71R0100 Red Dot Toggle Switch – 3 Terminal, SPDT, On-Off-On

The Red Dot 71R0100 (RD-4123-1P) Toggle Switch provides reliable On-Off-On control for mobile HVAC and auxiliary electrical circuits. Its SPDT configuration allows switching between two outputs or modes, making it ideal for applications such as fan direction, speed selection, or system mode control. This switch uses three terminals and a durable black toggle design suited for dash panels and control enclosures. With standardized mounting dimensions and blade-style terminals, it is widely used as an OEM replacement across multiple truck and off-highway platforms from manufacturers including Freightliner, Volvo, Mack, and Western Star. Product Specifications Red Dot Part No.: 71R0100 Red Dot Factory Part No.: RD-4123-1P Description: Toggle Switch Type: SPDT (Single Pole / Double Throw) Function: On – Off – On Finish: Black Number of Terminals: 3 Terminal Type: Blade terminals Dimensions Base Length (A): 1 1/8″ Base Width (B): 5/8″ Flange to Blade End (C): 1 3/32″ Flange to Bezel Shaft Top (D): 1/2″ Thread Diameter (E): 15/32-32 UNS-2A Keyway (F): .072″ x .038″ Cross Reference Numbers Texas Truck AC: 850-7148 AirSource / MEI: 1030 Alliance: ABP N83 322185, ABP N83 322345 Bergstrom: 650643 Climatech / TRP: BE10600 CoolStar / MEI: 901-1114 Freightliner: 1-6664, 22-0417, A06-11454-001 Kysor: 2199009 Mack: 4379-RD41231, 7979-220417 Motivair: 23377, 32874, 44584 Truck Air / MEI: 11-2601, 44866 TruckAC : T2437 TTA/C: 10-1014 Volvo: 176266, 3093411, G2028503 Western Star: 60090-4417 Red Dot – Aftermarket: 71R0100 Red Dot – Factory: RD-4123-1 Additional Interchange Numbers:1-1592, 1-2323, 1-4090, 1030, 11-2601, 176266, 2199009, 232-8348, 36680, 4379-RD41231P, 650643, 7979-220417, 850-7148, 925515, ZGG11592, ZGG16664, SWI1114, RDT71R0100