Volvo Penta Temperature Sensor 21531072 | OEM D11 D13 D16 Engine Temp Sensor

Volvo Penta Temperature Sensor Part #21531072

This is the genuine OEM temperature sensor for selected Volvo Penta D-series diesel engines. It monitors coolant and oil temperature, feeding real-time data to the engine management system for accurate gauge readings, fault detection, and overheating protection. Sold individually as a direct OEM replacement.

Part Details

• Part Number: 21531072
• Brand: Volvo Penta
• Official Product Type: Temperature Sensor
• System: Engine Management / Sensor Circuit
• Condition: New OEM
• Sold: Individually

Superseded / Cross-Reference Part Numbers

• 21531072 Current OEM part number
• 20513340 Previous Volvo Penta reference (superseded by 21531072)
• 22328781 Previous Volvo Penta reference (superseded by 21531072)
• 20450685 Earlier associated sensor reference shown in Volvo Penta application diagrams

Compatible Applications

• Volvo Penta D11 series marine and industrial diesel engines
• Volvo Penta D13 series marine and industrial diesel engines
• Volvo Penta D16 series marine and industrial diesel engines
• Volvo Penta D6-300A through D6-300G
• Volvo Penta TAD11-series industrial engines
• Volvo Penta TAD13-series industrial engines
• Volvo Penta TAD16-series industrial engines
• Selected TWD16-series generator engines
• D7A-A TA and D7C-A TA sensor assemblies (per parts diagram)
• Serial number confirmation required sensor position and fitment vary by engine generation and serial range

Technical Specifications

• Function: Coolant / oil temperature monitoring
• Interface: Engine management and sensor circuit
• Fitment: Direct OEM replacement no modification required
• Estimated Weight: Approx. 0.05 kg
• Note: Confirm diagram position in your engine’s parts diagram before installation this sensor appears in multiple locations across engine families

Parts Desk Insights

Best Use Case: This sensor is the right call when you’re seeing inaccurate temperature readings, intermittent temperature data, temperature-related alarms, or fault codes pointing to the sensor circuit on a D11, D13, or D16 engine. It’s also a smart replacement during any major service where the sensor has high hours or shows signs of corrosion at the connector.

Common Issues: Because part 21531072 appears across several engine families and sensor positions, the most common ordering mistake is choosing by appearance rather than by serial number and diagram position. Two sensors can look identical but have different calibration curves. Always match by engine serial number if you’re unsure, send us your serial number and we’ll confirm the right part before you order.

When to Replace

Replace this sensor when the engine displays inaccurate temperature readings, intermittent temperature data, temperature-related alarms, or diagnostic fault codes associated with the sensor circuit. Before replacing, inspect the wiring, connector, and surrounding harness for corrosion or damage these are often the root cause and should be addressed at the same time.

Service Interval

Temperature sensors are not a scheduled replacement item. Replace on condition when fault codes, erratic readings, or physical inspection indicate sensor failure. Inspect the connector and wiring at each major service interval.

Technical FAQ

Q: How do I know which sensor position this fits on my engine?
A: Cross-reference your engine model and serial number against the Volvo Penta parts diagram for your specific engine. This sensor appears in multiple positions across D-series engines diagram position is the most reliable confirmation method. Contact us with your serial number if you need help.

Q: My old part number is 20513340 is 21531072 a direct replacement?
A: Yes. 21531072 is the current OEM part number that supersedes 20513340 and 22328781. It is the correct replacement for those earlier references.

Q: Should I replace the connector when I replace the sensor?
A: Inspect it carefully. If the connector shows corrosion, cracking, or a poor seal, replacing it at the same time prevents a repeat fault. We carry Volvo Penta connector kits contact us if you need one.

Related Parts

• Volvo Penta Pressure Sensor 866833 commonly serviced alongside temperature sensors
• Volvo Penta Connector Kit OEM Electrical Connector Set replace connector at same time if corroded
• Volvo Penta Connector 21338633 related electrical connector
• Volvo Penta Wiring Harness 21138239 inspect harness during sensor replacement
• Volvo Penta Oil Pressure Pipe 21506563 related engine monitoring component