Standard Ignition DS-774 Headlight Dimmer Switch - Front or Rear

Headlight Dimmer Switch for GM Minivans

Standard Ignition DS-774 is a new combination switch built for vehicles that need dependable lighting, wiper, washer, turn signal, and cruise control functions in one assembly. It uses copper alloy conductors for strong electrical transfer and is 100% tested for mechanical and electrical switching performance.

Fits 1997-2004 Oldsmobile Silhouette, 1997-2005 Pontiac Montana, 1997-1999 Pontiac Grand Prix, and 1997-1998 Pontiac Trans Sport in the listed configurations. This DS-774 headlight dimmer switch is a direct service part for drivers replacing a worn or intermittent switch on Pontiac Montana and Oldsmobile Silhouette applications.

Key Features

• Bolt-on attachment with a rectangular 3-terminal connector
• Male connector with 3 cavities and 27 blade terminals
• Combination switch functions for lighting, turn signal, wiper, washer, and cruise control inputs
• Includes cruise control cancel, on/off, resume, set, and speed adjustment functions
• Includes latching high beam, momentary high beam flasher, turn signal control, windshield washer spray, windshield wiper delay, and windshield wiper speed settings
• New part built with copper alloy conductors for low resistive loss
• 12-volt electrical design

Detailed Description

Standard Ignition DS-774 is a headlight dimmer switch and combination switch assembly for select Pontiac and Oldsmobile vehicles. It is engineered for service work where the original switch has become unreliable, with tested switching action and materials chosen for stable electrical contact. The DS-774 part number is commonly searched for Pontiac Montana, Oldsmobile Silhouette, Pontiac Grand Prix, and Pontiac Trans Sport replacement needs.

This part cross-references Standard Motor Products DS-774 and ACDelco 26039594 for the same application.

What This Switch Helps Address

• Intermittent or inoperative high beam and dimmer control
• Turn signal or directional indicator switching issues
• Wiper delay or washer spray control faults
• Cruise control switch input problems on equipped vehicles
• Combination switch wear that affects multiple driver controls at once

Installation Notes and Tips

Verify connector style, terminal count, and vehicle equipment before installation. This DS-774 uses a bolt-on mounting method and a female blade terminal layout, so the replacement should match the original electrical and mechanical interface. Confirm the exact year, model, and configuration for Pontiac Montana, Oldsmobile Silhouette, Pontiac Grand Prix, or Pontiac Trans Sport before ordering.

For best results, compare the original switch functions to the replacement unit before final assembly. Make sure the vehicle’s cruise control and wiper options match the listed fitment notes, especially on applications marked with brake light switch or combo switch assembly requirements.

Quality Assurance

Standard Ignition builds this switch with robust materials and copper alloy conductors, then tests each unit for mechanical and electrical performance. That process supports consistent operation in daily service use and helps ensure the DS-774 meets the demands of professional repair work.