Standard Ignition EFL-67 Turn Signal Flasher

Reliable Turn Signal Flasher for Chevrolet and GMC Trucks

The Standard Ignition EFL-67 turn signal flasher is designed to provide consistent and dependable flashing performance for select Chevrolet and GMC trucks. Engineered to meet OEM specifications, this 12-volt relay ensures your vehicle's turn signals operate smoothly and safely.

• Compatible with Chevrolet Silverado and GMC Sierra 1500, 2500, and 3500 series trucks
• 12-volt electrical system support for standard truck applications
• Male rectangular connector with 10 blade terminals for secure connections
• Includes a relay designed specifically for turn signal flashing functions
• No mounting brackets included, allowing flexible installation options

Technical Details and Specifications

The EFL-67 turn signal flasher from Standard Ignition features a male connector with a rectangular shape, designed to fit directly into the vehicle’s existing wiring harness. It contains a relay that controls the flashing function of the turn signals, operating at 12 volts to match the electrical system of Chevrolet Silverado and GMC Sierra trucks. The unit has 10 male blade terminals, providing a reliable and stable connection to the vehicle’s electrical system. This flasher unit does not include mounting brackets, which allows for versatile placement depending on the vehicle’s setup.

Compatible Vehicles and Applications

This turn signal flasher is compatible with a range of Chevrolet and GMC trucks, including:

• Chevrolet Silverado 1500, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 3500, and 3500 Classic
• GMC Sierra 1500, 1500 HD, 1500 HD Classic, 2500, 2500 HD, 3500, and 3500 Classic

Use the Standard Ignition EFL-67 to replace faulty or worn turn signal flashers in these models to restore proper signaling function.

Common Issues Addressed by This Turn Signal Flasher

• Irregular or non-functioning turn signal flashes
• Turn signals that stay on continuously without flashing
• Rapid or slow blinking of turn signals indicating flasher failure
• Electrical relay failure causing intermittent turn signal operation
• Replacement for OEM flasher units in Chevrolet Silverado and GMC Sierra trucks

Installation Notes and Tips

• Ensure the vehicle’s ignition is off before installation to prevent electrical shorts
• Verify connector orientation matches the male rectangular connector on the EFL-67
• Check the 10 blade terminals for secure and corrosion-free connections
• Mounting brackets are not included; secure the flasher unit in a dry, accessible location
• Consult the vehicle’s service manual for specific wiring diagrams and installation procedures

Quality Assurance and Warranty Information

Standard Ignition manufactures the EFL-67 turn signal flasher to meet or exceed OEM standards for electrical components. This part undergoes rigorous testing to ensure reliable performance in Chevrolet Silverado and GMC Sierra trucks. Warranty coverage details should be confirmed at the time of purchase, as they may vary by distributor or retailer.