Derale 190F Fan Switch Thermostat 200410107 Lower center design adds engine

Lower center design adds engine oil pan clearance

X1 regulator

please see part #5376

C5-R5 Valve

Torqueflite 727 / 904

Derale 190F Fan Switch Thermostat 200410107 Lower center design adds engineReplacement 3 8" NPT thread in temperature probe threads into water jacket port. Designed to work with Derale part numbers 16739 & 18739. Features: Single stage fan control thermostat with 190? F turn on temperature Single stage fan control thermostat with 190 degreesF turn on temperature, Turn off temperature is preset at 175 degreesF, Fits into either a 3 8" NPT or 1 8" NPT port, 3 8" NPT x 1 8" NPT bushing includedDerale has been the leader in