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The power steering pump part number for a 2019 Chevy Tahoe may vary depending on the engine size and other specifications. It is recommended to consult the vehicle's owner manual or contact a Chevy dealership or auto parts store for the correct part number.
I apologize for the confusion. The power steering pump part number for a 2019 Chevy Tahoe with a V8 engine and 4x4 drivetrain is AC Delco 20954812. However, it is always recommended to double-check with a Chevy dealership or auto parts store to ensure the correct part number for your specific vehicle.