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Thermostat, Coolant (ACDelco) 90~95 [9B3]

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0.13 LBS
Calculated at checkout
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Product Description

Thermostat, Coolant 180F. Fits 90~95 ZR-1 LT5 engine. One thermostat is required. 

This is a NEW, ACDelco thermostat, complete with seal.

NOTE:  Beware of thermostats listed as correct for the ZR-1 Corvette!  We have checked a number of thermostats offered by Autozone, Advance Auto & O-Reillys, in brands such as "FailSafe" "Murry & "Duraguard" and found all of these brands to be incorrect for the LT5 cooling system.  The bypass valve does not have the calibrated notches that regulate coolant flow volume through the bypass.  Without these notches, the bypass will allow too much coolant flow to bypass the radiator resulting in hotter engine temperatures and possible overheating. 

None of the auto supply stores checked carried the thermostat for the ZR-1 in stock.  It took 7 days for a special order from Autozone only to receive an incorrect thermostat.

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