SKU: DER16720
UPC: 083277167201
MPN: 16720
The DERALE 180F Fan Switch Thermostat Relay Kit with 1/8-inch and 3/8-inch ports is engineered for automotive enthusiasts and mechanics who demand precise engine temperature control without factory limitations. This relay kit is essential for custom cooling system builds, performance upgrades, and vehicles running modified engines where stock fan switches fall short.
Whether you're tuning a street machine, restoring a classic, or optimizing a high-output build, this thermostat relay eliminates guesswork and delivers repeatable, reliable fan engagement at exactly 180 degrees Fahrenheit. Built by DERALE, a trusted name in cooling system components, this switch operates as an intelligent thermal relay that triggers your electric fan motor at a precisely calibrated temperature threshold.
The dual-port configuration—1/8-inch and 3/8-inch threaded connections—accommodates both tight engine bay spaces and standard coolant passages, giving you installation flexibility across different platform architectures. This kit works perfectly for builders installing aftermarket electric fans, tuning radiator performance on turbocharged or supercharged engines, and anyone upgrading beyond OEM thermal management.
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