The Toyota AZ engine family is a straight-4 piston engine series. The AZ series uses an aluminium engine block with cast iron cylinder liners and aluminium DOHC cylinder head. The engine series features many advanced technologies including slant-squish combustion chambers, offset cylinder and crank centers, and the VVT-i continuously variable intake valve timing. Key vehicles that used the 2AZ engine
Toyota Camry: 2002–2011
Toyota RAV4: 2001–2008
Toyota Highlander: 2001–2007
Scion tC: 2005–2010
Toyota Solara: 2004–2008
Toyota Matrix: 2009–2011
Toyota Corolla XRS: 2009–2012
Scion xB: 2008–2012
Lexus ES240: Select markets