Standard Ignition US-422 Ignition Switch

Ignition Switch for Column-Mount Applications

The Standard Ignition US-422 ignition switch is built for service replacement on select GM minivan and passenger car applications. It uses copper alloy conductors for strong electrical transfer and is 100% tested for mechanical and electrical switching performance.

Compatible With 1997-2005 Buick Century, Regal, 1997-2004 Pontiac Montana, Grand Prix, Trans Sport, and 1997-2004 Oldsmobile Silhouette applications, this column-mounted switch is a direct-fit service part for vehicles with the listed configurations.

Key Features

• Column-mounted ignition switch with bolt-on attachment
• Black plastic finish with rectangular male connector
• 12 female blade terminals for the specified electrical interface
• Copper alloy conductors for low-resistance electrical flow
• Individually tested for switching performance before release
• Standard Ignition US-422 replacement for select Buick, Pontiac, and Oldsmobile models

Detailed Description

The Standard Ignition US-422 is an ignition switch designed around the demands of column-mounted steering column systems. Its robust construction and material selection support consistent key-to-electrical switching action, while the copper alloy conductor design helps maintain conductivity across the circuit. This part number is used in applications such as the Buick Century, Buick Regal, Pontiac Montana, Pontiac Grand Prix, Pontiac Trans Sport, and Oldsmobile Silhouette, making US-422 a relevant replacement when diagnosing ignition switch wear or intermittent starting concerns.

This part cross-references Standard Ignition US-422 with common service numbers such as 1S6484 and KS6165 for the same application.

Common Problems This Part Can Address

• Intermittent no-start condition caused by worn internal switch contacts
• Accessory or ignition circuit loss when turning the key
• Electrical switching faults in the steering column ignition circuit
• Key position inconsistency during start, run, or accessory operation
• Replacement need after switch wear in high-mileage GM column-shift vehicles

Installation Notes and Tips

• Verify the vehicle uses a column-mounted ignition switch with the listed connector and terminal layout.
• Match the application carefully for Buick Century, Buick Regal, Pontiac Montana, Pontiac Grand Prix, Pontiac Trans Sport, and Oldsmobile Silhouette fitment.
• Confirm column shift configuration where noted, including Buick Century w/ Column Shift and Pontiac Grand Prix w/ Column Shift applications.
• Inspect the connector, terminals, and surrounding column wiring before installation.
• Follow the vehicle service procedure for ignition switch alignment and electrical verification after installation.

Quality Assurance

Standard Ignition builds this switch with service-grade materials and tests each unit for mechanical and electrical function to help ensure proper fit and operation in the specified applications.