Adjustable Electric Fan Controller Push-In Probe

The PROFORM Adjustable Electric Fan Controller Push-In Probe (model 69599) is a precision engine cooling control system designed for hot rod builders, performance enthusiasts, and automotive shops seeking reliable automatic fan engagement. This fan controller eliminates guesswork from coolant temperature management by triggering your electric cooling fan at a precise setpoint, preventing engine overheating while reducing parasitic drag during lower-load operation. Whether you're street driving a classic muscle car or running a modern performance build, this controller delivers the thermal regulation serious engines demand.

The controller features an adjustable activation range of 150–240 degrees Fahrenheit, allowing you to dial in fan engagement to match your specific cooling requirements and driving conditions. Its push-in probe sensor mounts directly into the engine block or radiator, providing real-time coolant temperature feedback without complex wiring or sensor calibration. The 30-amp relay provides robust electrical capacity, safely switching high-current cooling fans with minimal voltage drop and maximum switching reliability. This solid-state design eliminates mechanical relay chatter and delivers consistent performance across repeated cooling cycles, whether you're idling in traffic or sustaining highway speeds.

Installation works best on vehicles equipped with electric cooling fans and aftermarket radiator setups where OEM fan controls are unavailable or inadequate. The compact form factor (measuring 3.45 x 3.4 x 6.85 inches and weighing just 0.82 lbs) fits easily in engine bays with space constraints. This controller suits carbureted hot rods, fuel-injected restorations, and modern performance cars alike, making it an essential upgrade for any builder prioritizing efficient thermal management and engine longevity.