Mishimoto MMFAN-PWM-UBK For Pulse Width Modulation Fan Controller - Black

Vehicle Fitment

• Universal--fits any vehicle with 12 V brushed electric fans up to 50 A total draw.

Fitment Notes

• Pulse-width modulation (PWM) control adapts to coolant temperature from 0-100% fan speed.
• Includes A/C override circuit and thermal protection; works in any application requiring variable fan control.

Features

• Controls multiple fans up to 50 A capacity.
• Integrated 80 A relay with soft-start reduces electrical load and noise at startup.
• Automatic resetting circuit breaker for enhanced electrical safety.
• A/C override circuit triggers 30% fan speed when A/C is active.
• Thermal protection shuts system down at ~195 °F to prevent overheating damage.
• Potted circuit board and heat-sink housing resist vibration and high engine-bay heat.
• Soft-start control saves battery load and softens fan engagement.
• Backed by Mishimoto's industry-leading Lifetime Limited Warranty.

Specifications

• Part Number: MMFAN-PWM-UBK
• Fan Type Compatibility: Brushed 12 V electric fans only
• Current Capacity: Up to 50 A total fan draw
• Relay Output: Built-in 80 A relay
• Activation Method: Adjustable temperature dial (approx. 110-190 °F)
• Override Input: A/C or manual switch (activates fans at 30% speed)
• Protection Features: Auto-reset fuse; thermal shutdown at 195 °F
• Construction: Potted board with heat-sinking enclosure
• Warranty: Mishimoto Lifetime Limited Warranty

Included Components

• 1x PWM fan controller module (MMFAN-PWM-UBK)
• 1x Push-probe temperature sensor
• 1x NPT temperature sensor
• 6x Mounting screws
• 1x Wiring diagram

Product Description

The Mishimoto MMFAN-PWM-UBK Universal PWM Fan Controller offers precise, temperature-based control of up to 50 A of brushed 12 V electric fans. Through its smart PWM technology, the controller smoothly regulates fan speed from 0 to 100% based on coolant temperature, dramatically reducing electrical draw, noise, and component wear.

Packed with features like soft-start circuitry, auto-reset breaker protection, a functional A/C override, and high-temperature shutdown at ~195 °F, this rugged module ensures reliable operation in demanding engine environments. Built with a vibration-resistant potted board and equipped with flexible sensor options, it's a simple bolt-in upgrade for a modern engine bay--backed by Mishimoto's Lifetime Limited Warranty.