Parameters:
- Model: 4Y Petrol/CNG, 4Y Petrol/LPG
- Type: 4 stroke, water cooling, inline, wedge shape combustion chamber
- Cylinders: 4
- Bore: 91mm
- Stroke: 86mm
- Displacement: 2.237 L
- Power/rpm: 58kw/4, 200-4,600rpm (CNG), 63kw/4, 200-4,600rpm (LPG)
- Idle speed/rpm: 750 ± 50rpm
- Max. torque/rpm: 150N.m/2,800-3,200rpm (CNG) 165N.m/2,800-3,200rpm (LPG)
- Fuel supply: Carburetor, petrol/CNG carburetor, petrol/LPG
- Mixer venturi or proportional
- Fuel RON 90 ( GB484) & CNG RON 90 (GB484) & LPG
- Min. fuel consumption Petrol d295g/kw.h, CNG d8.3m3/100km Petrold295g/kw.h, LPG d7kg/100km
- Oil SAE 15W40, special for CNG
- Oil consumption d 0.8 %
- Piston average speed 13.19m/s
- Crankshaft rotation ( facing to flywheel) anticlockwise
- Compression ratio 8.8
- Ignition order 1-3-4-2
- Distributing: Intake in advance: 12°, Intake in lag: 48° , Exhaust in advance: 54°, Exhaust in lag: 10°
- Cooling centrifugal water pumped cycling
- Lubricating: pressed and splashed
- Starting: electric starter
- Applications
- Toyota Van (Town Ace overseas specification, Tarago in Australia)
- Hiace third generation (overseas specification)
- 1979-1988 Toyota Stout (YK110)[citation needed]
- Daihatsu Delta
- Toyota Industries forklifts
- Toyota 4Runner (Australia)
- Volkswagen Taro