Standard Ignition Ignition Switch P/N:US-278
Send power where the key directs it with the Standard Ignition switch US-246, an ignition starter switch that routes current to the vehicle's ignition and starter circuits as the key is turned through its positions. It is a direct-fit replacement for many vehicles, among them the 1990-1993 Chevrolet Lumina, 1988-1993 Buick Regal and 1988-1993 Oldsmobile Cutlass Supreme. See the Buyer's Guide tab for the full list and engine details.
Signs an ignition switch may need replacing include an engine that does not crank when the key is turned, stalling or loss of power while driving, and accessories or dash lights that cut in and out. These symptoms can have other causes, so diagnose the ignition circuit first. If a failed switch is the cause, the US-246 replaces it.
Interchange: CS585 · 3431725 · LS648 · KS6193 · 26002562
This part cross-references / interchanges with the following part numbers:
What vehicles does the Standard Ignition US-246 fit?
It fits many vehicles, among them the 1990-1993 Chevrolet Lumina, 1988-1993 Buick Regal and 1988-1993 Oldsmobile Cutlass Supreme. See the Buyer's Guide tab for the full list and engine details.
Is this the right Regal switch for a 1988-1993 Buick Regal?
Yes. The US-246 is listed for the 1988-1993 Buick Regal; see the Buyer's Guide tab for engine details.
What are signs an ignition switch may need replacing?
Common signs include no crank when the key is turned, stalling or power loss while driving, and accessories cutting in and out. These can have other causes, so diagnose the circuit before replacing.
Is the US-246 tested?
Standard Ignition states that its parts are 100% tested to verify both mechanical and electrical switching performance.
Which part numbers does the US-246 cross-reference?
It cross-references CS585, 3431725, LS648, KS6193 and 26002562.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.