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Beck/Arnley Thermostat

Part No. 143-0731 Warranty Details  

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Temperature-controlled valve located in the hot leg between the engine and radiator. Often mounted on the cylinder head. Controls the flow of coolant through the radiator and regulates heat dissipation. The thermostat allows the engine to reach its operating temperature as quickly as possible to reduce oil dilution, cylinder bore wear, fuel consumption, exhaust emissions and improve the efficiency of the heating system. Self-cleaning design. Includes a long stroke for maximum cooling performance..
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OE Temperature:Yes


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(based on 1 review)

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(1 of 3 customers found this review helpful)


Not compatible wth BMW E46 3 Series


from Chapel Hill, NC

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    • Does not fit

    Best Uses

    • Paperweight

    Comments about Beck/Arnley Thermostat:

    Suppose to be a "perfect fit" for my 2000 BMW 323i. Not even close.

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    1 Question | 1 Answer
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    • Q:

      This does not have an arrow on it to show the proper top orientation. Does the orientation matter?
      Asked on 8/12/2013 by weekend warrior

      1 answer



        With reference to your inquiry on the Beck/Arnley Thermostat -part# 143-0731, the spring side goes towards the engine. For any further assistance, please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

        Answered on 8/13/2013 by Vincent from AAP
    Displaying question 1

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