2008 Buick Allure Engine: 5.3L V8; Retainer clip only;. 2009 Buick Allure Engine: 5.3L V8; Retainer clip only;. Part Type: Fuel Injector Seal Kit. Fuel Injector Retaining Bracket. Injector Bracket. Ensure that this part fits your vehicle by entering your vehicle's Year, Make, Model, Trim, and Engine in the Compatibility Table.