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Flex-a-lite Mojave Vehicle Heater - 6 Amp

Flex-a-lite Mojave Vehicle Heater - 6 Amp

Item # FLX640
Retail:$339.95
Our Price: $276.97
You Save: $62.98
Vehicle Heaters
Shipping Weight: 6 lbs
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Flex-a-lite Mojave Vehicle Heater - 6 Amp FLX640
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Great Prices for the best vehicle heaters from Flex-a-lite. Flex-a-lite Mojave Vehicle Heater - 6 Amp part number FLX640 can be ordered online at etrailer.com or call 1-800-940-8924 for expert service.
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Flex-a-lite Vehicle Heaters - FLX640

  • Interior Vehicle Heater
  • Flex-a-lite


The Mojave heater is a compact and powerful heater that makes the job of adding or replacing a heater easy and affordable.

  • Uses heat from hot water in your vehicle's cooling system
  • Small enough to mount under the dash or under a seat
  • Dimensions: 10-1/8" wide x 9" high x 5" deep
  • Heat output: 12,000 BTU
  • 3-Speed motor
  • Power Draw: 6 amps


640 Flexalite Mohave Vehicle Heater - 6 Amp

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Video of Flex-a-lite Mojave Vehicle Heater - 6 Amp

Videos are provided as a guide only. Refer to manufacturer installation instructions and specs for complete information.




Video Transcript for Flex-a-lite Vehicle Heaters - Interior Vehicle Heater - FLX640 Review

Today we're going to take a look at the Flex-a-Lite Mojave vehicle heater. This Mojave heater is a compact and powerful heater that will make the job of adding or replacing a heater very easy and affordable. It is designed to provide cabin heat in tight places, so it's perfect for your hot rod project, antique truck, Jeep, or even a utility vehicle. It is small enough to mount under the dash or even under a seat. It does use heat from your hot coolant in your vehicle's cooling system. You connect it right here.

This kit does include everything shown here on the table. It includes the heater itself, the 3-way switch, the wiring, fuses, and all the hardware for installation and a nice set of detailed instructions. The heat output on this is 12,000 BTU. The air flow is 140 cubic feet per minute. Again, it is a 3-speed motor. Power draw is about 6 amps.

The weight of this heater is about 6 pounds. I do want to give you some dimensions, just to let you know the size of this. We'll start with the width at the widest point. It's going to be right at about 10 and 1/8th inches wide. The height from the bottom to the very top is 5 inches.

The depth of it at the widest point is going to be right at about 9 inches deep. I also want to mention that Flex-a-Lite does offer, and we do sell them separately on our website, 3 optional types of installation kits to help you install this. Also they offer 2 different add on plenums that you can snap onto the front here to change the direction of control of the heated air. Those are also listed on our website as additional items. That should do it for the review on the Flex-a-Lite Mojave vehicle heater.

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See what our Experts say about this Flex-a-lite Vehicle Heaters

  • Amperage Draw/BTU Rating/Effect on Vehicle Installed for Flexalite Mohave Vehicle Heater # FLX640
    The heat output of the Flexalite Mohave Vehicle Heater # FLX640 is 12,000 BTU and the amperage draw is 6 amps. This will actually help your Polaris's engine to run cooler. What this will end up doing is basically acting like a second, smaller radiator. The hot coolant that runs through it will be slightly cooled after running through it. Heaters like this basically act exactly like a small radiator except the wind drawn through the element is directed at you instead of on the engine.
    view full answer...
  • Could Flex-a-lite Mojave Vehicle Heater # FLX640 Fit a 2012 Polaris Ranger 500
    The Flex-a-lite Mojave Vehicle Heater # FLX640 is designed for UTVs and smaller applications like what you have but it was not custom fit for your 2012 Polaris Ranger 500. It is possible for you to install this and have it work well but it would take a bit of creativity as it's not a direct fit. I attached a review video for this heater for you to check out as well.
    view full answer...
  • Parts Necessary For Installing Mojave Vehicle Heater Inside a UTV
    You can go with the following parts for your UTV: Flex-a-lite Mojave Vehicle Heater - 6 Amp # FLX640, Utility Vehicle Installation Kit # FLX662, and optional add-on Plenum Directional Control Box with Defrost Outlet # FLX655. There are not any mounting hardware kits for the heater, however, the best way to install the heaters seems to be with self tapping screws such as Self-Tapping Screw - 1/4" -14 x 3/4" Long - Zinc # FA1131822. The optional directional control box simply snaps onto the...
    view full answer...
  • Portable Heater Options for Camper Van
    It's always a good idea to think ahead. The Flex-a-lite Mojave Vehicle Heater # FLX640 is more of a permanent installation so if you plan on moving the heater frequently we'll want to look at something else like part # RA3501 that uses a bolt-on installation, but it's small enough that you should be able to move it around and secure it to a variety of locations. I'm attaching a link to our selection of heaters that are normally used for camper applications. Some of them use 12V power while...
    view full answer...

Do you have a question about this Vehicle Heater?


Info for this part was:

Employee Jeff D
Installed by:
Jeff D
Employee Jameson C
Expert Research:
Jameson C
Employee Brian B
Written by:
Brian B
Employee Jessie B
Updated by:
Jessie B

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