Model Compatibility: Fits Tahoe models requiring engine cylinder deactivation solenoid part numbers 12571609, 12580901, or 917-162. Part Number Match: Direct replacement for AP02 Engine Cylinder Deactivation Solenoid with identical form, fit, and function as specified in the title. Functional Purpose: Restores cylinder deactivation system when installed in compatible Tahoe applications. Application Scope: Designed for use with the engine cylinder deactivation system in vehicles matching the listed part numbers. Installation Requirement: Mounts and connects using the same hardware and wiring configuration as the AP02 solenoid unit., Manufacturer: TRdkTDaen