The ZR engine gasoline-engine-family, introduced in 2007 by Toyota Motor Corporation, uses a DOHC 16-valve cylinder head with a 4-cylinder die-cast block. Engines displace either 1.6-liters, 1.8-liters or 2.0-liters. Most engines in this family are equipped with Toyota's dual VVT-i technology that optimizes both intake and exhaust valve timing. This engine family is also the first to use Toyota's Valvematic system, first appearing on the Noah and Voxy in 2007 and then the European Avensis in 2009.
The Toyota 1ZR-FE is a DOHC, 16-valve, engine equipped with dual VVT-i. This engine is available with either manual gearbox or a "multi-mode" manual transmission. This new engine is now replacing the 3ZZ-FE engine in most applications. Output for this engine is rated at at 6400 rpm and of torque at 5200 rpm net. ;Specifications:
The Toyota 1ZR-FAE is a DOHC, 16-valve, engine also equipped with Dual VVT-i and Valvematic. Output for this engine is rated at at 6400 rpm and of torque at 4400 rpm for the Avensis. Compression ratio has been increased to 10.7:1, red line is at 6600 rpm. Valvematic varies the intake valve lift between according to load and RPM. ;Applications:
The Toyota 1ZR-FBE is a flex fuel version of the 1ZR-FE the DOHC, 16-valve, engine also equipped with Dual VVT-i and Valvematic. Output for this engine is rated at at 6000 rpm and of torque at 5200 rpm. ;Applications:
The Toyota 2ZR-FE is a DOHC, 16-valve, engine also equipped with Dual VVT-i. This new engine is now replacing the 1ZZ-FE engine in most applications. Output for this engine is rated at at 6000 rpm and of torque at 4400 rpm for the Corolla, Matrix, and Vibe and and of torque in the Scion xD. ;Specifications:
The Toyota 2ZR-FAE is a DOHC, 16-valve, this engine adopts the Valvematic system. This all-new engine is progressively replacing the 1ZZ-FED and 2ZR-FE engine in most applications. Variants of this engine produce and of torque. Compression ratio is 10.5:1 and redline is at 6600 rpm. The engine consumes 5–10% less fuel than the 2ZR-FE depending on the application. A special version of the 2ZR-FAE was introduced by Toyota in 2016 for the Taiwanese version of the Toyota Sienta. Unlike the original 2ZR-FAE, this version was created by simply adding the Valvematic system to the standard 2ZR-FE engine used in the Toyota Corolla Altis sold there, resulting in total power of at 6200 rpm and a peak torque of at 4000 rpm. ;Applications:
The Toyota 2ZR-FBE is A flex fuel version of the 2ZR-FE the DOHC, 16-valve, engine also equipped with Dual VVT-i and Valvematic. Output for this engine is rated at at 6000 rpm and of torque at 4000 rpm. ;Applications:
The Toyota 2ZR-FXE is a Atkinson cycle variant of the 2ZR-FE. It has the same bore and stroke, but the compression ratio is increased to 13.0:1, and the inlet valve closing is retarded. The net result is that the engine has a greater effective expansion than compression. Output is and of torque, paired with electric motor/generators in the hybrid drive system; together the engine and electric motors produce up to and. Maximum thermal efficiency is about 38.5%. For the 2016 Toyota Prius, output is at 5200 rpm and of torque at 3600 rpm, or when paired with electric motor/generators and of torque in the hybrid drive system; together the engine and electric motors produce up to. Maximum thermal efficiency is about 40%. ;Applications:
The 3ZR-FAE is a DOHC, 16-valve engine that was first used in 2007. It is Toyota's first engine with the Valvematic variable lift intake system. ;Specifications:
A flex fuel version of the 3ZR-FE was released in March 2010 in Brazil with when running on petrol, and on ethanol. ;Applications:
Toyota Corolla
4ZR-FE
The Toyota 4ZR-FE is a DOHC, 16-valve engine with Dual VVT-i. Output for this engine is rated at at 6000 rpm and of torque at 4400 rpm. It is very similar to 1ZR-FE. ;Applications:
