Lucas 31788 Off On On Switch 57SA, BCA4294 & 1H9077 for Mini, MGB Triumph Norton

Genuine Lucas three position toggle switch with a black Lucas paddle lever, featuring five ¼” Lucar connectors. This Off-On-On motorcycle headlamp switch is designed for head and side lights.

Also used on Land Rover Series 2A 3, MG, and Mini, this switch is known by part numbers BCA4294 and 1H9077.

Supplied complete with one fixing nut and crinkle fixing washer, brand new and Lucas boxed.

• Switch operation: Off-On-On.
• Current rating: 15 Amps at 12 Volts.
• Minimum panel mounting hole: 14.5mm.
• Maximum panel thickness: 5mm.
• Switch body dimensions: 39 x 27 x 32mm deep excluding Lucar terminals.

Note: This is a genuine Lucas switch and should not be confused with the poor quality reproduction ones available.

As original equipment in the headlamp shell of later British motorcycles (BSA, Triumph, and Norton), it is also compatible with Mini Mk 1, 2, and 3, Land Rover 109 2.25 for the headlamp and side lamp switch, and Lotus Elan S3 heater switch (Austin Rover number 1H9907). Additionally, it is ideal for use as a general-purpose switch for kit car and specials builders.

See our shop for more classic car and motorcycle parts, including those for Triumph, MG, Mini, Austin Healey, BSA and Norton.