3 Terminal Brake Light Switch, Boot And Connector Bundle Kit

This 3-pin hydraulic brake light switch is a direct replacement for many classic Volkswagen and Porsche models, used to activate the brake lights when hydraulic pressure builds in the braking system. It screws directly into the master cylinder and operates automatically when the brake pedal is pressed.

Unlike mechanical switches, this hydraulic switch responds to brake fluid pressure, ensuring reliable brake light activation even under light pedal input. The 3-pin design is commonly used on later systems to provide additional circuit functionality, such as brake warning lights or dual-circuit monitoring.

A faulty brake light switch can cause brake lights not working, staying on permanently, or intermittent operation, making replacement essential for both safety and MOT compliance.

Product Details

• Operating Mode: Hydraulic
• Thread Size: M10 x 1
• Connections: 3-pin
• Direct fit into master cylinder
• Boot/gaiter available separately if required

Fitting & Installation Notes

• Screws directly into the brake master cylinder
• Some vehicles are fitted with two switches – replace like-for-like based on what is currently installed
• Always check whether your vehicle uses a 2-pin or 3-pin switch before ordering
• Brake fluid may be lost during installation – bleed system if required
• Inspect wiring connectors for corrosion or poor contact
• Recommended to replace:
  • Rubber protective boot (to prevent moisture ingress)
  • Brake fluid if contaminated
• Do not overtighten – install to correct torque to avoid damaging threads

This switch is a critical safety component and should be replaced immediately if faulty.

Vehicle Fitment

Aircooled VW

• VW Beetle / Cabriolet (1970–1979)
• VW Baywindow Bus (1970–1979)
• VW Karmann Ghia (1970–1974)
• VW Type 3 (1970–1973)
• VW Type 181 Trekker (1968–1983)
• VW Buggy / Baja (1970–1979)

Watercooled VW

• VW Type 25 / T3 (1979–1992) – petrol & diesel models
• VW Golf Mk1 / Cabriolet (1975–1993)
• VW Jetta Mk1 (1979–1983)
• VW Scirocco Mk1 & Mk2 (1974–1992)
• VW Passat B1 (1973–1981)

Porsche

• Porsche 911 F-model – selected 2.0 models
• Porsche 912
• Porsche 924
• Porsche 928
• Porsche 930

Protective Rubber Boot for 3-Pin Brake Light Switches

Ensure the longevity and reliability of your 3-pin brake light switches with our high-quality protective rubber boot. Designed to shield the switch terminals from damage and moisture, this boot plays a crucial role in maintaining the integrity of your vehicle`s electrical system and prolonging the life of the brake light switch.

High-Quality Construction:

This reproduction rubber boot is crafted from durable materials, providing a snug and protective fit over the 3-pin brake light switch. It effectively guards against environmental factors such as moisture, dust, and debris, which can cause terminal corrosion and electrical failures.

Product Details:

• Material: Durable rubber for effective protection
• Quality: Reproduction, designed to meet original specifications
• Fitting: Specifically designed for 3-pin brake light switches. A 2-terminal boot is also available (see part number 411941539).
• Quantity: Sold individually

Applications:

This protective rubber boot is compatible with a variety of classic Volkswagen models, including:

• Volkswagen Beetle (1949 – 1979): Ensures the 3-pin brake light switch is protected from moisture and debris, extending its lifespan.
• Volkswagen Baywindow Van (1968 – 1979): Provides essential protection for the brake light switch in your classic van.
• Volkswagen Type 25 or T3 (1979 – 1992): Keeps the brake light switch terminals safe from environmental damage, ensuring reliable operation.
• Volkswagen Karmann Ghia (1972 – 1974): Essential for maintaining the integrity of the brake light switch in your Ghia.
• Volkswagen Type 3 (1961 – 1973): Protects the brake light switch from moisture and dirt, crucial for maintaining electrical reliability.
• Volkswagen Trekker (1968 – 1983): Suitable for off-road conditions, providing added protection for your brake light switch.
• Volkswagen Buggy + Baja (1949 – 1979): Ideal for custom builds and extreme environments, ensuring the brake light switch remains protected.

Why Choose Our Protective Rubber Boot?

• Effective Protection: Shields the 3-pin brake light switch terminals from moisture, dust, and debris, preventing corrosion and damage.
• Durable Material: Made from high-quality rubber, offering long-lasting protection in various conditions.
• Perfect Fit: Engineered to meet original specifications, ensuring a snug and secure fit over the brake light switch.

Whether you`re restoring a classic Volkswagen or maintaining your vehicle, this protective rubber boot is an essential component for ensuring the longevity and reliability of your brake light switch.

This Uninsulated Blue Push-On Electrical Spade Terminal is an essential component for quick and secure electrical connections. Designed for wires with a thickness of 1.5-2.5mm, this spade terminal ensures a reliable connection for various automotive and electrical applications. The 6.3mm spade is a standard size, making it compatible with a wide range of connectors and components commonly found in automotive, marine, and general electrical systems.

Whether you’re working on a classic car restoration, electrical repairs, or custom wiring projects, these terminals provide a simple and efficient way to create durable, removable connections. The uninsulated design allows for easy crimping, ensuring a strong and stable connection every time.

Features:

• Size: 6.3mm spade terminal
• Wire Compatibility: For use with 1.5-2.5mm thick electrical wire
• Material: High-quality metal for durability and excellent conductivity
• Uninsulated Design: Allows for secure crimping and flexible usage in various applications
• Common Use: Ideal for automotive, marine, and general electrical systems

Applications:

• Automotive electrical repairs
• Custom wiring projects
• Marine and boat electrical systems
• Household appliances and electronics

These spade terminals are designed for ease of use and reliability, making them a staple for both professional mechanics and DIY enthusiasts. The uninsulated design ensures a strong crimp connection while allowing for flexibility in usage, ensuring these terminals are suitable for a wide range of electrical applications.