Ignition Assembly Lock Cylinder Switch & Housing Replacement - Direct

Our review of this ignition assembly finds it best suited for owners of early 2000s Chevy, GMC, Cadillac and Hummer H2 trucks and SUVs who need a direct, OEM-style replacement for a worn or sticking ignition. The single biggest reason to buy is the set replaces the key cylinder, housing and starter switch together in one package, restoring ignition function without sourcing multiple parts. It is a practical repair option when the original lock shows wear or fails to operate reliably.

Key Features

• Complete replacement: Includes ignition lock cylinder, cylinder housing and starter switch so users can address wear across the whole ignition assembly in one service.
• OEM design match: Built to mirror original equipment dimensions so it fits the intended 2003-2007 Chevy, GMC, Cadillac and H2 models without major modification.
• Multiple OE cross numbers: Supplied with common replacement numbers such as US-312L, 924-713 and 924-715 for easier compatibility checks with existing vehicle parts.
• Quality control: The assembly is tested to ensure durability so keys and tumblers work smoothly after installation.
• Warranty support: Backed by a 12-month warranty offering replacement or refund for common early failures.

Who It's For

This ignition assembly is for owners of 2003-2007 models who want a like-for-like fix: specifically Cadillac Escalade, Chevy Avalanche, Silverado, Suburban, Tahoe, GMC Yukon and Sierra, and Hummer H2 vehicles listed by year in the product notes. It is a good option for DIY mechanics and independent shops that prefer replacing the cylinder, housing and starter switch together to avoid repeat labor.

Those who should look elsewhere include owners of vehicles outside the listed years or models, and buyers who require dealer-only VIN-specific parts programming or factory key cutting services not handled by a universal replacement unit.

Pros & Cons

Pros

• Direct replacement set reduces the need to source three separate components and simplifies repair.
• Good value for money compared with buying OEM pieces individually.
• Many customers report the unit is easy to install and restores key action when matched to the correct year/model.

Cons

• Some reports note mixed functionality or fit issues on certain vehicles, so confirming fit with the listed OE numbers before purchase is prudent.

Specifications

Our Verdict

For owners of the listed Chevy, GMC, Cadillac and Hummer H2 models, this ignition assembly is a cost-effective, practical repair that restores worn key cylinders and reduces the risk of repeat labor by replacing the switch, cylinder and housing together. It is good value when compatibility is confirmed using the OE numbers and when dealer programming is not required.

Frequently Asked Questions

Will this fit my vehicle?
Check the listed years and the OE replacement numbers (for example US-312L, 924-713, 924-715) against your vehicle to confirm compatibility.

Is programming or key cutting required?
Basic mechanical fit and function do not require programming, but some vehicles may need dealer or locksmith services for transponder key programming depending on the original key system.

What if a part fails after purchase?
The product includes a 12-month warranty; contact the seller for replacement or refund if you experience a covered failure.