fixed sensor reading
• Intermittent warning, alarm or diagnostic code
• Poor starting, derate or control irregularity where the signal is used by the ECU
• Corroded pins, damaged wiring or loose connection
• Reading that differs from an independent mechanical measurement

🛠️ Service Notes

• Check the replacement is the sensor specified for your engine and instrumentation — sensors sharing a thread can have quite different characteristics, and a mismatch gives plausible but wrong readings
• Let the engine cool and depressurise the system before removing a sensor from a coolant or oil passage, and be ready for the fluid that will come out
• Clean the threads and sealing face in the housing, fit a new sealing washer or O-ring where one is used, and do not pack the threads with sealant on a sensor that earths through its body
• Tighten to the figure in the workshop manual with a spanner on the hexagon only — these bodies crack easily and the thread in an alloy housing is easily stripped
• Reconnect the plug or terminal clean and secure, route the lead clear of hot and moving parts, then top up, bleed and run the engine and check the reading is sensible and steady while watching the joint for weeps

🔄 Supersession & Cross Reference

OEM Supersession Chain

• 21084672 → Supersedes 3586830

OEM / Related Numbers

• 3586830 earlier number superseded by this part

Other-Brand OEM Numbers

• VOE21084672

📦 Condition

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