The K16R-U11 is an original equipment manufacturer (OEM) part for Toyota petrol engines, including the 1NZFE, 1ZZFE, 2NZFE, 3RZFE, 3ZZFE, and 4A-FE engines.
Toyota Corolla various models
Toyota Echo (1.3L and 1.5L engines)
Toyota Avensis (1.6L and 1.8L engines)
Toyota Celica (1.8L GT models)
Toyota RAV4 (1.8L models)
Toyota Prius (early models with petrol engines)
Toyota Land Cruiser Prado (2.7L