1HZ 4.2L ENGINE ⋆ Buy Used Engines, Used Transmissions & Used Bicycles Online for sale

Toyota 1HZ engine is a 4.2-liter, 6-cylinder diesel engine with the following specifications ¹:
– Engine Details
– Type: Straight-6, vertical
– Displacement: 4,164 cc (254.1 cu in)
– Cylinder Block: Cast iron
– Cylinder Head: Cast iron with single overhead camshaft (SOHC)
– Valves: 12 (2 valves per cylinder)
– Fuel System: Mechanical injection pump
– Power Output: 129-131 horsepower at 3,800 rpm
– Torque Output: 279-284 Nm at 2,200 rpm

– Performance
– Compression Ratio: 22.7:1 or 22.4:1 (after 1998)
– Cylinder Bore: 94 mm
– Piston Stroke: 100 mm
– Firing Order: 1-4-2-6-3-5

– Maintenance
– Recommended Oil: 10W-30 or 10W-40
– Oil Capacity: 9.3 liters with filter change
– Valve Clearance: Intake 0.15-0.25 mm, Exhaust 0.35-0.45 mm

– Torque Specifications
– Main Bearing Cap: 103 Nm + 90° turn
– Connecting Rod Bearing: 37 Nm + 90° turn
– Cylinder Head: 69 Nm + 90° turn + 90° turn

The 1HZ engine is known for its reliability, durability, and ability to withstand extreme temperatures. It’s commonly used in Toyota Land Cruiser and Coaster models