Porsche 718 911 991 982 Cayman Anti Theft Alarm Sensor 99161821005

Porsche 718 911 991 982 Cayman Anti Theft Alarm Sensor is an original electronic component by Porsche, designed to work with the vehicle's factory security system. This used component allows for an economical yet professional repair of the alarm system while maintaining proper communication with the car's electrical installation.

Specifications and technical data

• SKU: 99161821005
• Mark: Porsche
• Condition: Used
• OEM Part Number: 99161821005
• Substitutable numbers: 99161821005, 991 618 210 05
• Category: Transmission Sensors

Purpose and function of the alarm sensor

The anti-theft alarm sensor in Porsche 718, 911, 991, 982 Cayman models is responsible for monitoring selected vehicle environment parameters and transmitting signals to the security system control unit. A properly functioning component ensures stable alarm operation, reduces the risk of false alarms, and supports effective response to unauthorized attempts to interfere with the vehicle.

The original sensor from the Transmission sensors group is designed to work with the vehicle's bus and other electronic modules, which facilitates diagnostics and integration with factory software.

Benefits of using an original Porsche sensor

Using an original component in a Porsche alarm system provides a number of practical benefits:

• maintaining compatibility with the vehicle's factory electrical and electronic architecture,
• stable cooperation with existing control modules,
• reduced risk of communication errors and warning lights on the instrument cluster,
• easier computer diagnostics in the service center thanks to predictable operating parameters.

For the user, this means more predictable alarm system operation and the ability to restore full security functionality without the need for costly replacement of larger components.

Characteristics of the used component

The presented sensor comes from the used original parts segment, which allows for combining reasonable cost with maintaining proper operating parameters. This type of component is particularly attractive for repairing vehicles that are a few years old, where the priority is matching the existing installation and limiting expenses compared to purchasing a new component.

The used Porsche anti-theft alarm sensor will work well both for a typical replacement of a damaged element and for system reconstruction after a collision or interference with the electrical installation.

Application in service practice

This type of element is often used in professional workshops specializing in the Porsche brand, where repeatability of parameters and compliance with service documentation are important. Thanks to its factory origin, the sensor can be easily included in standard diagnostic procedures, which facilitates the verification of correct installation and operation of the alarm system after repair.

If you are planning a comprehensive repair or upgrade of the drivetrain and security area in your Porsche and need other elements from the same group, such as additional position sensors, sensors working with the gearbox, or elements monitoring system operation, check the available parts in the Porsche transmission sensors category.

More about choosing used electronics

When selecting a used alarm sensor, it is worth paying attention to compatibility with the vehicle's installation and the method of testing the component before installation. Additional tips on assessing the condition of automotive electronics, rules for selecting modules and sensors, and practical service advice can be found in the article: The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?