Part Number: SUM-365-160
Your cooling system is all but useless without a reliable thermostat. Summit® thermostats have a stainless steel body for long life and high reliability. They kick in just when your engine needs them.
Has a bypass valve to allow a small amount of coolant to circulate before fully opening.
Chevy small block Gen III/IV (LS-based engines).
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Some parts are not legal for sale or use in California on any pollution-controlled motor vehicles.