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Dashboard knob set, IVORY. Porsche 356A 1955-1959 ❭ SMC552IVO
- Porsche 356A 1955-59
Each one is CNC machined and polished to recreate the original Bakelite knobs. Brass inserts are used where needed.

Fits:
Porsche 356A (1955-1959)
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SMC552IVO
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
OE Match centre dashboard air vent nozzle designed as a replacement for the original factory air vent used in classic Porsche 911 models equipped with air conditioning. It replicates the original vent’s fitment, shape, and louvre function to deliver correct cabin airflow and OEM-style appearance.
The only difference is that this vent does not come with sliders / adjusters on the sides. You can position the louvres by hand though.
Fits:
Porsche 911 1975 - 1986
Porsche 930 Turbo
Porsche 912E
Diagram ref no 10.
This OE Match version is ideal for vehicles where the original centre vent has faded, cracked, failed to hold position, or has missing adjustment tabs - common issues on older cars due to age and sun exposure.
The centre dashboard air vent directs conditioned or ambient air from the heating, ventilation, and air conditioning (HVAC) system into the cabin. It lets occupants adjust airflow direction and volume for comfort, defrosting, or ventilation purposes.
Function:
Installed at the centre of the dashboard, this OE Match vent:
• Channels air from the HVAC system into the cabin
• Allows directional adjustment of airflow
• Helps balance cabin temperature and comfort
• Complements original dashboard aesthetics
Centre air vent assemblies endure heat, sunlight, and repeated adjustment, which can cause them to become brittle, cracked, faded, or loose over time. A failing vent can disrupt airflow, reduce cabin comfort, and detract from the interior’s appearance. Replacing it with an OE Match unit restores proper airflow control, eliminates rattles or misalignment, and improves the visual continuity of the dashboard.
When to replace:
• Vent louvers are stuck, broken, or loose
• Dashboard airflow is restricted or misdirected
• Interior trim looks faded or mismatched
• During HVAC servicing or dashboard restoration
• Prior to resale or show preparation
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91157106703
The product you are viewing cross references to these numbers
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)

Giving that early 1970's alloy trim effect. Our dashboard trim frames are made from high quality aluminium, extruded and milled to high precision.
Installation requires no specific tools, "Basketweave" or plain vinyl dashboard facings are not included but can be ordered separately.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
91155201020
The product you are viewing cross references to these numbers
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1975-1977 3.0L Turbo (930)
Replacement dashboard heating/defroster vent trim on classic Porsche 911, 912 and 930 models (covering years 1969–1985). This trim piece fits into the dashboard under the windscreen and gives a finished, appearance while directing airflow from the heating/ventilation system into the cabin.
Fits:
Porsche 911/912 1969 - 1986
Porsche 911 Turbo 1975 - 1977
Diagram ref no 2 (Left) or 3 (Right)
• Position: Right-hand / Left-hand side dashboard heating/defroster vent trim, beneath the windscreen
• Typical Use: Replacement during interior restoration, dash refurbishing, or when original vent trim is cracked, broken or missing
The original dashboard vent trims are often made from materials that become brittle over time. They can crack or break easily under stress or vibration - leaving gaps in the ventilation system, reducing cabin airflow, and detracting from the interior’s appearance. A missing or damaged vent trim can also rattle or misalign, compromising both comfort and aesthetics. Installing an replacement restores proper airflow, secures the vent assembly, and brings the interior back to factory-correct condition.
When to replace. Consider replacing this trim when:
• The existing vent trim is cracked, broken, warped or missing
• You are restoring or refurbishing the interior of a vintage 911, 912 or 930
• You notice impaired airflow or vent misalignment from the dashboard vents
• The dash is being removed or serviced (e.g., re-painting, wiring, HVAC work) and trim pieces have been lost or damaged
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9115524
The product you are viewing cross references to these numbers
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