Whether you're running an engine swap or want manual control over your factory JK cooling fan, Novak's E-PWM Controller is the ultimate solution.

These Pulse Width Modulation fans are efficient. But to run it outside the stock chrysler control systems, you need the right signal. That's where Novak's E-PWM module comes in.

Applications

Swap Applications (GM or other engines)

Use our E-PWM Standalone Kit to integrate your Pentastar fan into a swapped Jeep or hot rod. It reads from a standard GM-style temperature sensor and gradually ramps fan speed based on coolant temperature.

Factory Engine JK Owners

Take control of your PWM fan without worry of PCM unlocking and tuning.

• Pair the E-PWM controller with our 1.5" hose splice with NPT bung below
• Splice in the supplied temp sensor to your radiator hose
• Adjust the E-PWM knob to your desired temperature
• Use the supplied manual trigger inputs for auxiliary switches or A/C override
• A Feedback wire for the Jeep TIPM to prevent false CELs
• When the E-PWM is powered off, the Stock TIMP will seamlessly resume fan control

Features at a Glance

• Full PWM control
• Adjustable temp dial from 180-210°F with smooth ramp-up
• Low-idle fan mode (1.5A) to prevent heat soak (optional)
• Accepts 12V or Ground triggers for A/C, PCM, or dash switchs
• Sends feedback signal to TIPM (stock JK) to prevent CEL
• Simple DIP switch & knob for settings adjustment
• LED indicators for mode status
• Made in America

Installation Notes

• Requires 12V key-on power and ground
• Mount in a dry location, away from exhaust
• Use basic tools (solder & heat shrink recommended)
• Supports GM PCM control and/or included temp sensor

Compatibility

• ✔️ 2012-2018 JK Wrangler Pentastar fans (green control wire)
• ✔️ 2018+ JT Gladiator fans
• ✔️ 2010-2019 Camaro SS Fan
• ❌ Not for 2007-2011 JK fans (purple wire). Upgrade fan to 2012+ for compatibility.

What's in the Box

E-PWM Controller

• E-PWM Module
• GM-style 3/8 npt temp sensor
• Wiring harness
• Instructions (PDF)

Optional 3/8 NPT hose splice (purchase in related products below)

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