On air-cooled Porsche 911s of the 964 (1989 to 1994) and 993 (1994 to 1998) generations, the interior parts that age first are usually the centre console trim, switch surrounds, air vents and parcel-shelf caps, because these are high-touch plastic pieces exposed to heat and UV. When an original is cracked, warped or no longer obtainable, an aftermarket reproduction made to the original dimensions can be a practical way to bring the cabin back to standard.
Which 911 generations does this cover?
The 964 was the third generation of the 911, built from 1989 to 1994, and introduced all-wheel drive on the Carrera 4. The 993 followed from 1994 to 1998 and is widely noted as the last air-cooled 911, as well as the first to offer a six-speed manual across the range.
Both share a broadly similar interior architecture, so many trim concerns and inspection points overlap. Parts are not interchangeable across every area, however, so always check the specific fitment for your chassis and year before ordering.
Why does 964 and 993 interior trim age?
These cabins are now more than 25 years old, and the plastics were never designed to last indefinitely. Several factors combine over time:
- Heat cycling from sun through the glass, which makes plastics brittle.
- UV exposure that fades and chalks dark surfaces.
- Repeated handling of switches, vents and console panels.
- Cleaning products that can soften or mark some finishes.
The result is trim that cracks, warps, loses its grain or no longer clips home securely.
What should you check first?
Start with the parts you touch most and the panels most likely to have been removed before:
- Centre console trim and trays: look for cracks at screw points and stress marks along the edges.
- Switch surrounds and panels: a known issue on both generations is the small tabs that retain the console switch panel breaking off, so the panel no longer sits flush and tends to pop out.
- Air vents: check that the vanes still move and stay where set, and that the vent housing is not cracked.
- Parcel-shelf caps and rear trim: these often fade unevenly and can warp at the edges.
- Switch faces: worn symbols and intermittent operation point to age and contact wear.
Repair the original or fit a reproduction?
Whether to save a part or replace it depends on its condition and how it has aged. As a rough guide:
- Light wear or fading: careful cleaning, and in some cases recolouring, can be enough.
- Broken retaining tabs: small repair kits exist for some console switch panels, which can be more proportionate than replacing the whole piece.
- Cracked, warped or missing trim: this is where a reproduction part usually makes sense, particularly when an original is no longer available.
Keep any original fixings and clips you remove. They are often reusable and can be awkward to source separately.
How do reproduction parts help when originals are unavailable?
Supply of original trim for these cars has thinned over the years, and certain pieces are simply hard to find in usable condition. Reproduction parts are made to the dimensions of the original component so they can fit in place of the part they replace. For a restorer, that means a route to completing an interior without waiting for a serviceable used piece to appear.
These are aftermarket reproductions produced by an EU workshop and made to order, with model and year references used purely to indicate fitment. They are not original manufacturer parts. As with any fitment-referenced component, confirm the part matches your exact variant and trim level before purchase. If you are working through a wider refresh, our Porsche 911 trim parts collection is a useful starting point for browsing by area.
Tips for a tidy interior refresh
- Photograph each area before you dismantle it, so reassembly is straightforward.
- Work in sections rather than stripping the whole cabin at once.
- Test electrical switches before and after refitting to isolate any contact issues.
- Allow lead time, as made-to-order parts are produced after you order.
Taken methodically, a 964 or 993 interior refresh is a manageable project. Inspect honestly, repair what is sound, and use reproduction trim where an original is past saving or no longer available.