Thread: Hayden 2747 & 2797 fan clutches
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Old 06-27-2020, 09:17 PM
pngoat pngoat is offline
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Join Date: Dec 2005
Location: Madison, Wisconsin
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Default Hayden 2747 & 2797 fan clutches
Does anyone know at what temperature the Hayden 2747 & 2797 fan clutches activate? the 2747 is listed as heavy duty & the 2797 is listed as severe duty. The activation temperature is not listed for either one. Stock cooling system, with shroud, on a 65 GTO 389. Any help appreciated. Thank You.

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