STMGW 16-inch Electric Radiator Fan Kit — 10-Blade Reversible Fan with Thermostat & Relay

This complete kit pairs a high-torque 120 W motor with S-curved wide blades and a brass temperature probe to automate cooling for radiators, condensers, oil coolers and transmission coolers. Designed for universal fitment, the fan delivers up to 3,000 CFM and includes a thermostat that turns the fan on at 180°F and off at 165°F, plus a relay and wiring harness for safer, reliable switching. Blades and wiring can be reversed so the unit functions as either a pusher or puller depending on your mounting preference.

How will this fan fit my vehicle and mounting setup?

The STMGW 16" fan is built for universal use and is compatible with most radiators and cooling cores. It mounts using standard fan brackets or zip-tie systems and works well in tight engine bays because it offers reversible airflow and a slim profile. The included 3/8" NPT brass probe with a 1/2" NPT adapter lets you position the thermostat sensor where it reads coolant or ambient air temperature accurately.

• Universal bracket-friendly design for radiators, condensers and coolers
• Reversible blade/wiring orientation for pusher or puller setup
• Includes 3/8" NPT probe and 1/2" adapter for flexible sensor placement
• Compact mounting footprint suits tight engine compartments

What performance can I expect from the motor and blades?

The kit uses a high-torque motor with sealed ball bearings and fully balanced S-curved blades to deliver efficient airflow at low noise. Rated at 120 watts, the motor can spin up to about 2,000 RPM and the assembly offers a maximum airflow around 3,000 CFM under optimal conditions. Balanced construction and sealed bearings contribute to reduced vibration and longer operational life.

• 120 W high-torque motor with sealed ball bearings for durability
• Reversible 10 S-curved wide blades for maximum airflow
• Maximum ~3,000 CFM and ~2,000±10% RPM performance range
• Fully balanced blades reduce noise and vibration

How does the thermostat, relay, and wiring improve reliability and control?

This kit’s thermostat probe activates the fan at 180°F and deactivates it at 165°F, offering automated temperature control that prevents unnecessary runtime. A dedicated relay handles the motor’s current draw so vehicle switches and circuits are protected, while the wiring harness simplifies installation and reduces the chance of wiring errors. The brass thread-in probe provides a stable, repeatable temperature signal for consistent operation.

• Thermostat turns on at 180°F and off at 165°F for automatic operation
• Included relay protects vehicle circuits and handles motor current
• Thread-in 3/8" NPT brass probe with 1/2" adapter for secure sensor mounting
• Wiring harness simplifies installation and reduces electrical stress

Who is this for: The STMGW 16" Electric Radiator Fan Kit is ideal for mechanics, DIY enthusiasts and custom builders who need a reliable, high-flow cooling solution for performance engines, retrofit projects and cooling upgrades. It suits owners of cars, trucks, ATVs and light commercial vehicles who want automated temperature control, reversible airflow options, and a durable fan motor that balances power with quiet operation.