Standard Ignition US-242 Ignition Switch

Ignition Switch for Select GM Vehicles

Standard Ignition US-242 is an ignition switch built for select Pontiac, Oldsmobile, and Buick applications from the late 1980s through the mid-1990s. It uses a bolt-on mounting style, a rectangular male connector, and a 12-blade female terminal layout for a direct replacement on column-mounted systems.

Built with copper alloy conductors and tested for mechanical and electrical switching performance, this ignition switch is made to restore reliable key-to-start operation in compatible vehicles such as the Pontiac Bonneville and Oldsmobile 88.

Key Features

• Standard Ignition US-242 ignition switch for column-mounted applications
• Bolt-on attachment method for secure installation
• Rectangular 1-connector design with male connector gender
• 12 female blade terminals for the specified electrical interface
• Black, silver, and white housing with aluminum and plastic finish
• Copper alloy conductors for strong electrical conductivity and low resistive loss
• 100% tested for mechanical and electrical switching performance

Detailed Description

The US-242 ignition switch is engineered for service replacement where dependable switching action and proper electrical contact are required. Standard Ignition builds this switch with robust materials to support consistent fit and function in column-mounted ignition systems. It is a direct-fit option for vehicles including 1991-1995 Pontiac Bonneville, 1992-1994 Oldsmobile 88, 1992-1993 Buick LeSabre, and other listed GM applications. If you are replacing a worn ignition switch on a Pontiac Bonneville, Oldsmobile 98, or Buick LeSabre, US-242 provides the correct connector and terminal configuration for the specified vehicles.

This part cross-references CS119 and KS6208 for the same application.

Common Problems It Can Help Solve

• Intermittent no-start or crank-no-start conditions caused by worn switch contacts
• Key position issues such as accessory, run, or start circuit failure
• Electrical switching problems from heat- or age-related internal wear
• Loose or unreliable column ignition operation in compatible GM vehicles
• Restoration of proper ignition signal delivery to vehicle circuits

Installation Notes and Tips

Verify the vehicle’s column configuration, connector style, and terminal count before installation. This ignition switch mounts on the steering column and uses a bolt-on attachment method, so alignment with the existing actuator and lock cylinder linkage is important. Confirm the application notes for your vehicle, including console shift, headlight dimmer, locking steering column, or tilt steering wheel requirements where listed.

Compatible with select 1988-1995 Pontiac, Oldsmobile, and Buick models, including Pontiac Bonneville, Oldsmobile 88, Oldsmobile 98, Oldsmobile Delta 88, Oldsmobile Custom Cruiser, Oldsmobile Cutlass Ciera, Pontiac 6000, and Buick LeSabre as specified in the fitment data.

Quality Assurance

Standard Ignition states that its ignition switches are built from high-grade materials and 100% tested to verify both mechanical and electrical switching performance. The US-242 is designed to meet the demands of professional service replacement and to deliver proper fit and function in the listed applications.