Standard Ignition CBS-1251 Headlight Dimmer Switch

Headlight Dimmer Switch for Ford F-150

Standard Ignition CBS-1251 is a headlight dimmer switch built for direct electrical control in select Ford F-150 applications. It combines headlight dimming, turn signal control, windshield washer spray, and windshield wiper delay and speed functions in one replacement switch.

Fits 2004-2005 Ford F-150, N/A. Fits 2005 Ford F-150, N/A, for vehicles built to 11/28/04.

Key Features

• Bolt-on attachment method for a secure mounting fit
• Female connector with 3 connector cavities and 21 blade terminals
• 12-volt electrical design
• Includes latching high beam operation and momentary high beam flasher function
• Turn signal control included
• Windshield washer spray included
• Windshield wiper delay setting included with 5 delay settings
• Windshield wiper speed setting included with 3 speed settings
• Displayed indicator markings included for easier switch identification
• New replacement part from Standard Ignition

Detailed Description

Standard Ignition CBS-1251 is engineered with copper alloy conductors to support strong electrical conductivity and reduced resistive loss. The switch is 100% tested for mechanical and electrical switching performance, helping ensure consistent operation of the lighting and wiper controls in the vehicle. This part cross-references Standard Ignition CBS-1251 for the same application.

For Ford F-150 owners needing a replacement headlight dimmer switch, CBS-1251 restores control of high beam dimming, turn signal signaling, and windshield wiper functions through a single dash-mounted switch assembly. It is a direct-fit electrical service part for the listed Ford F-150 model years.

Common Problems This Part Can Address

• Inoperative or intermittent high beam switching
• Turn signal control failure at the steering column switch
• Windshield wiper delay or speed control loss
• Washer spray switch malfunction
• Worn or damaged switch contacts causing inconsistent lighting operation

Installation Notes and Tips

Verify connector style, terminal count, and vehicle build date before installation. This switch uses a bolt-on attachment method, a rectangular female connector, and blade terminals, so matching the original electrical interface is important for proper operation. Confirm all lighting, turn signal, washer, and wiper functions after installation on the Ford F-150.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for mechanical and electrical performance before release. CBS-1251 is a new replacement part intended to meet the demands of professional service work.