Standard Ignition DS-338 Headlight Dimmer Switch

Reliable Headlight Dimmer Switch for Select GM Vehicles

The Standard Ignition DS-338 headlight dimmer switch is designed for precise control of your vehicle's headlight functions. Engineered to fit specific Buick, Chevrolet, Oldsmobile, and Pontiac models, this switch ensures consistent performance and durability.

• Bolt-on attachment method for secure installation
• Column mounting location for direct compatibility
• Four male terminals with wire lead and pin type connectors
• Operates on standard 12-volt electrical systems
• Compatible with Buick, Chevrolet, Oldsmobile, and Pontiac models including Cutlass Supreme, Grand Prix, Lumina, Regal, and Tempest

Product Details and Specifications

The DS-338 headlight dimmer switch from Standard Ignition is designed to replace factory switches in select GM vehicles. Its bolt-on attachment method allows for straightforward installation on the steering column, maintaining original equipment fit and function. The switch features four male terminals with wire lead and pin connectors, ensuring reliable electrical connections within the vehicle's lighting system. Operating at 12 volts, it integrates seamlessly with the vehicle's electrical architecture.

Compatible Vehicles and Applications

This headlight dimmer switch is compatible with a range of General Motors vehicles, including Buick, Chevrolet, Oldsmobile, and Pontiac. Specific models supported include the Buick Regal and Century, Chevrolet Lumina, Oldsmobile Cutlass Supreme, Pontiac Grand Prix, and Tempest. The DS-338 part number corresponds directly to these applications, providing a precise replacement option for maintaining proper headlight dimming functionality.

Common Issues Addressed by the DS-338 Switch

• Intermittent or non-functioning headlight dimming
• Failure to switch between high and low beam headlights
• Loose or faulty electrical connections causing lighting issues
• Wear and tear from extended use leading to switch malfunction
• Replacement of damaged or corroded original dimmer switch

Installation Notes and Tips

• Ensure vehicle battery is disconnected before installation to prevent electrical shorts
• Locate the switch on the steering column for direct replacement
• Use appropriate tools to remove mounting bolts and disconnect terminals carefully
• Verify terminal connections match the original wiring harness for proper function
• Test headlight dimmer operation before reassembling steering column covers

Quality Assurance and Warranty Information

Standard Ignition manufactures the DS-338 headlight dimmer switch to meet or exceed OEM specifications. Each unit undergoes rigorous quality control to ensure durability and reliable performance. While specific warranty terms may vary, Standard Ignition typically offers coverage against defects in materials and workmanship, providing confidence in the product's longevity and function.