ال 1NZ و 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. المواصفات الفنية
المعلمة
1NZ-FE
2NZ-FE
النزوح
1497 cc
1298 cc
القطر × الشوط
75.0 mm × 84.7 mm
75.0 mm × 73.5 mm
نسبة الضغط
10.5:1
10.5:1
صمامات
DOHC, 4 valves per cylinder
DOHC, 4 valves per cylinder
Camshaft Control
VVT-i (intake side)
VVT-i (intake side)
مادة
سبائك الألومنيوم
سبائك الألومنيوم
نظام التبريد
مبردة بالماء
مبردة بالماء
نوع الوقود
الغازولين
الغازولين
3. أرقام OEM والمرجعية
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. المركبات المتوافقة
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. المزايا الرئيسية
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. المشاكل الشائعة
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. ملاحظات التثبيت
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.