Keep the key turning and every start-and-run circuit switching cleanly with the Standard Ignition Ignition Switch US-432 (also written US432), an ignition starter switch that drops in as a direct-fit replacement for the listed applications: the 1996-1999 Chevrolet P30, 1990-1991 GMC C5000 TopKick, 1990-1996 GMC C6000 TopKick, 1997-2002 GMC C6500 TopKick, 1991-1996 GMC C7000 TopKick, 1997-2002 GMC C7500 TopKick, and 1996-1999 GMC P3500 — see the "Vehicles it fits" section for engine-level fitment.
The ignition switch directs battery power to the starter, ignition, and accessory circuits as the key is rotated. Signs it may need replacing include intermittent no-start, stalling, or accessories that cut out as you turn the key.
Interchange: CS805 · LS708 · KS6805 · 26009706
This part cross-references / interchanges with the following part numbers:
What does this ignition switch do?
It routes battery power to the starter, ignition, and accessory circuits as the key is turned, controlling the electrical switching that starts and runs the vehicle.
Which vehicles does the US-432 fit?
It's a direct-fit replacement for applications including the 1996-1999 Chevrolet P30, several 1990-2002 GMC TopKick models, and the 1996-1999 GMC P3500. See the "Vehicles it fits" section for the full list.
What are signs my ignition switch may need replacing?
Common signs include intermittent no-start, stalling, or accessories cutting out as you turn the key. Diagnose the cause first, since these symptoms can have other sources.
What numbers does this part interchange with?
It cross-references CS805, LS708, KS6805, and 26009706.
Is this switch tested before it ships?
Yes. Standard Ignition states each switch is 100% tested to verify both mechanical and electrical switching performance.
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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.
