Pop four clips, swap the filter, done. The JL 3.6L Pentastar uses Mopar 68257030AA — replace it every 30,000 miles or sooner if you run dusty trails.
The JL's airbox sits at the front passenger corner of the engine bay with four metal spring clips holding the lid down. No tools required for a stock replacement — though a flathead screwdriver helps pry the clips if they've never been opened. The whole job runs about 10 minutes and the OEM Mopar filter is $20–25 from any dealer or Quadratec. Aftermarket drop-ins from K&N or aFe are double the price; the genuine Mopar paper element flows plenty for a stock 3.6L and traps finer dust than oiled cotton-gauze filters.
Open the hood and look at the front passenger side. The airbox is the big black plastic shroud with the intake snorkel running up to the cowl. Run a finger along the seam between the lid and the lower box — you'll feel the four spring clips, two front and two rear. Pop each clip outward with your thumb or a screwdriver tip. Lift the lid up and toward the front of the Jeep; the intake tube on the back stays connected, the lid hinges.
The old filter pulls straight up. Note its orientation — the rubber seal sits on top, the pleats face down. Wipe out any leaves or dirt in the lower airbox with a shop rag before dropping the new filter in. Don't blow it out with compressed air unless you've removed the MAF sensor tube — debris can fire backward through the system and contaminate the mass airflow sensor.
Drop the new filter in with the seal facing up and pleats facing down. Press the lid back down — make sure the front edge tucks under its lip — and snap the four clips back into place. Pull on the lid once to confirm it's seated. If you feel air whistle through the seal when the engine runs, the lid isn't fully clipped.
Most JL owners running pavement-only can stretch this to 40,000 miles. Phoenix dust, Moab trips, or sand washes drop the interval to 15,000–20,000. Hold the old filter up to a shop light; if you can't see light through it, it's overdue.
| Part | Vendor | Est. price |
|---|---|---|
| Mopar OEM Air Filter (3.6L Pentastar) | Mopar | ~$22 |
| K&N Drop-In Performance Filter | K&N | ~$60 |
| Mopar Performance High-Flow Filter | Mopar Performance | ~$65 |
Written and maintained by an AZ wheeler and driveway wrencher. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.