3D Printed Cabin Air Filter Adapter for Jeep Wrangler TJ/LJ (2003–2006) – Fits JK Filter FDC11777 – PETG

Upgrade your 2003–2006 Jeep TJ/LJ with a functional cabin air filter – 3D printed and easy to install!
Tired of trail dust and pollen blowing directly into your Jeep’s cabin? This custom 3D printed Cabin Air Filter Adapter lets you retrofit a modern air filter to your TJ or LJ’s HVAC intake system — a feature never included from the factory.

✅ Product Highlights:

• ✔️ Compatible with:
  Jeep Wrangler TJ (2003–2006)
  Jeep Wrangler LJ Unlimited (2004–2006)

• ✔️ Uses single JK filter:
  Fram FDC11777 or equivalent (2011–2017 Wrangler JK models)

• ✔️ Includes:

  • 3D printed base adapter

  • 3D printed filter holder

  • Screws for mounting

  • Optional STL files or split version for small printers (upon request)

• ✔️ Material:
  Heat-resistant PETG or ABS – safe for engine bay conditions

• ✔️ Print Settings (for reference):
  0.3mm layer height, 2 top/bottom layers, 30% cubic infill

🧰 Installation Instructions:

1. Remove the factory cowl cover (between the hood and windshield)

2. Take out the stock HVAC duct (if present)

3. Place the adapter base around the factory flange

4. Install the filter holder on top

5. Insert your filter (follow airflow arrow)

6. Screw the adapter down and reinstall the cowl

No special tools required. Total time: ~10 minutes

💡 Notes:

• This part is rugged and made for function, not showroom looks

• Designed with off-roaders and DIYers in mind

• Optional split-version available for small printers – message us!