Arctic Cat Alterra 400 high beam and low beam headlight bulbs both utilize HS1 size bulbs for optimal illumination. The replacement chart covers 2016 through 2017 production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The HS1 is the bulb type used across both the high beam and low beam headlight positions on the Arctic Cat Alterra 400 for the 2016-2017 model years.
The HS1 is a dual-filament halogen bulb, meaning a single bulb contains two separate filaments to serve both high and low beam functions within one unit.
The HS1 operates at 12 volts and carries a 35W/35W power rating, where each wattage figure corresponds to one of the two filaments.
The HS1 uses a PX43t base, which is a specific bayonet-style fitting type. Bulbs with different base types are not physically interchangeable with this socket.
The HS1 is governed by ECE standards, a regulatory framework used in Europe and various other markets worldwide, rather than SAE standards used in North America.
The 2016 Arctic Cat Alterra 400 specifies the HS1 specifically for vehicles equipped with halogen capsule headlamps, indicating that not all 2016 units may share the same headlamp assembly type.