Ignition Switch Front Door Lock Cylinders for Chevy Silverado GMC Sierra 03 07

Product Overview

This Ignition Switch & Front Door Lock Cylinder kit replaces the worn ignition cylinder and front door lock cylinders on 2003-2007 Chevy Silverado and GMC Sierra trucks. The set restores key-operated security and smooth starting when original components fail. The Ignition Switch & Front Door Lock Cylinders are keyed alike, providing convenient single-key operation for the ignition and both front doors.

Key Features & Performance

• Complete set includes ignition lock cylinder and two front door lock cylinders
• Keyed alike with two matching keys for one-key ignition and door access
• Original-style keyway and wafer tumblers provide reliable, long-lasting operation
• Ignition switch incorporates electrical contacts for start, run, and accessory positions
• Directly replaces factory lock cylinders without modification to the steering column or door handles
• Helps resolve common issues like key sticking, no-crank conditions, and door lock binding

Fitment & Compatibility

• 2003-2007 Chevrolet Silverado 1500
• 2003-2007 Chevrolet Silverado 2500HD / 3500HD
• 2003-2007 GMC Sierra 1500
• 2003-2007 GMC Sierra 2500HD / 3500HD

Common Uses

• Replacing a worn ignition cylinder that causes key sticking or intermittent no-start
• Fixing door locks that fail to turn or no longer accept the original key
• Restoring a single-key system after key loss or lock damage
• Rebuilding lock systems on theft-recovery or high-mileage vehicles
• Preventative replacement during steering column or door handle repairs

Technical Specifications

• Kit Includes: 1 Ignition Lock Cylinder, 2 Door Lock Cylinders, 2 Keys
• Compatible Models: Chevrolet Silverado (2003-2007) / GMC Sierra (2003-2007)
• Lock Type: Wafer tumbler lock cylinders

Frequently Asked Questions

Q: Will this ignition switch work if my truck has a Passlock anti-theft system? A: The lock cylinder can be installed, but the Passlock sensor may require a relearn procedure. Check your vehicle's security system requirements before installation.

Q: Do these lock cylinders come keyed alike? A: Yes, all cylinders are keyed alike and include two identical keys so a single key operates the ignition and both front doors.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.