Applicable Engine:
1NZ / 2NZ
Applicable Brand:
TOYOTA
Applicable Car:
Vios / Yaris / Belta / Corolla / Echo / Platz / Probox / Succeed
Product parameters:
| Displacement | Fuel | Cylinder | Vale | Camshaft | Year |
| 1.3 / 1.5 | Gasoline | 4 | 16 | 2 | 1999- |
Cylinder Head
Toyota 1NZ 2NZ Engine Cylinder Head Vios Yaris Belta Corolla
Introduction
Product NO.
| ML NO. | OEM NO. | REF NO. |
| MLG028 | 1110121034 1110121030 |
Product Information Cylinder Head
The 1NZ and 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. Technical Specifications
| Parameter | 1NZ-FE | 2NZ-FE |
|---|---|---|
| Displacement | 1497 cc | 1298 cc |
| Bore × Stroke | 75.0 mm × 84.7 mm | 75.0 mm × 73.5 mm |
| Compression Ratio | 10.5:1 | 10.5:1 |
| Valvetrain | DOHC, 4 valves per cylinder | DOHC, 4 valves per cylinder |
| Camshaft Control | VVT-i (intake side) | VVT-i (intake side) |
| Material | Aluminum alloy | Aluminum alloy |
| Cooling System | Water-cooled | Water-cooled |
| Fuel Type | Gasoline | Gasoline |
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. Compatible Vehicles
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. Common Issues
- 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. Installation Notes
- 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.
8. Packaging & Shipping
- Foam-protected export cartons or wooden crates.
- Neutral or customized packaging available.
- In-stock items: 3–5 working days delivery.
- OEM/ODM services supported.