[1] Toyota Motor Manufacturing (UK) in Deeside produces SZ engines for the Yaris.

[3][4] The 2SZ-FE and 3SZ-FE variations are also manufactured by PT Astra Daihatsu Motor's Karawang Engine Plant in Indonesia.

It features VVT-i, off-set type crankshaft which reduces friction losses and narrow-angle valves.

Engine weight of 68 kg (150 lb); was achieved by using cast-iron cylinder block produced by cold-box method.

Daihatsu's internal code for this engine is labeled as K3-DE/VE and the turbocharged version as K3-VET.