Toyota SZ engine

The Toyota SZ engine family is a series of straight-4 piston engines with a forward-facing exhaust. Toyota Motor Manufacturing (UK) in Deeside produces SZ engines for the Yaris. All three types of the SZ engine are built in Tianjin FAW Toyota Engine Co., Ltd. (TFTE) Plant No. 1 in Xiqing District, Tianjin, China. The 2SZ-FE and 3SZ-FE variations are also manufactured by PT Astra Daihatsu Motor's Karawang Engine Plant in Indonesia.

1SZ-FE

The 1SZ-FE was jointly developed by Toyota and Daihatsu. It has 4 cylinders It is 1.0 L (997 cc). 4 valve per cylinder. Bore and stroke is 69 mm × 66.7 mm (2.72 in × 2.63 in), with a compression ratio of 10.0:1. Output is 51.5 kW (69.1 hp; 70.0 PS) at 6000 rpm with 95 N⋅m (70 lbf⋅ft) of torque at 4000 rpm. 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.

Applications:

Toyota Yaris/Echo/Vitz

2SZ-FE

The 2SZ-FE is 1.3 L (1,298 cc). Bore and stroke is 72 mm × 79.7 mm (2.83 in × 3.14 in), with a compression ratio of 11.0:1. Output is 64 kW (86 hp; 87 PS) at 6000 rpm with 122 N⋅m (90 lbf⋅ft) of torque at 4200 rpm. Daihatsu's internal code for this engine is labeled as K3-DE/VE and the turbocharged version as K3-VET. The engine features VVT-i (except for K3-DE model). In China, this engine is usually known as the 4A13.

Applications:

Transversal:
- Toyota Yaris/Toyota Vitz (XP10/XP90)
- Toyota Belta
- Daihatsu Materia
- Daihatsu YRV (as K3-VE)
- Daihatsu YRV Turbo (as K3-VET)
- Toyota Ractis (XP100)
- Daihatsu Sirion (M100/M300) (as K3-VE)
- Perodua Myvi (M300/M600) (as K3-VE)
- Daihatsu Copen (export model for 2006-2011, as K3-VE)
Longitudinal:
- Daihatsu Gran Max (as K3-DE)
- Toyota Avanza/Daihatsu Xenia (as K3-VE)
- Daihatsu Terios (first generation, 2000-2004) (as K3-VE)

3SZ-VE

The 3SZ-VE is 1.5 L (1,495 cc), introduced in October 2005. First installed in 2005 on the second generation Daihatsu Terios. Bore and stroke is 72 mm × 91.8 mm (2.83 in × 3.61 in), with a compression ratio of 10.0:1 and redline of 6500 rpm. Output is 80 kW (107 hp; 109 PS) at 6000 rpm with 141 N⋅m (104 lbf⋅ft) of torque at 4400 rpm. Commercial variant in Daihatsu Luxio and Daihatsu Gran Max has output of 97 PS (96 hp; 71 kW) at 6000 rpm with 13.7 kg⋅m (134 N⋅m) of torque at 4400 rpm. It features VVT-i.

Applications:

Transversal:
- Daihatsu Sirion
- Daihatsu Materia / Daihatsu Coo
- Toyota bB
- Toyota Passo Sette
- Perodua Alza (M500) (2009–2022)
- Perodua Myvi SE / Perodua Myvi Advance (2011–2017)
- Toyota Vios (China)
Longitudinal:
- Daihatsu Terios
- Daihatsu Gran Max (1.5-litre variants)
- Daihatsu Luxio
- Toyota Avanza (1.5-litre variants)
- Toyota Rush
- Toyota TownAce/LiteAce (2008–2020)