21412472 Temperature Sensor | Genuine Volvo Penta Part

🔧 Product Description

High-temperature sensor used in the exhaust and SCR aftertreatment system on specified Volvo Penta TAD13VE engines. It measures exhaust temperature for emissions control, dosing protection and diagnostic monitoring and shares the Volvo Group reference 7421412472.

🚤 Compatibility

• Engine Family: D, TWD, TAD

Full model list at the end of this description.

⚙️ Key Features

• Genuine Volvo Penta exhaust-gas temperature sensor
• Designed for SCR-equipped TAD13VE engines
• High-temperature probe and sealed electrical connector
• Provides feedback for dosing and aftertreatment protection
• Engine type: Volvo Penta TAD13 inline six-cylinder industrial diesel with SCR aftertreatment
• 1000mm (Volvo assembly listing)

🔌 Function

Measures exhaust-gas temperature so the engine control system can protect the catalyst, validate dosing conditions and diagnose aftertreatment performance.

⚠️ Common Signs of Failure

• EGT or SCR temperature fault codes
• Fixed, implausible or erratic temperature readings
• Dosing inhibited or aftertreatment warning active
• Engine derate caused by temperature-signal failure
• Open circuit, short circuit or heat-damaged wiring

🛠️ 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

• 21412472 → Supersedes 21330888

OEM / Related Numbers

• 21330888 earlier number superseded by this part
• 10031023 - recognised heavy-duty cross-reference numbers
• 5EL022 - recognised heavy-duty cross-reference numbers
• 81043 - recognised heavy-duty cross-reference numbers
• 21234247 - associated dosing valve

Other-Brand OEM Numbers

• Bosch: 0 986 259 124

Aftermarket / Verified Equivalents

• Associated SCR sensors: 21244501, 21390063 and 21390067
• Redline Emissions Products: S11023

📦 Condition

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

🔎 Full Model Compatibility

Typically suits:

• Volvo Penta D13C3-B MH, D13C1-B MH, D13C4-B MH, D13C4-B MP, D13C5-B MP, D13C1-A MH, D13C2-A MH, D13C3-B MG, D13C4-B MG, D13C5-A MP, D13C2-A MG, D13C1-A MG, D13C7-B MP, D13C8-B MP
• Volvo Penta D16C1-E MG, D16C2-E MG, D16C1-E MH, D16C1-F MH, D16C2-E MH, D16C2-F MH
• Volvo Penta D8A6-A MH, D8A6-A MG, D8A7-A MP, D8A8-A MP
• Volvo Penta TAD1660-62VE
• Volvo Penta TAD1662VE EU5
• Volvo Penta TAD560VE
• Volvo Penta TAD561VE
• Volvo Penta TAD761VE
• Volvo Penta TAD762VE
• Volvo Penta TAD763VE
• Volvo Penta TAD764VE
• Volvo Penta TAD765VE
• Volvo Penta TWD1643GE
• Volvo Penta TWD1652GE
• Volvo Penta TWD1653GE
• Volvo Penta TWD1663GE