Brake Light Switch

Motorcycle Brake Master Cylinder Switch

For Motorcycle/Scooter Hydraulic Brake Systems

🔧 Brake Switch · Hydraulic Brake Master Cylinder · Electrical Safety Component

Thread Size: M6 / M10 (Please verify your model)

High-quality brake master cylinder switch for motorcycle and scooter hydraulic brake systems, activates brake light when braking

This product is a motorcycle brake master cylinder switch, a critical safety component of hydraulic brake systems. It is installed on the brake master cylinder. When you press or squeeze the brake lever, hydraulic fluid pressure activates the switch piston, completing the circuit and illuminating the brake light to warn vehicles behind that you are slowing down or stopping.

Riding without a functioning brake switch is dangerous, even in the best of conditions, and may lead to rear-end collisions. This switch is manufactured from high-quality materials with durable contacts and good sealing, capable of withstanding the hydraulic pressure and vibration of the brake system, ensuring the brake light illuminates correctly every time you brake.

Product Name	Motorcycle Brake Master Cylinder Switch
Application System	Hydraulic Brake System
Mounting Location	Brake Master Cylinder
Thread Size	M6 / M10 (Multiple sizes available, please verify your model)
Type	Hydraulic / Pressure Switch
Function	Activates brake light when braking

• Hydraulic Activation: Activated by brake fluid pressure, responsive and highly reliable.
• Durable Contacts: Made from high-quality conductive materials, wear-resistant for long service life.
• Sealed Design: Good sealing prevents brake fluid leakage and ingress of external contaminants.
• Pressure & Oil Resistant: Withstands high pressure of brake system, resistant to oil corrosion, suitable for harsh environments.
• Easy Installation: Direct replacement for original brake master cylinder switch, threaded mounting, simple wiring.

⚠️ Signs of Failure: Brake master cylinder switch failure may manifest as: brake light not illuminating when braking, brake light staying on constantly, brake light working intermittently, or abnormal brake light brightness. If you encounter these issues, inspect and replace the brake switch promptly.

🔧 Installation Tip: Disconnect the negative battery terminal before installation to avoid short circuits. Remove the old switch from the brake master cylinder, noting the thread size. Apply a small amount of sealant to the threads of the new switch to ensure proper sealing. Connect the wiring, ensuring correct connections. Test brake light function after installation and check for any brake fluid leakage around the switch.

⚠️ Important Note: This product is a motorcycle brake master cylinder switch for hydraulic brake systems. Different vehicles may use different thread sizes (commonly M6 or M10). Please verify your original switch thread size before purchasing. The brake switch is a critical safety component; replace faulty switches promptly. Images are for reference only; actual product may vary slightly.