Standard Ignition US-494L Ignition Lock Cylinder

Ignition Lock Cylinder for GM Applications

Standard Ignition US-494L is an ignition lock cylinder built for direct replacement in column-mounted applications. It is engineered with solid brass tumblers, chrome-plated brass keys, and a die-cast zinc lock core design to support precise key operation and consistent fit.

Compatible With 2000-2005 Pontiac Bonneville and 2001-2003 Oldsmobile Aurora, this ignition lock cylinder is an OE-style service part for restoring key-to-lock function when the original cylinder wears out or fails.

Key Features

• Column-mounted ignition lock cylinder
• Un-coded design for service replacement
• Solid brass tumblers for precise internal operation
• Die-cast zinc lock core construction
• Chrome-plated brass keys are part of the original design specification, while keys are not included with this part
• Instructions included for installation reference
• Standard Ignition US-494L for direct-fit service applications

Detailed Description

Standard Ignition US-494L is designed to match the original ignition lock layout for accurate installation in the steering column. It is intended for vehicles where the ignition lock cylinder has become worn, sticky, or no longer turns reliably. The internal construction uses brass and zinc components selected for stable operation and repeatable key engagement. This part cross-references 4H1102 and 53-2009 for the same application.

Fits 2000-2005 Pontiac Bonneville, N/A. Fits 2001-2003 Oldsmobile Aurora, N/A. Standard Ignition US-494L is a practical replacement choice when servicing these GM vehicles and restoring normal ignition lock function.

Common Problems This Part Can Solve

• Key will not turn smoothly in the ignition
• Ignition cylinder feels worn or loose in the column
• Original lock core no longer matches the vehicle key pattern
• Intermittent starting caused by a failing lock cylinder
• Need for a direct replacement ignition lock cylinder on Pontiac Bonneville or Oldsmobile Aurora models

Installation Notes and Tips

This ignition lock cylinder mounts in the steering column. Instructions are included to support the replacement process. Verify vehicle year and model before installation, and confirm the existing lock cylinder style matches the application. Because this part is un-coded, key coding or rekeying procedures may be required during service depending on the vehicle setup.

Quality Assurance

Standard Ignition designs its ignition lock components around technician needs and OE-style service requirements. The US-494L uses solid brass tumblers and a zinc lock core construction to support dependable operation in daily use.