Air Cooled VW 1970-1979 Master Cylinder Brake Light Switch 12V 3 Prong 113945515G

Photos

Item ID: 384-755

VW reference #: 113-945-515-G

Availability: In Stock - Ships today if ordered by 3 PM CT
Only 1 Left, Order Soon!

Fits Years:

Beetle, Standard 1970-1977
Beetle, Super 1971-1979
Bus 1970-1979
Karmann Ghia 1970-1974
Thing 1973-1974
Type 3 1962-1973

$10.99

Add To:

Create List and Add Item:

Description
Alternate Products

1970-1979 Master Cylinder Brake Light Switch 12V 3 Prong 113945515G - OEM Number(s) (113-945-515-G)

Reliable brake light activation ensures safety and preserves original VW function.

This reproduction quality brake light switch is designed to restore proper brake light operation on your classic VW. It threads directly onto the master cylinder and delivers the correct electrical signal for 12 Volt, 3-prong systems. With two switches required per master cylinder, replacing them as a pair prevents mismatched wear and avoids unnecessary brake bleeding down the road. A correct fit and solid construction mean dependable performance and peace of mind every time you press the brake pedal.

Fitment

Beetle: 1970–1979
Super Beetle: 1971–1979
Karmann Ghia: 1970–1974
Type 3: 1970–1973
Bus/Transporter (Bay Window): 1970–1979

Material/Finish

Metal body with threaded mount
Durable electrical connector housing

Dimensions

Thread size: M10 x 1.0
Length: 52mm (2.05")
Diameter (hex): 24mm (0.94")

Features/Benefits

Direct replacement for 12V, 3-prong brake light switch
Sold Individually
Two required per master cylinder for full system function
Compatible with earlier models (unused prong can be left unconnected)
Helps maintain reliable brake light signaling and road safety
VW reference part number: 113945515G

Because Details Matter
The feel of a properly working brake light switch is invisible yet vital—every press of the pedal sends a signal of safety behind you. Replacing this small but essential component restores the authentic response designed into your VW’s braking system. Keeping the electrical and hydraulic details correct is part of honoring the car’s engineering, ensuring that your vintage Volkswagen remains both authentic and roadworthy.

Tech Note: Because brake fluid bleeding is usually required after installing a new switch, we recommend replacing both switches on your Air Cooled VW master cylinder at the same time. Always match the switch type currently installed, as variations exist across models. A 3-prong switch may also be used on earlier vehicles—simply leave one prong unconnected.