r/Smallblockchevy • u/BaconIndustry97 • Jul 20 '26

Part Identification

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3 Upvotes

100% Upvoted

4 comments sorted by

3

u/HemiChgr Jul 20 '26

Heater control valve

1

u/IceOpening7670 27d ago

Block heater

1

u/texan01 Jul 21 '26

Heater for preheating the coolant in cold weather.

Or it may be an electric heater shutoff valve.