Manufacturer Part Number : 12586684 25380534 12589465 25358575 253445324 5313185. 05-07 GMC Envoy Envoy XL Envoy XUV 4.2L. 2005 GMC Envoy XUV 4.2L. OEM Delphi Fuel Injectors For. These injectors have been fully tested to ensure a better optimization of fuel for better gas mileage and throttle response compared to worn injectors.
