TOYOTA 1HD-T — 4.2L Engine
4.2L · 167 hp
Engine overview
Factory specifications
Values from the manufacturer documentation for this engine.
Engine (general)
| Engine code | 1HD-T |
| Capacity | 4164 cc |
| Idle speed | 650 rpm |
| Inlet | 0.20 mm |
| Exhaust | 0.40 mm |
| Normal | 35 bar |
| Minimum | 25 bar |
| Oil pressure | 2.5 - 6.1/3000 bar/rpm |
| Idle speed | 600 - 700 (725 - 850) rpm |
| Automatic | 700 - 800 rpm |
| Inlet | 0.15 - 0.25 mm |
| Exhaust | 0.35 - 0.45 mm |
| Normal | 34.3 bar |
| Minimum | 24.5 bar |
| Differential limit between cylinders | < 4.9 bar |
| Oil pressure | > 0.3 bar/rpm |
| Oil pressure | 2.5-6.0 / 3000 bar/rpm |
Engine (diesel)
| Injection pump (make and type) | Denso 22100-54750 |
| Number of cylinders | 6 |
| Injector firing order | 1-4-2-6-3-5 |
| Injection pump timing (static) | 1.29 - 1.35 mm |
| Injector pressure | 129 - 135 bar |
| Injector pressure | 176 - 186 bar |
| Exhaust gas analysis (opacity) | 66 % |
| Exhaust gas analysis | 2.50 m-1 |
| Exhaust gas analysis test method (Germany only) | B |
| Oil temperature during test | 80 °C |
| Test time | 1 s |
| Idle speed, minimum | 650 rpm |
| Idle speed, maximum | 800 rpm |
| Min. no-load governed speed | 4350 rpm |
| Max. no-load governed speed | 4400 rpm |
| Injection pump (make and type) | Denso |
| Injection pump timing (static) | 1.18 - 1.24 mm |
| Injector pressure | 177 - 186 bar |
| Injector pressure | 132 - 142 bar |
| Glow plug resistance | 0.75 ohms |
| Max. no-load governed speed | 4300 - 4500 rpm |
Cooling system
| Cap pressure | 0.7 - 1.0 bar |
| Thermostat opens at | 74 - 78 °C |
| Cap pressure | 0.95 - 1.25 bar |
| Thermostat opens at | 76 ± 2 °C |
Electrical
| Battery | 70 Ah |
| Alternator | 55 A |
| Alternator | 70 / 80 / 120 A |
Brakes
| Disc thickness, front, min. | 23.0 mm |
| Disc thickness, rear, min. | 16.0 mm |
| Drum diameter, rear, max. | 297.0 mm |
| Disc thickness, front | 25.0 mm |
| Disc run-out, max. | 0.15 mm |
| Disc thickness, rear | 18.0 mm |
| Disc run-out, max. | 0.09 mm |
| Drum diameter, rear | 295.0 mm |
| Drum lining thickness, min. | 1.5 mm |
| Parking drum diameter, max. | 211.0 mm |
Steering and wheel alignment
| Toe-out, front | 2.0 ± 2.0 mm |
| Camber, front | 1°00' ± 0°45' ° |
| Castor, front | 3°00' ± 1°00' ° |
| K.P.I., front | 13°00' ± 0°45' ° |
| Toe-in, front | 2 ± 2 mm |
| Camber, front | 1° 00' ± 45' ° |
| Max. difference left side - right side | 30' ° |
| Castor, front | 1° 40' ± 1° ° |
| Castor, front | 3° 00' ± 1° ° |
| K.P.I., front | 13° 00' ± 45' ° |
Wheels and tyres
| Tyre size | 215/80R16 265/75R16 |
| Front tyre pressure | 215/80: 2.4 265/75: 1.8 bar |
| Rear tyre pressure | 215/80: 3.0 265/75: 2.2 bar |
| Tyre size | 215/80 R16 |
| Front tyre pressure | 2.3 bar |
| Rear tyre pressure | 2.4 bar |
| Tyre size | 265/75 R16 |
| Front tyre pressure | 1.8 bar |
| Rear tyre pressure | 1.8 bar |
Capacities
| Engine sump, incl. filter | 9.3 l |
| Gearbox refill | 2.7 l |
| Gearbox refill | 6.0 l |
| Transfer box | 1.3 l |
| Differential, 4WD front | 2.6 l |
| Differential, 4WD rear | 2.5 l |
| Cooling system | 12.0 l |
| Manual transmission | H151F |
| Gearbox refill | 2.6 l |
| Automatic transmission | A442F |
| Differential, 4WD front | 2.8 l |
| Differential, 4WD front | 2.65 l |
| Differential, 4WD rear | 2.8 l |
| Air-conditioner refrigerant | 900 ± 50 g |
| Air-conditioner refrigerant | 1350 ± 50 g |
| Air-conditioner refrigerant | 1500 ± 50 g |
Torque settings
| Cylinder head bolts — Stage 1 | 69 Nm |
| Cylinder head bolts — Stage 2 | +90° Nm |
| Cylinder head bolts — Stage 3 | +90° Nm |
| Wheel nuts | 147 Nm |
| Injector nozzle | 64 Nm |
| Glow plugs | 39 Nm |
| Cylinder head bolts — Stage 1 | 68.6 Nm |
| Cylinder head bolts — Stage 2 | 90 Nm |
| Cylinder head bolts — Stage 3 | 90 Nm |
| Oil plug | 34 Nm |
| Glow plugs | 13 Nm |
| Big-end bearing cap — Stage 1 | 36.8 Nm |
| Big-end bearing cap — Stage 2 | 90 ° |
Workshop procedures for this engine
Step-by-step procedures from the workshop database.
Got a 1HD-T problem? Ask for free.
Describe the symptoms — TorqFix replies with a diagnosis cited from verified workshop data.
Get free diagnosis →Who makes these pages, and how
TorqFix was built by a mechanic — after a 2,700 km drive with five roadside repairs that no diagnostic tool could explain.
The figures on this page come from manufacturer workshop documentation and are shown as they are. The page is assembled automatically from that data — it is not written by an AI. The AI works in the chat, where it answers for your specific car. It writes nothing here.
Variants of the same model differ. Cross-check torque against the factory manual for your engine before final tightening.
Seen a figure that does not match your manual? Write to us — we correct it and note when. support@torqfix.com
The story behind TorqFix →Workshop data on this page last updated 22 Aug 2026.