【Vehicle Compatibility】Compatible with 2011-2016 GM 6.6L Duramax LML diesel models. Fits Chevy Silverado 2500HD 3500HD, GMC Sierra 2500HD 3500HD, Express 2500/3500/4500, and Savana 2500/3500/4500. Please confirm your vehicle year, model, and engine before ordering
【2-Wire 2-Pin Design】Designed as a 2-wire 2-pin SOTF switch for LML Duramax applications. The 5-position selector allows easy switching between preset levels when used with a compatible tuning setup
【5-Position Selector Knob】Features a clear 5-position rotary design for quick and convenient adjustment. The dial plate helps identify each position, while the compact knob offers smooth operation from the driver area
【Durable Construction】Built with a knurled aluminum control knob, heat-resistant wiring, and protective split loom tubing. Designed to resist heat, wear, and vibration for reliable use in demanding vehicle environments
【Installation Reference】Package includes 1 SOTF switch, 1 split loom tubing, 1 black control knob, 1 dial plate, and 1 hex wrench. Wire reference: Yellow wire to Pin 11, Black wire to Pin 35. Professional installation is highly recommended