12V Universal Underdash Heater with Speed Switch for Cars & Trucks

US 12V Universal Underdash Heater with Speed Switch for Cars & Trucks

Stay warm during the chilly months with our 12V Universal Underdash Heater. Designed to utilize your vehicle's engine coolant, it efficiently heats your cabin without the need for fuel consumption. With a powerful design that significantly outperforms battery-powered heaters, you can enjoy a cozy ride regardless of how cold it gets outside. ❄️🔥

Key Features

  • Energy-efficient design that maximizes heat output.

  • Utilizes hot coolant from the engine, mimicking your factory cooling system.

  • High-efficiency copper pipe heating core warms air quickly.

  • Powerful blower motor with four outlets for effective air distribution.

  • Comes with mounting brackets and a speed control switch for easy under-dash installation.

Our under-dash heater operates similarly to your vehicle's factory cooling system. Hot coolant flows through an efficient heating core, and a robust blower motor propels warm air into the passenger area, ensuring a comfortable driving experience. This environmentally friendly option saves on fuel while delivering reliable heating performance.

With a lightweight of approximately 3 kg, this heater is compact yet capable. The dimensions (23 cm × 21 cm × 10 cm / 9.3" × 8.5" × 3.9") make it an ideal fit for various vehicles, including trucks, minivans, excavators, and harvesters. Its functionality is powered by a 12V connection, drawing only 8A of electricity.

Specifications

  • Color: Grey

  • Voltage: 12V

  • Power Supply: 8A

  • Material: Copper, Iron

  • Weight: 3 kg

  • Size: 23 cm × 21 cm × 10 cm (9.3" × 8.5" × 3.9")

  • Required Fitting: 5/8" (16 mm) inner diameter water hose

  • Applicable Models: Trucks, minivans, excavators, harvesters, etc.

What’s in the Box

  • 1 × Heater

  • 4 × Black Tubes

  • 2 × Tee Fittings

  • 2 × Mounting Brackets

  • 1 × Switch

  • 2 × Straight Fittings

  • 7 × Hose Clamps (16-25 mm)

Usage Tips

  • Ensure proper flow direction through the cooling system.

  • Connect hot coolant hoses to the heater's inlet and outlet.

  • Wire the heater and switch into your vehicle’s electrical system as instructed for optimal functionality.

Care & Maintenance
Regularly check connections and inspect hoses for wear. Ensure the heater is functioning correctly before the cold weather sets in.

Stay warm and comfortable on your journeys ahead! Upgrade your vehicle today with this dependable under-dash heater. Order now and experience the comfort of reliable warmth all season long! 📦✨

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On Mar 18, 2026 at 18:47:20 PDT, seller added the following information:

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