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RAM Underseat Compressor Mount (2003-2018 RAM 1500 / 2003 - 2022 RAM 2500/3500 / 2019 - 2022 RAM 1500 CLASSIC) WILL NOT FIT THE 1500 5TH GEN WITH THE NEW CAB



  • 2003 - 2022 RAM HD (2500/3500)
  • 2003-2018 RAM 1500
  • 2019 - 2022 RAM 1500 CLASSIC (will not fit 5th gen with new cab)


Tools Needed

  • 15mm, 18mm, and 10mm socket w/ratchet
  • 4mm Allen Ballend Allen Key
  • Torque Wrench
  • Small flathead screwdriver or trim removal tool (to remove factory wire harness plugs)
  • Optional: Blue Loctite

Included Parts

  • 1 - Compressor Plate
  • 4 - M6 x 12mm Button Head Bolts
  • 8 - M6 Washers
  • 4 - M6 Nuts
  • 2 - Fender Washers
  • 2 - M6 1.0 x 30mm Button Head Bolts
  • 5 - Zip Ties 


Optional Kits Can Include:


  • 2 - 90 Degree Push Fittings
  • 1 - Quick Connect (Female)
  • 1 - Quick Connect (Male)
  • 1 - Bulkhead Fitting
  • 1 - Length of Airline Hose (Connect the Compressor to our Compressor Plate)



Desert Does It will not be liable for any loss, damage, or injury directly or indirectly from the use or the inability to determine the use of these products. Before using or installing, the user shall determine the suitability of the products for its intended use, and the user shall assume all responsibility and risk in connection therewith. Any modifications to your vehicle are done at your own risk.


GENERAL NOTES: Prior to beginning this or any installation read these instructions to familiarize yourself with the required steps and evaluate if you are experienced and capable of personally performing these modifications. A factory service manual for the air compressor and vehicle should be used in conjunction with these installation instructions.

WARNING: The seat weight sensor is extremely sensitive, so handle the seat very carefully. Do not drop the seat. Do not sit in the seat while it is on the floor. If the sensor is damaged, replace the unit. Failure to do so may result in personal injury or death.


  1. Step One: Park the vehicle on a level surface, set the parking brake and disconnect battery terminals.
  2. Step two: On the passenger seat, remove plastic trim pieces to access the front and rear seat base bolts. Remove all front and rear factory seat base bolts (four total w/15mm and 18mm socket). Remove the door side seat trim piece. This typically comes off with a slight tug from the forward portion of the trim piece (one clip on the front seat leg). See picture below.
  3. Step Three: Remove the bottle jack, extensions, and lug wrench from the Under Seat Jack Storage Plate. With a 4mm allen key, remove the two bolts nearest the door that are securing the Jack Storage Plate to the floor. There is a shoulder bolt near the center console that the Jack Storage Plate slides under, this shoulder bolt will stay in place and be used for the Compressor Mount. Remove the Jack Storage Plate by sliding it out the door opening.
  4. Step Four: Lift the front or door side of the seat to gain access to the seat wiring. Unclip and disconnect any wiring between the vehicle and the seat. It may be necessary to disconnect wire harness plugs.
  5. Step Five: Mount your compressor to Desert Does It Under Seat Compressor Mount. The mounting holes for your compressor of choice should be easily identifiable. Use the provided small M6 washers and space the compressor off the Under Seat Compressor Mount (two each in between the compressor and mount, see pictures).
    1. MOUNTING TWIN ARB COMPRESSOR. The twin ARB compressors allow for configuring the outlet port to best suit the installation position and desired position. To get the most clearance, rotate the outlet port to the bottom of the compressor and feed the air hose under the compressor. This is the tallest part of the compressor so the lower you can rotate it the better (See pictures).
    2. MOUNTING VIAIR COMPRESSOR. Remove any rubber bumpers or stand offs from the ViAir brackets. Unbolt the “L Type” brackets from the ViAir compressor and rotate them 90 degrees. This is so the compressor can be flush mounted to the Desert Does It Compressor Mount. The “L Type” bracket nearest the filter will be mounted inward and the bracket nearest the air outlet mounted outward. Mount the ViAir compressor with the outlet hose facing the passenger door. On the Desert Does It Compressor Mount. Bolt from the underside of the Desert Does It Compressor Mount through the ViAir “L Type” brackets.
  6. Step Six: Prior to installing the compressor under the seat, you will want to prewire the compressor per the directions included with your compressor. We suggest routing the power wires to the engine bay via the factory holes under the seat. Be sure to route all wires so they are free and clear of any hazards or high heat areas.
  7. Step Seven: With painters tape protect the plastic trim at the backside of your front door opening (see pictures). This will ensure the plastic trim at the door surround doesn't get scratched or marred in the next step.
  8. Step Eight: With the compressor mounted to the Desert Does It Compressor Mount and the plugs pre-wired, it's time to install the system under your seat. Roll the backseat window down and push the passenger seat headrest towards the driver side. You will need the outside seat legs to be lifted off the floor by 1.5” or more. With the seat lifted, slide the assembly under the seat. You will want to catch the Shoulder Bolt from Step Three with the long slot in the Compressor Mount. Push the assembly under the seat until you can see the two holes on the floor nearest the door. See Pictures.
  9. Step Nine: Bolting the compressor mount to the floor. Take the two long M6 Bolts with large washers and thread them through the Compressor Mount into the floor. (NOTE: some models only use one bolt to secure the factory jack in place, the other threaded hole might be plugged and will need to be cleared before use.) The bolt in the rear is best accessed from the back seat with the seat pushed all the way forward. The bolt in front is best accessed from above the rocker switch hole on the compressor mount.
  10. Step Ten: Use provided zip ties to secure all wires so they are free and clear of any hazards or high heat areas. Loosely reinstall seat bolts, confirm full seat movement. If needed, remove the seat and correct obstructions.