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Black Aluminium Door Threshold Side Sill Protectors
Protect your Porsche's interior while restoring the original
factory appearance with these OE Match Black Aluminium Door Threshold Side Sill
Protectors Manufactured to replicate
the original factory specification, these direct replacement threshold
protectors provide the correct fit, finish and durability for early air-cooled 911
models.
Fits:
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
Diagram ref no 33
Finished in black anodised aluminium, these threshold trims protect the painted door sills from scuffs, scratches and everyday wear while adding a smart, factory-correct finishing touch to the cabin. Ideal for restoration projects or replacing worn original trims, they help preserve both the appearance and value of your classic Porsche.
What Do the Door Threshold Side Sill Protectors Do?
Door threshold protectors are designed to shield one of the highest wear areas of the vehicle.
Their primary functions include:
- Protecting the painted door sill from scratches and scuff marks.
- Reducing wear caused by entering and exiting the vehicle.
- Providing a durable protective surface over the sill panel.
- Enhancing the appearance of the interior door opening.
- Delivering the original factory-style finish expected on early Porsche 911 models.
These trims not only improve appearance but also help preserve the bodywork beneath.
Why Do Door Threshold Protectors Fail?
After years of regular use, the original sill protectors can become damaged through constant foot traffic and exposure.
Common causes of deterioration include:
- Scratches and abrasion from footwear.
- Dents caused by impacts or heavy objects.
- Fading or wear of the black anodised finish.
- Corrosion from trapped moisture.
- Distortion during removal or previous repairs.
- Loose or damaged mounting points.
Worn threshold trims can significantly detract from the appearance of an otherwise well-maintained or restored interior.
When Should They Be Replaced?
Replacement is recommended when:
- The aluminium trim is scratched, dented or corroded.
- The original finish has faded or worn away.
- The protectors have become loose or damaged.
- Completing a full interior or body restoration.
- Repainting or repairing the door apertures.
- Returning the vehicle to factory-correct specification.
Replacing worn sill protectors provides an immediate improvement to the appearance of the vehicle while protecting newly painted bodywork from future damage.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90155111
The product you are viewing cross references to these numbers
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)

