Screw In Style Fan Controller

Item #20246 Brand:Derale Performance

Made in the USA
Screw In Style Fan Controller
Newly redesigned adjustable electric fan control kit
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This newly redesigned adjustable electric fan control kit is designed to activate up to 2 fans with a total maximum draw of 25 amps. Includes a water jacket 3/8" NPT thread-in probe, relay wire harness and electrical connectors for an easy installation. A/C override circuit included. Adjustable fan controller turn-on range from 150°F - 240°F, and turn-off preset at 10°F lower than turn-on.

•Adjustable turn-on temperature from 150-240°F
•Turn-off temperature is preset at 10°F below turn-on temperature •Thread in 3/8" NPT probe
•Heavy duty 40/60 amp relay *rated at maximum 25 amp continuous draw
•AC override circuit included
•Ground circuit relay
•Note - Operates up to a 25 amp fan or two fans with a combined draw of 25 amps or less

About Screw In Style Fan Controller

A Derale fan control switch rated for up to 25 amp fans. Adjustable from 150F to 240F. The 3/8 NPT thread in plug can be inserted in the intake manifold water passage or cylinder head.Includes heavy duty 40/60 map relay and with built in A/C override circuit. Includes all wiring and detailed instructions.

Note:The 20246 fan controller comes with a 3/8” NPT temperature sensor that is designed to be installed in the intake manifold or in the cylinder head of the engine.


4 inches x 1.5 inches x 1 inch


365 days warranty. Made in USA



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