O 1NZ e 2NZ engines are part of Toyota’s NZ family of inline 4-cylinder gasoline engines, known for their compact design, fuel efficiency, and durability.
1NZ-FE: 1.5L, DOHC, 16-valve, VVT-i
2NZ-FE: 1.3L, DOHC, 16-valve, VVT-i
The cylinder head is made from lightweight aluminum alloy, with cross-flow design and optimized intake/exhaust port geometry for improved combustion efficiency.
2. Especificações Técnicas
Parâmetro
1NZ-FE
2NZ-FE
Deslocamento
1497 cc
1298 cc
Diâmetro × Curso
75.0 mm × 84.7 mm
75.0 mm × 73.5 mm
Taxa de compressão
10.5:1
10.5:1
Trem de válvulas
DOHC, 4 valves per cylinder
DOHC, 4 valves per cylinder
Camshaft Control
VVT-i (intake side)
VVT-i (intake side)
Material
Liga de alumínio
Liga de alumínio
Sistema de refrigeração
Refrigerado a água
Refrigerado a água
Tipo de combustível
Gasolina
Gasolina
3. OEM & Reference Numbers
1NZ-FE Cylinder Head:
OEM: 11101-23040, 11101-23041, 11101-23042
Casting No.: 1NZ
2NZ-FE Cylinder Head:
OEM: 11101-23020, 11101-23021, 11101-23022
Casting No.: 2NZ
4. Veículos compatíveis
1NZ-FE Applications:
Toyota Vios / Yaris / Belta (2002–present)
Toyota Corolla (select Asian markets)
Toyota Echo / Platz (2000–2005)
Toyota Probox / Succeed (2002–present)
2NZ-FE Applications:
Toyota Yaris (2000–2012)
Toyota Platz (2000–2005)
Toyota Vios 1.3L (2002–2012)
Toyota Corolla (select models)
5. Key Advantages
Lightweight aluminum construction for improved fuel economy.
VVT-i compatibility for better torque and efficiency.
OEM-standard machining ensures perfect sealing and fitment.
Optimized coolant passages to reduce hot spots and prevent warping.
Multi-vehicle fitment increases versatility for distributors.
6. Problemas comuns
Overheating leading to head warping.
Valve stem seal wear causing oil consumption.
Cracks between valve seats in extreme conditions.
Camshaft bearing wear in high-mileage engines.
7. Notas de instalação
Always check cylinder block flatness before installation.
Replace head gasket and bolts with OEM or equivalent quality.
Follow Toyota’s torque sequence and specifications.
Ensure proper VVT-i timing setup during reassembly.
Flush cooling system and replace coolant after installation.
