What a GC8 center console plug is and why you might print one

A GC8 center console plug is a small plastic piece that fills the gap where an armrest or storage compartment sits in a 1993–2001 Subaru Impreza. If your car came without a center console, or if you removed one and want to close the opening, a 3D-printed plug seals that space instead of leaving it exposed. The plug is purely functional — it keeps dust and debris out of the gap and gives the interior a finished look.

Most people print this part because OEM (original equipment manufacturer) replacements are expensive or hard to find, or because they want a custom fit for a modified interior. A 3D printer lets you make one at home for the cost of plastic filament, usually under $5 in material.

Key Takeaways

  • GC8 center console plugs are available as free or low-cost 3D models on sites like Thingiverse and Printables, designed specifically for the GC8 Impreza dashboard opening.
  • You will need access to a 3D printer (FDM or resin) and should read a model file in STL format, which is the standard for 3D printing.
  • Print time ranges from 4 to 12 hours depending on the model size and your printer settings, and the finished part usually requires light sanding and fitting before installation.
  • The plug installs by sliding or snapping into the center console opening — no tools or adhesive are normally needed, though some people glue theirs for a permanent fit.

Finding and downloading a GC8 center console plug model

Start by searching Thingiverse (thingiverse.com) or Printables (printables.com) for "GC8 center console plug" or "Impreza GC8 armrest plug". Both sites host thousands of free 3D models uploaded by users, and both have search filters so you can sort by print time, material, and user ratings.

When you find a model you like, read the description and look at the photos. The designer usually notes whether the plug is a press-fit (slides in and stays by friction), a snap-fit (has clips that lock into place), or glued. Check the comments section too — other people who printed it will mention fit issues, whether it needs sanding, or if the dimensions are slightly off for their car.

read the file in STL format, which is the standard file type for 3D printers. Most models come as a single STL file, though some designers offer multiple versions (different sizes, different mounting styles). Save the file to your computer or phone — you will need to transfer it to your printer or slicing software next.

Preparing the model and printer settings

Before printing, you need to load the STL file into slicing software — this is a program that converts the 3D model into instructions your printer can follow. Common free slicers are Cura (for FDM printers like Creality or Prusa) and Chitubox (for resin printers). Open the file in your slicer and check that the model is the right size — most GC8 plugs are 3 to 4 inches wide, so visually confirm it looks reasonable on your print bed.

For an FDM printer (the most common type), use standard settings: 0.2 mm layer height, 20% infill, and PLA or PETG filament. PLA is easier to print and fine for a decorative part that does not get hot. PETG is slightly more durable if you want the plug to last longer. Print time is usually 4 to 8 hours depending on the model size and your speed settings.

For a resin printer, follow your printer's standard settings for small parts — resin prints are faster (1 to 3 hours) but require more post-processing: rinsing in isopropyl alcohol and curing under UV light. Resin also produces a smoother finish than FDM, which some people prefer for a center console part.

Printing and finishing the plug

Once your printer starts, check it after the first layer to make sure the model is sticking to the bed. If you are using an FDM printer, the print will take several hours — you do not need to watch it, but check it once or twice to catch any failures early.

When the print finishes, let it cool completely before removing it from the bed. You will likely see support material (extra plastic that held the model up during printing) or rough edges where the layers meet. Use a utility knife or sandpaper to remove supports and smooth the edges. Start with 120-grit sandpaper and move to 220-grit for a finer finish. If you printed in PLA and want a glossy look, you can lightly sand with 400-grit and explore a clear coat spray paint, though this is optional.

Test-fit the plug in your center console opening before final installation. It should slide in snugly without forcing — if it is too tight, sand the edges down slightly. If it is too loose, you can add a thin layer of adhesive-backed foam tape to the back or sides to take up the gap.

Installing the plug in your GC8

Remove any old console parts or trim pieces around the opening. Clean the opening with a dry cloth to remove dust. Slide or snap the plug into place — most designs are friction-fit, meaning they stay in by pressure alone. If your model has snap clips, you will feel them lock into the sides of the opening.

If the plug is loose after installation, you have two options: add foam tape to tighten the fit, or use a small amount of plastic-safe adhesive (like plastic epoxy or contact cement) to glue it in place. Adhesive is permanent, so only use it if you are sure about the fit. Most people prefer to keep it removable in case they want to swap it out later.

Once installed, the plug should sit flush with the surrounding dashboard. If there are small gaps, you can fill them with black silicone caulk or leave them as-is — they are usually not visible from normal seating position.

Troubleshooting common printing and fit problems

If your print fails partway through, the most common causes are a dirty print bed, incorrect nozzle temperature, or the model was not positioned well in the slicer. Clean your bed with isopropyl alcohol, check that your filament is fresh (old filament absorbs moisture and prints poorly), and try again with the model centered on the bed.

If the finished plug does not fit, the model may have been designed for a specific year or trim level of GC8 — the center console opening varies slightly between 1993–2001 model years and between base and higher trims. Check the model description to see which years it was tested on. If your car is a different year, you may need to read a different version or modify the model slightly in a 3D editor like Fusion 360 or Tinkercad.

If the plug cracks or breaks during installation, it was probably too brittle — this happens sometimes with PLA in cold weather. Reprint it in PETG, which is more flexible, or print at a higher infill percentage (30% instead of 20%) for more strength.

Frequently Asked Questions

Do I need my own 3D printer to make this?

No. If you do not own a printer, you can upload your STL file to a print service like Shapeways, Sculpteo, or a local makerspace. They will print it and mail it to you, usually for $10 to $30 depending on size and material. Many libraries and community centers also have 3D printers you can use for a small fee.

What color should I print it in?

Black or dark gray matches most GC8 interiors and hides dust. If your interior is a different color (tan, gray, or red), you can print in that color or paint the finished plug with spray paint designed for plastic. Matte finishes look more OEM than glossy ones.

Will the plug stay in place without glue?

Most designs are friction-fit and stay in place without adhesive, especially if the fit is snug. If yours is loose, foam tape is a better first step than glue — it is removable and lets you adjust the fit later if needed.

Can I modify the model if it does not fit perfectly?

Yes, if you have basic 3D modeling experience. read a free editor like Tinkercad or Fusion 360, open the STL file, and scale it up or down or adjust the dimensions. If you are not comfortable editing, post a comment on the model page asking the designer for a modified version — many designers are happy to help.

How long will a 3D-printed plug last in my car?

A well-printed plug in PLA or PETG should last as long as you own the car. It does not experience heat or stress, so it will not degrade. The main risk is physical damage if something hits it hard, but that is unlikely in a center console.