This part number supersedes to 99361360200 Genuine Porsche part 90161561620

Code: 90161561620

Genuine Porsche part

This part number supersedes to 99361360200

Additional information:

• This part is brand new and unused.
• Please verify that it is 100% suitable for your specific vehicle before purchase to ensure compatibility.

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Concave door switch washer. Porsche 911 / 912 / 964 / 993

90161561520/1

Product Information

Concave / Contact Switch Washer (Door Switch / Interior Contact)

The OE MATCH Concave / Contact Switch Washer is a precision-moulded replacement component designed to provide secure positioning and support for the door contact switch on classic Porsche models.

Fits:

Porsche 911 1965 - 1989
Porsche 912 1965 - 1969
Porsche 964 1989 - 1994
Porsche 993 1995 - 1998

Diagram Ref No 30

Manufactured to match the dimensions and specifications of the original Porsche component, this concave washer fits beneath the door contact switch, helping maintain correct seating and alignment at the mounting point.

The door contact switch forms part of the vehicle's interior lighting circuit, detecting when the door is opened or closed. By supporting the correct installation and positioning of the switch, this washer contributes to reliable switch operation and helps prevent unwanted movement or misalignment.

Ideal for replacing worn, cracked, damaged or missing original washers, this OE MATCH component is a practical solution for routine maintenance, electrical repairs and classic Porsche restoration projects.

What This Product Does:
Although a small component, the concave contact switch washer performs several important functions:

Supports the Door Contact Switch: Provides a correctly shaped seating surface beneath the switch at its mounting location.
Maintains Switch Alignment: Helps keep the door contact switch correctly positioned for consistent operation when the door opens and closes.
Improves Mounting Stability: Helps prevent unwanted movement or looseness around the switch mounting point.
Supports Interior Lighting Operation: Helps maintain the correct positioning of the switch responsible for activating the interior light when the door opens.
Protects Surrounding Components: Provides a suitable interface between the switch body and its mounting surface, helping reduce localised wear or damage.
Maintains Original-Style Fitment: Replaces the original washer while preserving the correct appearance and assembly of the door contact switch.

Symptoms Of Wear Or Failure:

Over time, the original contact switch washer can deteriorate due to age, repeated door operation, vibration and environmental exposure. Common signs of wear or damage include:

Cracked or Broken Washer: Visible fractures or deterioration around the washer.
Loose Door Contact Switch: The switch may move or sit incorrectly within its mounting location.
Intermittent Interior Lighting: The interior light may fail to activate consistently when opening the door if the damaged washer affects switch positioning.
Interior Light Remaining On: Incorrect switch seating or alignment may contribute to the switch failing to register a closed door.
Switch Misalignment: The door contact switch may appear tilted, recessed or incorrectly positioned.
Missing or Deteriorated Washer: The original component may be absent, distorted or damaged during previous maintenance.
Unstable Switch Operation: Movement at the mounting point may contribute to inconsistent switch activation.

Important: Interior lighting faults may also result from a defective contact switch, damaged wiring or poor electrical connections. The washer should be inspected as part of the overall switch assembly.

Why Replacement Matters:
Replacing a worn or damaged concave door contact switch washer helps maintain the correct installation, stability and operation of the door contact switch.

Key Benefits of Replacement:

Restores correct seating and positioning of the door contact switch.
Helps maintain consistent interior light switch operation.
Reduces unwanted movement or looseness at the mounting point.
Replaces cracked, deteriorated or missing original washers.
Helps protect the switch mounting area from unnecessary wear.
Provides original equipment-style fitment and dimensions.
Supports reliable maintenance of the vehicle's interior lighting system.
Ideal for classic Porsche restoration and preventative maintenance.

A damaged or missing washer may appear insignificant, but incorrect door contact switch positioning can contribute to electrical operation issues. Replacing the washer is a simple and cost-effective way to help maintain the functionality and originality of the vehicle's door switch assembly.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90161561520

90161561520

The product you are viewing cross references to these numbers

Courtesy lamp switch cover for door. Porsche 911 / 964 / 993 Coupe

99361360200/1

Product Information

Courtesy lamp switch cover for door.
Rubber cover/cover for the door contact switch (night light or door lock switch) used in classic Porsche 911, 964, and 993 models. Protects the switch underneath from moisture, dirt, and wear while maintaining the correct appearance and fitment of the original equipment. Manufactured to Porsche specifications.

Fits:
Porsche 911 1965 - 1989
Porsche 964 1990 - 1994
Porsche 993 1994 - 1997

Diagram ref no 10

• Position on Vehicle: Mounted over the door-contact switch (courtesy-lamp switch) at the door frame or body edge, covering the exposed switch mechanism.

• Applications: Ideal when the original rubber cap has cracked, gone missing, faded or is no longer sealing the switch properly - preserving correct function of door-open lamp circuit and maintaining clean appearance.

Although small, this rubber cap plays a key role in protecting the door-contact switch from moisture and contaminants, which ensures the courtesy-lamp, door-ajar indicator and electrical circuit remain reliable. A degraded or missing cap can allow water ingress, leading to corrosion of the switch, erratic lamp behaviour or eventual failure. Installing a correct replacement ensures dust-free operation, preserves your wiring and maintains the exact fit and finish Porsche intended.

When and why to replace:
• The rubber cap is cracked, swollen, melted, missing or no longer seals the switch properly.
• You notice malfunctioning door-ajar lights, erratic courtesy-lamp behaviour or corrosion at the switch.
• During door trim removal or restoration when access is already provided.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

99361360200

90161561620

99361360200

The product you are viewing cross references to these numbers

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This part number supersedes to 99361360200 Genuine Porsche part 90161561620