The Toyota 1HZ is an engine developed by Toyota Motor Corporation for the Toyota Land Cruiser and the Toyota Coaster Bus of 1990. It replaced the previous (2H) heavy duty engine which was being used in older Toyota Land Cruiser models.
| Toyota HZ engine | |
|---|---|
A Toyota 1-HZ engine installed in the Land Cruiser.
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| Overview | |
| Manufacturer | Toyota Motor Company |
| Production | 1990-2007 |
| Layout | |
| Configuration | Straight-6 |
| Displacement | 4.2 L (4,164 cc) |
| Cylinder bore | 94 mm (3.70 in) |
| Piston stroke | 100 mm (3.94 in) |
| Block material | Cast iron |
| Head material | Cast iron |
| Valvetrain | SOHC with 2 valves per cylinder |
| Timing drive system | Timing belt |
| Compression ratio | 22.4:1 |
| RPM range | |
| Redline | 4000 |
| Combustion | |
| Fuel system | Mechanical fuel injection |
| Fuel type | Diesel |
| Oil system | Wet sump |
| Cooling system | Water-cooled |
| Output | |
| Power output | 131 PS (129 hp; 96 kW) |
| Torque output | 285 N⋅m (29 kg⋅m; 210 lb⋅ft) |
| Chronology | |
| Predecessor | Toyota H engine |
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