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Reverse Light Switch

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01E941521B
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Reverse light switch.

porsche

Fits:
Porsche 987.1 Boxster S 2005-08 6-speed manual transmission
Porsche 987.2 Boxster / S 2009-12 6-speed manual transmission
Porsche 981 Boxster / S / Spyder 2012-16
Porsche 982 (718) Boxster / S 2017>>

Porsche 987C.1 Cayman S 2005-08 6-speed manual transmission
Porsche 987C.2 Cayman / S 2009-12 6-speed manual transmission
Porsche 981C Cayman / S / GT4 2013-16
Porsche
Porsche 982 (718) Cayman / S 2017>>

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01E941521B
01E941521B
01E941521A
6ZF008621501

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01E941521B/1
Product Information
Product Information
Reverse light switch.

hella
Hella ref no 6ZF 008 621-501

Fits:
Porsche 987.1 Boxster S 2005-08 6-speed manual transmission
Porsche 987.2 Boxster / S 2009-12 6-speed manual transmission
Porsche 981 Boxster / S / Spyder 2012-16
Porsche 982 (718) Boxster / S 2017>>

Porsche 987C.1 Cayman S 2005-08 6-speed manual transmission
Porsche 987C.2 Cayman / S 2009-12 6-speed manual transmission
Porsche 981C Cayman / S / GT4 2013-16
Porsche
Porsche 982 (718) Cayman / S 2017>>

Click 'Zoom in' for large parts diagram.
Diagram ref no 9

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Related, superseded, cross reference or alternative numbers for comparison.

01E941521B
01E941521B
01E941521A
6ZF 008 621-501
6ZF008621501

The product you are viewing cross references to these numbers
DISPLAYING 1 to 2 (of 2 products)
About Reverse Light Switch

Enhance safety and visibility with genuine and aftermarket Porsche reverse light switches from Design911. This essential component ensures your reverse lights illuminate automatically when engaging reverse gear, alerting others and improving visibility while manoeuvring your Porsche.

What They Are & What They Do

A reverse light switch, also known as a back-up light switch, is a small electrical sensor fitted to the gearbox or transmission housing. When reverse gear is selected, the switch closes an electrical circuit, activating the reverse lamps at the rear of the vehicle.
This function provides immediate illumination for safer reversing and signals to pedestrians and drivers that your Porsche is backing up — an important feature for both safety and compliance.

Why They Fail
Over time, reverse light switches can fail due to mechanical wear, corrosion, internal short circuits, or exposure to transmission oil and heat.
Common symptoms include non-functioning reverse lights, flickering bulbs, or lights staying permanently on. A faulty switch can also cause MOT test failures or safety risks by making your vehicle less visible in reverse.

Why They Should Be Replaced
Replacing a faulty reverse light switch restores proper light activation, visibility, and compliance with road-safety standards. A new OEM-quality switch ensures accurate engagement, long service life, and reliable operation under all temperature and vibration conditions.
At Design911, we offer genuine Porsche and premium aftermarket reverse light switches compatible with both manual and automatic transmissions, ensuring precise fitment and dependable performance for every model — from classic 911s to modern Cayenne, Macan, and Taycan vehicles.

Genuine Porsche Reverse Light Switches
Factory-original switches designed to meet Porsche’s exact specifications for reliability, perfect fit, and consistent reversing-light activation.

Aftermarket Replacement Switches
High-quality alternatives that meet or exceed OEM performance, offering durable, cost-effective solutions for all Porsche models.

Gearbox-Mounted Reverse Switches
Robust sensors fitted directly to the transmission case, providing immediate signal transmission when reverse gear is selected.

Classic Porsche Reverse Light Switches
Authentic reproduction switches for vintage Porsche models such as the 911, 912, and 964 - preserving originality and safety compliance.

 

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