OE Part Number: 078919501B
Do you have an early A4 chassis TDI? Odds are you have a blue 4 pin coolant temperature sensor.
Later years use the green sensor which we also stock.
Look at your connector to be sure - the blue sensor uses a rectangular 4 pin connector.
(The green sensor uses a round 4 pin connector.)
Includes one temp sensor seal and a clip (not shown)
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