Standard Ignition US-270 Ignition Switch

Ignition Switch for Select GM Applications

Standard Ignition US-270 is a column-mounted ignition switch built with a bolt-on attachment method and a rectangular male connector. It is engineered for direct replacement service on select Oldsmobile and Pontiac vehicles, including 1995-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1996-1999 Pontiac Bonneville, 1997-1998 Oldsmobile Regency, and 1995-1996 Oldsmobile 98.

For drivers and technicians searching for an ignition switch for Oldsmobile 88, Pontiac Bonneville ignition switch replacement, or a Standard Ignition US-270 cross-reference, this part is built to restore reliable key-to-electrical switching performance.

Key Features

• Column-mounted ignition switch for select GM vehicles
• Bolt-on attachment method for secure installation
• Rectangular 1-way male connector with 15 female blade terminals
• Constructed with aluminum and plastic materials
• Copper alloy conductors for strong electrical conductivity and reduced resistive loss
• 100% tested for mechanical and electrical switching performance

Detailed Description

Standard Ignition US-270 is designed for service professionals who need a dependable ignition switch replacement with proper fit and function. The switch uses copper alloy conductors to support consistent electrical transfer, while the robust housing and connector design help meet the demands of daily vehicle operation. This part cross-references Standard Motor Products (e.g., CS115, CS628) for the same application.

Compatible With 1995-1999 Oldsmobile 88, 1996-1999 Oldsmobile LSS, 1996-1999 Pontiac Bonneville, 1997-1998 Oldsmobile Regency, and 1995-1996 Oldsmobile 98, this ignition switch is a practical replacement when the original switch no longer turns, sends intermittent signals, or fails to maintain proper accessory, start, or run positions. Standard Ignition US-270 is also a useful search term for buyers comparing ignition switch part numbers across GM column-mounted applications.

Common Problems It Can Help Solve

• Intermittent no-start condition caused by worn ignition switch contacts
• Accessory, run, or start circuit failure
• Key position inconsistency or electrical switching issues
• Loss of continuity in the column-mounted ignition circuit
• Replacement need after switch wear in high-use vehicles

Installation Notes and Tips

Verify the vehicle uses a column-mounted ignition switch and compare the connector shape, terminal count, and attachment style before installation. Confirm fitment by year, make, and model, especially on Oldsmobile 88 and Pontiac Bonneville applications with console-related exclusions noted in the catalog data. Standard Ignition US-270 should be matched to the original switch configuration to ensure proper electrical operation.

Quality Assurance

Standard Ignition states that its ignition switches are built from high-grade materials and tested for both mechanical and electrical performance. The US-270 is manufactured to support proper fit and dependable switching action in service replacement applications.