Triumph Norton Lucas 2SH Front Hydraulic Brake Light Switch PN# 34619 G

The later Norton Commando and 1979-onward Triumph 750 models equipped with hydraulic front disc brakes specified the Lucas 2SH brake switch. This genuine Lucas reproduction switch is a direct replacement for the original 2SH front brake switch specified as part numbers 34619, 06-1934, and 60-7155. The switch senses when increases in hydraulic brake fluid pressure are applied and triggers the circuit to close and send the electrical signal to the tail lamp bulb bright filament. The switch is fitted to a T-shaped block with inlet and outlet Bundy pipes threaded in to allow the flow of brake fluid from the master cylinder. The hydraulic brake system must be purged of air after fitting the switch. Two wire leads are connected to terminals on the switch. Key Features: Quality and Authenticity: Made to O.E.M. Factory Specifications Functionality: Activates the brake light when the front brake is applied. Operates using hydraulic pressure from the brake system, ensuring reliable connection between brake application and light activation Thread Specifications: 3/8″ x 24 UNF thread The product images shown are for illustrative purposes only and may not be an exact representation of the product received. Manufacturers occasionally make minor cosmetic changes to items, such as color, finish, label, or design. These changes do not impact the item’s function or compatibility. Please contact us if you have specific concerns regarding appearance.