Standard Ignition CBS-1183 Headlight Dimmer Switch

Headlight Dimmer Switch for GM Vans

Restore reliable lighting control with this Standard Ignition headlight dimmer switch, part number CBS-1183. It is built for 12-volt systems and combines headlight dimmer, turn signal, windshield wiper, and washer functions in one combination switch assembly for select Chevrolet Express and GMC Savana vans.

Key Features

• Bolt-on attachment method for direct replacement
• 3 rectangular female connector cavities with 16 male pin terminals
• Combination switch functions with turn signal control included
• Latching high beam operator and momentary high beam flasher included
• Windshield washer spray, wiper delay, and wiper speed controls included
• 5 wiper delay settings and 3 wiper speed settings
• Indicator markings included for clear operation
• New part, 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition CBS-1183 is a headlight dimmer switch designed for service replacement on 2003-2007 Chevrolet Express 1500, Express 2500, and Express 3500, as well as 2003-2007 GMC Savana 1500, Savana 2500, and Savana 3500 models without cruise control. This combination switch assembly supports the lighting and wiper functions commonly used in these vans, making it a direct-fit solution for worn or failing steering column controls. This part number, CBS-1183, is also cross-referenced to 1S3908 and 53-64744 for the same application.

What It Helps Fix

• Intermittent or non-working high beam operation
• Turn signal control that fails to respond consistently
• Windshield wiper delay settings that stop working
• Washer spray activation problems at the column switch
• Dimmer switch wear that causes unreliable headlight selection

Installation Notes and Fitment

• Fits 2003-2007 Chevrolet Express 1500, N/A, w/o Cruise Control; Combo Switch Assembly
• Fits 2003-2007 Chevrolet Express 2500, N/A, w/o Cruise Control; Combo Switch Assembly
• Fits 2003-2007 Chevrolet Express 3500, N/A, w/o Cruise Control; Combo Switch Assembly
• Fits 2003-2007 GMC Savana 1500, N/A, w/o Cruise Control; Combo Switch Assembly
• Fits 2003-2007 GMC Savana 2500, N/A, w/o Cruise Control; Combo Switch Assembly
• Fits 2003-2007 GMC Savana 3500, N/A, w/o Cruise Control; Combo Switch Assembly

Verify the vehicle is not equipped with cruise control before ordering. Confirm the connector style, terminal count, and switch layout against the original unit before installation. CBS-1183 uses a bolt-on mounting design and is intended for 12-volt electrical systems.

Quality Assurance

Standard Ignition builds this switch with copper alloy conductors to support strong electrical conductivity and reduced resistive loss. Each unit is tested for both mechanical action and electrical switching performance to help ensure consistent operation in service.