The 3S-GTE is an in-line 4-cylinder 1,998 cc (2.0 L; 121.9 cu in) engine from Toyota, based on the 3S-GE with the addition of under piston oil squirters and a reduced compression ratio to accommodate the addition of a turbocharger.
There are four generations of this engine, which started manufacture in 1986 and was built until 2007. The turbochargers used in the 3S-GTE engines are Toyota designs and use an internal wastegate design. Depending on where the engine was intended to be sold the exhaust turbine is either ceramic (Japan) or steel (US and Australia). It was fitted to the MR2(North America and Japan only. There is no official MR2 for the European market with this engine.), Toyota Celica GT-Four, and the Caldina GT-T and GT-Four.