Turn the key and route power to every ignition circuit with the Standard Ignition Ignition Switch / Ignition Starter Switch (US-344). It installs as a direct-fit replacement for a range of 2000–2002 GM full-size trucks and SUVs, including the 2000-2002 Chevrolet Silverado 1500 and 2500, Suburban 1500 and 2500, Tahoe and Sonora, the 2000-2002 GMC Sierra 1500 and 2500 and Yukon, the 2001 Chevrolet C1500, the 2001-2002 Chevrolet Silverado 1500 HD, 2500 HD and 3500, GMC Sierra 1500 HD, 2500 HD and 3500 and Yukon XL 1500 and 2500, plus the 2002 Chevrolet Avalanche 1500 and 2500 and 2002 GMC C3500HD (all engines). See the "Vehicles it fits" section for the full application list.
Mechanically, the switch directs battery power to the accessory, run, and start circuits as the lock cylinder is turned. Signs it may need replacing include intermittent power to the dash or accessories, or the engine failing to crank; if a failed ignition switch is the cause, this replaces it. This part is listed under both the Ignition Switch and Ignition Starter Switch names. Sold individually; the listed applications use one per vehicle. Country of origin: Taiwan. Manufacturer part number US-344 (also US344).
This part cross-references / interchanges with the following part numbers:
What is this part?
It's the Standard Ignition Ignition Switch / Ignition Starter Switch (US-344), a column-mounted switch that routes battery power to the accessory, run, and start circuits as the key is turned.
Which vehicles does it fit?
It's a direct-fit replacement for many 2000–2002 Chevrolet and GMC full-size trucks and SUVs (Silverado, Sierra, Tahoe, Yukon, Suburban and more, all engines). See the "Vehicles it fits" section for the full list.
How do I know my ignition switch is failing?
Signs may include intermittent power to the dash or accessories, or the engine not cranking. Diagnose the cause first; if the ignition switch is at fault, this part replaces it.
What connectors and terminals does it have?
It uses a rectangular housing with five male connectors and 28 female blade terminals, and attaches via a snap-fit mount at the steering column.
How many are needed and where is it made?
The listed applications use one per vehicle, and it's sold individually. Country of origin: Taiwan.
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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.
