
Dash Mount 4WD Selector Switch
- Dash Mount 4WD Selector Switch
- 2004-2007 Buick
- 2002-2009 Chevy/GMC
- 2002-2004 Oldsmobile
- 11-Pin Terminal
Engagement of the four-wheel drive system is crucial during slick weather conditions. Dorman provides you with the security of knowing that your switch will activate every time. Special attention has been paid to electrical and mechanical details to ensure proper functioning.Easy installation; just plug it in to the mating componentDirect replacement matches original designTough plastic housing for an extended lifeTested to ensure trouble-free installation and durability
Typically 4WD Switches are located on the transfer case but in some cases may be found on the front axle. There are two types of designs--Vacuum or Electric powered.
4WD Switches typically send a signal to the 4WD actuator which engages the front axle. The Vacuum style fails when the unit's ability to regulate air pressure becomes compromised.
The Electric style fails when the electric signal becomes compromised due to corrosion. Both failures will not allow the front differential to engage, and the 4WD system becomes inoperable.