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How to Install Airaid Cold Air Dam Intake - SynthaMax Dry Filter (91-95 4.0L Wrangler TJ) on your Jeep Wrangler

Shop Parts in this Guide

Component Identification


1. Disconnect negative battery cable. Remove factory valve cover breather hose from airbox, and valve cover.


2. Unhook vacuum line from airbox, and remove from vehicle at the canister below the master cylinder. (Save for later use.)


3. Pry open the plastic clamp that holds the factory intake tube to the throttle body. Unhook the 3 metal latches on the airbox that hold it to the mounting plate, and remove the intake assembly.


4. Remove the two grommets from the airbox mounting plate.


5. Using a 10mm socket, remove the horn bolt. (Save for later use.)


6. Carefully remove wire loom clamp from hole in fender.


7. Assemble the Cool Air Dam as shown using the 5 screws, washers, and nuts provided.


8. Using a 9/16” wrench, loosen the nut on the radiator rod support, and lift it up.


9. Carefully slide the CAD over the support rod, and then slide the supplied grommet over the rod, and into the hole in the CAD as shown. Rotate the CAD and place into position on the factory airbox mount. Reinstall the radiator support rod, and tighten the nut.


10. Install two ¼”-20 bolts and washers thru the top, and fender washers and nuts on the bottom, where the factory grommets were removed


11. Slide the CAD bracket under the horn mount and reinstall the factory bolt from step 5.


12. A) Using a ¼”-20 bolt, washers, and nut, bolt the CAD to the fender. B) Install the wire loom clamp into the hole in the CAD, as shown.


13. Remove the factory hose from step 2, and install the new 3/8”x 4” hose on the end of the vacuum line as shown. Reinstall vacuum line. (Refer to step 2.)


14. Install the ¼” barbed fitting into the intake tube.


15. Install hump hose on CAD with #52 hose clamps, and the coupler on the throttle body with #44 hose clamps as shown.


16. Slide intake tube into the hump hose first, and then into the coupler. Adjust for a good fit, and tighten hose clamps. Slide vacuum hose on barbed fitting, and install speed clamp as shown.


17. Replace the factory breather hose with ½”x10” rubber hose between valve cover and intake tube using speed clamps as shown.


18. Install the Airaid Premium Filter and the weather strip on the CAD, as shown. (Hint: start the weather strip near the radiator support and work towards the back of the vehicle.)


19. Apply the Airaid Foil Decal onto the Panel as shown. towards the back of the vehicle.

Double check your work, make sure all nuts, bolts, and clamps are securely fastened. Make sure there is no foreign material in the intake path. Re-connect the negative battery cable.