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Rampage Radiant Backseat Heater - 300 Watt - 12 Volt

Rampage Radiant Backseat Heater - 300 Watt - 12 Volt

Item # RA3501
Our Price: $121.51
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Shipping Weight: 3 lbs
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Keep backseat passengers warm and cozy with this compact, 300-watt heater. Bolt the unit to the floor of your Jeep or other off-road vehicle and wire it into any 12V power source, and it will radiate heat throughout your vehicle. Great Prices for the best vehicle heaters from Rampage. Rampage Radiant Backseat Heater - 300 Watt - 12 Volt part number RA3501 can be ordered online at or call 1-800-940-8924 for expert service.
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  • Reviews (7)
  • Q & A (0)
  • Videos (2)
  • Photos

Rampage Vehicle Heaters - RA3501

  • Interior Vehicle Heater
  • Rampage

Keep backseat passengers warm and cozy with this compact, 300-watt heater. Bolt the unit to the floor of your Jeep or other off-road vehicle and wire it into any 12V power source, and it will radiate heat throughout your vehicle.


  • Backseat heater provides extra warmth for your Jeep or other off-road vehicle
  • 300-Watt unit radiates heat quickly and efficiently
  • Easy-to-access toggle switch lets you turn heater on and off
  • Integrated swivel mount allows you to adjust position of unit
  • Simple, universal installation
    • Wires into any 12V power source
    • Bolts securely to vehicle's floor with pre-drilled mounting bracket


  • Dimensions: 8" tall x 7" wide x 6" deep
  • Power draw: 12 volts
  • Current draw: 25 amps
  • Wattage: 300 watts
  • Limited 1-year warranty

3501 Rampage Back Seat Radiant Heater

Video of Rampage Radiant Backseat Heater - 300 Watt - 12 Volt

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

Video Transcript for Rampage Vehicle Heaters - Interior Vehicle Heater - RA3501 Review

Today we're going to be taking a look at part number RA3501. This is the Rampage Radiant Backseat Heater. The backseat heater is going to provide extra warmth for your vehicle. It's going to be ideal to be used in vehicles, boats, campers, tractors, and off-road equipment, off-road vehicles, a wide variety of applications that you could choose to use this for. It's going to feature a 300-Watt unit that's going to radiate heat quickly and efficiently. The special treatment on the blower window is going to reduce the risk of a burn. It's got a nice little felt pad on it.

That way the actual element right here isn't going to get hot enough to actually burn you if you we're to touch it. It's got a very easy to access toggle switch that's going to let you turn the heater on and off. The down position is going to turn on both the fan and the heat. The middle position is going to be the off position. Then the up position is going to run the fan only without heat. Right here, you're going to have the fan speed control. It can be rotated clockwise for high speed when it comes to the fan or it can be rotated counter-clockwise for low speed.

In each position, you're going to have 4 different options as far as speed goes, whether it's high fan or low fan. It's going to feature the integrated swivel mount that's going to be here on the bottom. You can see how it connects like a little ball joint here on the sides. It's going to allow the fan to be able to be tilted up you to adjust position of unit or to be able to to go down. That way you can totally customize the angle that the heat or that the air is moving or blowing. Here on the bottom, I just want to take a look at the mounting bracket. It's a simple, universal installation mounting system. The overall length that we have of the mounting bracket is going to measure 7-5/8 of an inch.

The overall width of that bracket is going to give us a measurement of 2-9/16 of an inch. The mounting holes, center on center, are going to be separated by 5 inches. The mounting hardware is included. This unit is designed to wire into any 12-volt power source. You can bolt the bracket securely to the vehicle's floor with a pre-drilled mounting holes inside the bracket. Again, it does come with the hardware. Now these wires, we measured them.

They measure about one-on-one feet in length, just over 11 feet in length. It should be plenty of wire to run to your battery. The red and black wires are going to connect to the terminals. They're going to supply power to the heater. The dimensions of the heater itself, if we measure the overall length or width, that's going to give us a measurement from the outside of the mount to the outside of the mount on the other side. It's going to be about 7-3/4 of an inch. The overall height is going to be about 6-3/4 of an inch. Then the overall depth or thickness is going to give us a measurement of about 5 inches. The power draw is going to be at 12 volts. The wattage is going to be 300 watts. That's going to do it for our review of RA3501. Also, on the red wire, I want to go and show you that it has the fuse connected as well as already installed. It comes with that as well. This is the Rampage Radiant Backseat Heater. .

Customer Satisfaction Score:

Customer Reviews

Rampage Radiant Backseat Heater - 300 Watt - 12 Volt - RA3501

Average Customer Rating:  4.0 out of 5 stars   (7 Customer Reviews)

Keep backseat passengers warm and cozy with this compact, 300-watt heater. Bolt the unit to the floor of your Jeep or other off-road vehicle and wire it into any 12V power source, and it will radiate heat throughout your vehicle.


This heater is being used to supplement an existing heater in a van. I like that it was very easy to install. I also like the physical size of the heater. After using it throughout some cold days in November I felt that it might be best suited for a very small enclosed space, like the size of a tractor cab in temperatures that don't go below 45F. I wouldn't recommend it for an area larger than 300 cubic feet. I can barely feel the heat emitting from the unit when my hand is 6 inches directly in front of it. I went into the purchase with fairly low expectations so I'm glad that I didn't spend more than $[XX] to purchase this heater.


Okay, not great. Think for my application, I would choose something different. Quality is just so so. Not a great value for the price paid


Awesome unit. Works great.


The amount of heat is weak. Just too sm all.

Etrailer Expert

Jenny N.


I do have another heater that you can consider, part # KH37100. This one plugs into standard 120-volt AC outlet and uses 900 watts.


Wish it could put out more heat, otherwise it works well.


This product is far greater than I expected! It actually puts out more heat than it is in size. Great investment I love it!


Fast delivery good product.


See what our Experts say about this Rampage Vehicle Heaters

  • Recommended 12V Heater for Motorhome
    For your 12V RV heater replacement, I recommend the Rampage Radiant Backseat Heater - 300 Watt - 12 Volt # RA3501. This heater has and integrated swivel mount and is 8 inches tall x 7 inches wide x 6 inches deep. I've attached a video to assist.
    view full answer...
  • Will The Rampage Radiant Backseat Heater Work As A Replacement For A RV Cargo Heater?
    The Rampage Radiant Backseat Heater # RA3501 will absolutely work as a replacement cargo heater for your RV. This heater has a universal installation design that will allow you to wire this into any 12V power source, and can be bolted to the floor using the included mounting bracket. Additionally, this 300-watt unit measures 8" tall x 7" wide x 6" deep, has a power draw of 12 volts, and has a current draw of 25 amps. I have also included a review video for you to check out as well.
    view full answer...
  • Could Thermostat Be Used with Rampage Radiant Backseat Heater # RA3501
    As long as you have a 12 volt power source for the Rampage Radiant Backseat Heater # RA3501 you could install a thermostat switch on the power wire so that it would only come on in a certain temperature range.
    view full answer...
  • How Does the Rampage Radiant Backseat Heater # RA3501 Install
    To install the Rampage Radiant Backseat Heater # RA3501 you will simply need to route the Red wire to the positive terminal and then ground the Black wire or route it to the negative terminal on your battery. This heater does work with a 12V system and you can splice in a thermostat if needed. I have attached a review and installation video that you can use as a reference since there are no schematics available for the installation.
    view full answer...
  • What is Amperage Draw of Rampage Radiant Backseat Heater # RA3501
    The Rampage Radiant Backseat Heater # RA3501 will draw 25 amps when used which I believe will limit the range of your electric car quite a bit. How much so depends on the vehicle though. You could compare the amperage draw of this to the draw of your current heater to get a decent comparison.
    view full answer...
  • Can Rampage Radiant Backseat Heater # RA3501 be Powered by Solar Panel Generator
    The Rampage Radiant Backseat Heater # RA3501 draws 25 amps or 300 watts at 12 volts to function. So of the two solar generators you mentioned you'd need the 500 watt option and it would work well.
    view full answer...
  • Determining How Long The Rampage Radiant Heater RA3501 Will Run On 500ah System W/ 200w Solar Panel
    I would be happy to walk you through how to calculate your power usage while powering the Rampage Radiant Heater # RA3501 overnight, but I have no way to calculate this for you as there are way too many variables. Instead you will want to follow the included help article to monitor your power usage overnight. While it is geared towards solar panels it still is the same as in what you are wanting to do. I also included a video of the # RA3501 for you to take a look at.
    view full answer...
  • Heater Options for Interior of Older GMC Truck
    You'd have to check the wattage of your inverter to determine if it could power the Kat's Heaters Vehicle Interior Heater # KH37100 that you referenced. If it's rated for 900 watts or more this would work but if it's lower rated it would not. Otherwise we have a 12 volt heater that could be wired directly to your battery with the part # RA3501 which puts out a decent amount of heat.
    view full answer...
  • Will Using Rampage Heater # RA3501 Drain Battery On 1985 Ford Ranger Overnight
    The Rampage Radiant Backseat Heater, part # RA3501, has a 300 watt output. If left on all night, it will probably drain the battery on your 1985 Ford Ranger. I would recommend a second battery as the power source for your heater. It would eliminate the need to hook the cables from the heater to the truck battery. I also recommend a charger like the NOCO Genius # 329-GENIUS5. This charger will automatically switch to trickle mode to maintain the charge on the battery, which prevents overheating...
    view full answer...
  • Recommended Wiring Instructions For The Rampage Radiant Backseat Heater
    The 12v cigarette lighter outlets we carry aren't going to be rated for a 25amp power draw so you would need to wire the Rampage Radiant Backseat Heater - 300 Watt - 12 Volt # RA3501 either directly to the battery with a in-line fuse holder like # SWC9539 or to the DC distribution panel in your RV's power center with a 25 amp fuse. The # RA3501 isn't really designed to be connected to a cigarette lighter style outlet but I'm assuming you're wanting this so that you can unplug and remove...
    view full answer...
  • 12V Space Heater for Warming Bed w/ a Hard Shell Cover
    Depending on the seal around your hard shell's opening and whether or not you have side windows you would have no problem using a 300 watt heater like the Rampage Radiant Backseat Heater item # RA3501 to keep you warm. A 300 watt heater is designed to warm a room that is 30 square feet. Your short bed 2019 F-150 will be right at that square footage. You will need the Rear View Safety Cigarette Lighter Adapter item # RVS-505 to power this heater. You will also want to make sure you have...
    view full answer...
  • Do Kat's Heaters Defrost Fans Put Out Heat
    The Kat's Heaters Defrost Fan # KH43101 does not put out heat. It is just a "heavy duty" fan to better circulate the warm air inside of your vehicle. If you're wanting something that will actually put out heat you could use the 12-Volt Heater and Defroster # PTW5009 or the Rampage Radiant Backseat Heater # RA3501.
    view full answer...
  • How to Use A Portable Heater in My ATV
    We have had great reviews for the Rampage Radiant Backseat Heater part # RA3501. It uses a 12V power source so you can wire it directly to the battery of the Cub Cadet. As long as you are using it while the ATV is started it should not drain the battery. If you leave the heater on while the ATV's engine is not running then it can drain the battery. You can wire the heater to its own 12V battery and use a trickle charger part # CTEK56353 to maintain the battery's charge. I am not sure...
    view full answer...
  • Recommended Heater for the Interior of a 2016 Dodge Grand Caravan for Camping in the Van
    Your best option is going to be an electric heater. The other options are heaters that use heated vehicle coolant which means you would have to have your 2016 Dodge Caravan running to maintain the heat. To avoid draining the battery down as fast I recommend a heater that uses the least amount of wattage. That would be Kat's heater # KH37650 which is rated at 150 watts. If you are the only one camping out in the van then this heater would be enough. But if there are 2 or more people in...
    view full answer...
  • What Cigarette Lighter Conversion Kit Do I Need for My Lithium Battery to Power a Rampage Heater?
    If you have the Rampage Radiant Backseat Heater - 300 Watt - 12 Volt # RA3501, you will be able to power the heater by using your lithium battery. This heater will provide you with enough heat that you need for a small cargo van. The universal conversion cigarette lighter cord you need is the Rear View Safety Cigarette Lighter Adapter # RVS-505. This solution will require splicing of your battery's wires. If you need a battery that will provide you with the power you need for your heater,...
    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...
  • Available RV Heaters for 1987 Winnebago Brave
    We offer RV heaters including several sizes of the Camco Olympian LP Gas Safety Heaters like # CAM57331, # CAM57341 and # CAM57351 for small, medium and large RVs. We also have 12V heaters such as the Rampage # RA3501 and also AC-powered heaters like the Arcon Portable Electric Heater # AR64408. All of our RV heating items are shown on the linked page. I checked the owners manual for the 1987 Brave but no details about the heating system are mentioned so you can review the linked page...
    view full answer...

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Info for this part was:

Employee Leah B
Edited by:
Leah B
Employee Lindsey S
Written by:
Lindsey S
Employee Michael H
Expert Research:
Michael H
Employee Jameson C
Expert Research:
Jameson C
Employee Jeffrey L
Expert Research:
Jeffrey L
Employee Jacob T
Video Edited:
Jacob T
Employee Adele M
Updated by:
Adele M
Employee Erin H
Updated by:
Erin H
Employee Michael B
Updated by:
Michael B

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