Dual Electric Fan Relay Kit Temperature Sensor Switch - Reliable

In this review the Dual Electric Fan Relay Kit is evaluated for installers and DIYers who need a straightforward temperature-controlled solution to prevent engine overheating. The bottom line: this kit stands out for its simple, effective design and the included 185F on / 175F off thermostat switch, which is the single biggest reason to buy - it automates fan operation so cooling happens only when needed. The kit is most useful when converting to electric fans or replacing relay and switch components without hunting for separate parts.

Key Features

• Efficient Cooling: Compatible with 10in, 12in, 14in, and 16in fans and includes a 60 amp relay so it can drive common single or dual radiator fans reliably.
• Temperature-Controlled: The thermostat switch with 185F on and 175F off points keeps engine temperature in a narrow range to reduce idling run time and prevent overheating.
• Complete Wiring Kit: The wiring harness, 4-pin relay, fuse holders and a clear wiring diagram simplify installation for both conversions and replacements.
• Waterproof Components: Fuse holders and relays are designed for durability in wet conditions, which helps maintain reliable operation in all weather.
• Versatile Use: Works across cars, trucks and marine applications and supports single or dual fan setups for broad compatibility.

Who It's For

This kit is ideal for home mechanics, shops doing electric fan conversions, and owners replacing old radiator fan relays who want a temperature-controlled, all-in-one solution. It suits projects where compatible fan sizes are 10in to 16in and a 60 amp capacity is sufficient.

Those who need factory-specific plug connectors or higher current capacity for very large fans should look elsewhere, since the kit focuses on general wiring harnesses and may not include every OEM-style connector.

Pros & Cons

Pros

• Includes a clear wiring diagram and all main components for a straightforward install.
• The thermostat switch reliably activates at 185F and turns off at 175F for tight temperature control.
• Waterproof fuse holders and durable relay parts improve longevity in harsh conditions.

Cons

• Some users report the kit does not include OEM plug connectors, so additional connectors may be needed.

Specifications

Our Verdict

The Dual Electric Fan Relay Kit is a practical, value-oriented choice for anyone converting to electric fans or replacing cooling components. Its temperature-controlled switch, 60 amp relay and waterproof fuse holders deliver dependable performance in common automotive and marine uses, and the included wiring diagram speeds installation. Buy this if you want reliable automated fan control without sourcing many separate parts.

Frequently Asked Questions

Will this kit run two fans?
Yes, the kit is designed for single or dual fan setups and includes a 60 amp relay suitable for typical dual fan configurations.

What temperature does the switch use?
The thermostat switch closes at 185F and opens at 175F to maintain a narrow operating range.

Are OEM plug connectors included?
The kit includes a wiring harness and most fasteners, but some users note OEM-style plug connectors may not be supplied and could be added separately.