4 Wheel Drive Switch 4WD Selector Control Switch For Chevy Silverado GMC Sierra 1500 Switch Gmc Sierra 4x4 4WD Selector Control Switch Fit For Cadillac, Chevrolet,GMC Fit for: Cadillac 2006-2007 Cadillac Escalade ⸱with Auto 4WD, with RPO Code NP8... Reference Number: 15067877, 19168769, 1S4252, FWA116, TCA-31, SW4523, 901-162 OE Replacement Wheel Drive Selector Switch, Directly Fit 4WD Selector Switch 19168765 15027104 Compatible with Fits Chevrolet Avalanche 2500 2002, Silverado 2500/2500 HD/3500 2001-2002, Suburban 2500 2001-2002 This kit has all the needed wiring to safely run a larger fuel pump, without you having to worry about the pressure not being enough for proper combustion