RAM Under seat Compressor Mount (2009-2018 RAM 1500 / 20011 - 2025 RAM 2500/3500 / 2019 - 2025 RAM 1500 CLASSIC) WILL NOT FIT THE 1500 5TH GEN WITH THE NEW CAB — Install Guide

Important Notes

Prior to beginning this or any installation, read these instructions to familiarize yourself with the required steps and evaluate whether 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. 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.

Step 1 — Prepare the Vehicle

1. Park the vehicle on a level surface.
2. Set the parking brake.
3. Disconnect the battery terminals.

Step 2 — Remove Passenger Seat Bolts and Trim

1. Remove the plastic trim pieces to access the front and rear seat base bolts.
2. Remove all four factory seat base bolts using a 15mm and 18mm socket.
3. Remove the door-side seat trim piece. This typically comes off with a slight tug from the forward portion of the trim piece. There is one clip on the front seat leg.

Step 3 — Remove the Under Seat Jack Storage Plate

1. Remove the bottle jack, extensions, and lug wrench from the Under Seat Jack Storage Plate.
2. Using a 4mm Allen key, remove the two bolts nearest the door that secure the Jack Storage Plate to the floor.
3. There is a shoulder bolt near the center console that the Jack Storage Plate slides under. Do not remove this shoulder bolt. It will remain in place and will be used for the Compressor Mount.
4. Slide the Jack Storage Plate out through the door opening.

Step 4 — Disconnect Seat Wiring

1. Lift the front or door side of the seat to gain access to the seat wiring.
2. Unclip and disconnect any wiring between the vehicle and the seat.
3. It may be necessary to disconnect wire harness plugs.

Step 5 — Mount the Compressor

1. Mount your compressor to the Desert Does It Under Seat Compressor Mount.
2. The mounting holes for your compressor should be easily identifiable.
3. Use the provided small M6 washers to space the compressor off the Under Seat Compressor Mount. Use two washers at each mounting point, between the compressor and mount.

Mounting a Twin ARB Compressor

1. The Twin ARB compressor allows the outlet port to be configured to best suit the installation position.
2. For maximum clearance, rotate the outlet port toward the bottom of the compressor and feed the air hose underneath the compressor.
3. This is the tallest part of the compressor, so the lower you can rotate it, the better.

Mounting a VIAIR Compressor

1. Remove any rubber bumpers or standoffs from the VIAIR brackets.
2. Unbolt the "L Type" brackets from the VIAIR compressor and rotate them 90 degrees so the compressor can be flush-mounted to the Desert Does It Compressor Mount.
3. Mount the "L Type" bracket nearest the filter inward and the bracket nearest the air outlet outward.
4. Mount the VIAIR compressor with the outlet hose facing the passenger door.
5. From underneath the Desert Does It Compressor Mount, bolt through the mount and into the VIAIR "L Type" brackets.

Step 6 — Prewire the Compressor

1. Before installing the compressor under the seat, prewire the compressor according to the instructions included with your compressor.
2. We suggest routing the power wires to the engine bay through the factory holes under the seat.
3. Route all wires so they are free and clear of any hazards or high-heat areas.

Step 7 — Protect the Door Trim

1. Use painter's tape to protect the plastic trim at the backside of the front door opening.
2. This will help prevent the plastic trim around the door surround from being scratched or marred during installation.

Step 8 — Install the Compressor Assembly

1. With the compressor mounted to the Desert Does It Compressor Mount and the plugs prewired, prepare to install the assembly under the passenger seat.
2. Roll the backseat window down.
3. Push the passenger seat headrest toward the driver side.
4. The outside seat legs will need to be lifted off the floor by approximately 1.5 inches or more.
5. With the seat lifted, slide the compressor assembly under the seat.
6. Catch the shoulder bolt from Step 3 with the long slot in the Compressor Mount.
7. Push the assembly under the seat until you can see the two holes on the floor nearest the door.

Step 9 — Secure the Compressor Mount

1. Take the two long M6 bolts with large washers and thread them through the Compressor Mount into the floor.
2. NOTE: Some models only use one bolt to secure the factory jack in place. The other threaded hole may be plugged and will need to be cleared before use.
3. The rear bolt is best accessed from the back seat with the seat pushed all the way forward.
4. The front bolt is best accessed from above the rocker switch hole on the Compressor Mount.

Step 10 — Secure Wiring and Check Seat Movement

1. Use the provided zip ties to secure all wires so they are free and clear of any hazards or high-heat areas.
2. Loosely reinstall the seat bolts.
3. Confirm the seat has full range of movement.
4. If needed, remove the seat and correct any obstructions.

Final Check

• Confirm the Compressor Mount is securely attached to the vehicle floor.
• Confirm the shoulder bolt is properly captured by the long slot in the Compressor Mount.
• Confirm all wiring is secure and clear of hazards and high-heat areas.
• Confirm the compressor and all fittings are securely mounted.
• Confirm the seat has full range of movement.
• Confirm the seat weight sensor and wiring have not been damaged or obstructed.
• Reinstall all applicable seat bolts and trim pieces.

DesertDoesIt.com - Check bolt torque at regular intervals and don’t forget to post a review.