TRD Cold Air Intake Install (2017 4Runner)
Toyota TRD Cold Air Intake Install – 2017 4Runner (P/N: PTR03-89100)
We have had quite a few emails come in about whether or not the TRD Intake fits on a 2017, 2018 and likely 2019 4Runner. Well, here it is. There have been a handful of owners email saying that it does indeed fit (as no website out there will say that it does). We even had another owner send us a few pictures of the TRD Intake on his 2017 4Runner. Although, it is always refreshing to actually see one installed before you buy it. Here is a step by step install submission that will put your questions at ease. This is the same intake that we installed on our 2014 4Runner. You can see that TRD Intake Install here.
TRD Intake Install on the 2017, 2018 4Runner
By no means am I a pro at taking instructional photo’s, but hopefully the attached makes sense. I was able to do the TRD Cold Air Intake in about an hour using an 8mm, 10mm, 12mm socket, Philips and flat blade screwdriver, wire cutters, silicone spray and electrical tape.
Step 1: Remove the engine top cover
Remove the engine top cover by gently lifting the front edge until it releases then pull the back free from the rubber grommets
Step 2: Vent tubing, vacuum tubing, and MAF Sensor
Remove the 5/8” crankcase vent tubing and the 1/4” vacuum tubing from the stock intake. Remove the MAF (Mass Airflow) sensor from the snorkel. Then walk back the wire loom and remove the press-fit anchors one at a time to completely free up the wiring harness. There are 4 of them.
Step 3: Unwrap the wire loom electrical tape from MAF sensor
Once removed unwrap the wire loom electrical tape to separate out the MAF sensor wire assembly (this is the most complex of this install). I wouldn’t recommend using a knife. Just be patient and slowly peel back the tape until you reach the 90-degree plastic anchor that is taped onto the loom.
To see a few more steps in this section, please check out the previous Install.
Step 4: Remove Stock Airbox
Remove the (3) bolts with a 12mm socket holding down the stock air box and remove the airbox. Note: there is a step where the passenger side fender liner removal is called out in the instructions for removing the air intake snorkel. This does not apply to the 2016-2018 4Runner.
Step 5: Attach Airbox Top Cover
Attach the airbox top cover hold down clamps (there’s 2 of them). I used 2 of the factory ones since they were polished by pushing down on the hold down while “wiggling” it side-to-side. To install into the new airbox repeat the process by pulling the hold down & wiggling. You’ll feel it solidly click onto the posts.
Step 6: Remove the (3) steel sleeves and grommets
Remove the (3) steel sleeves and grommets from the stock air box and reinstall them into the TRD Cold Air Intake unit. I used a flat blade screwdriver to press them out by walking them from side-to-side. I also used silicone spray on the grommet and “folded” the grommets into themselves to aid in inserting them into the hole. Press them in up to the indention in the grommet. Use a little silicone spray and press-fit the sleeves back into the grommets.
Step 7: Install the TRD rubber intake (BIG grommet)
Install the TRD rubber intake (BIG grommet) into the side fender wall. I also folded this part into itself and inserted it into the wall. Make sure the TRD logo is facing up. The TRD airbox will fit into (2) slots in the large grommet. I’ve shown a photo for clarity of it attached outside of the engine compartment.
Step 8: Re-wrap the MAF sensor wires and re-tape
Using the included split wire loom re-wrap the MAF sensor wires and re-tape using black electricians tape.
Step 9: Attach the TRD airbox
Attach the TRD airbox to the side wall grommet installed in step 7 (it’s easier to work on the MAF wire loom without the airbox in place).
Step 10: Reattach the TRD airbox
Using the (3) 12mm bolts reattach the TRD airbox to the engine bay.
Step 11: Remove the MAF sensor from the factory tube
Step 11: Remove the MAF sensor from the factory tube using a Philips screwdriver to remove the (2) screws. Be careful when re-installing as these little screws can easily strip out. The MAF sensor (is unidirectional) should be oriented where the wire connection is facing towards the front of the engine.
Step 12: Install the filter minder bulb
Install the filter minder bulb to the top of the airbox by pressing in the black rubber grommet and then pressing the minder into the grommet until it bottoms out.
- Step 13: Insert the TRD filter element
- Step 14: Attach the airbox top cover to the airbox and engage the (2) hold down clips
- Step 15: Install the red rubber sleeve to the airbox and the other red sleeve to the inlet
Step 16: Insert the snorkel tube into the airbox
Step 16: Insert the snorkel tube into the airbox first then into the intake. Note: if the motor is warm prior to starting the install, the heat from the motor will make the red silicone sleeves easier to install. I also used a small amount of silicone spray on a gloved finger to spread inside the silicone sleeves.
- Step 17: Tighten the (4) band clamps
- Step 18: Install the (2) included black plastic nipples into the silicone sleeve holes. There is one for the 5/8” crankcase vent and one for the 1/4″ (1/8” ID) vacuum line. Remove the stock vacuum line and replace it with the longer one included in the TRD hardware kit. Trim to length.
- Step 19: Reinstall the MAF sensor wire harness
- Step 20: Start the vehicle and make sure no warning indicators are on.