Jump to content
  • On Board Air install! pic intensive

       (0 reviews)


    Thanks to chknkatsu over on CumminsForum for this one.


    Took me a long to figure out how i wanted to do this without interfering with the everyday use of the truck, that meant not eliminating the spare or taking up bed space. I also wanted two compressors for quick recovery and redundancy in the case of one of the compressors going bad. I also wanted to make sure all the wiring terminations and relays were easily accessible. I sized the wires accordingly to reduce voltage drop.

    making a relay/fuse board. It was difficult trying to find a good spot for the relays and fuse that was accessible so i decided to mount it on the fuse box cover with rubber bushings. All the studs are welded onto the board from the backside.

    I used the DEF tank mount as my mount for the compressor

    because there isnt a flat surface on the DEF tank mount i welded studs onto the mount to mount a plate, all the terminations coming from the engine bay are done in a junction box mounted to the DEF tank mount cover so i can easily access it by removing two bolts and dropping the cover.




    because of the way the tank is going to be mounted i had to plug up and add my own ports and drain.

    tank is 2 gallons and 19" long, just enough to fit between the body mount and interior cubby on the passenger side. I welded extended feet to accept 8.375 U-bolts to bolt it to the frame rail which would mount the tank sideways as opposed to putting the feet on the bottom. I was having issues with some of the plugs leaking so i decided to just weld them shut to avoid future problems. I may relocate the air chuck to a more convenient location in the future.





    I decided to run both compressors off one switch for now, that may change later on. There is a panel on the left side of the steering wheel directly above the parking brake release that makes for a perfect auxiliary switch panel. My truck comes with aux switches but i decided to save them for future use.


    Here is the final wiring, I added wing-nuts with rubber bushings so i can easily remove the fuse/relay panel.

    the compressors fill the tank up to 150psi in a little over a minute. These are not the highest output compressors you can get from Viair, but they were the industrial line that were more durable with 100% duty cycles. I value reliability over output, another reason why i ran two compressors instead of one.

    Hope you guys enjoyed

    User Feedback

    There are no reviews to display.

  • Create New...

Advertisements and Ad Blockers

Mopar1973Man.Com uses the income from advertisers to pay the bills on the website. Please whitelist your ad blockers for Mopar1973Man.Com this will allow advertisements to display on our pages but allows you to still block ads on the other websites you visit. 



I will whitelist Mopar1973Man.Com