| Technical Parameters | |||
| Model | OA6SF3-21 | OA6SF3-23 | OA6SF3-26 |
| Type | Vertical, in-line, water cooled, 4strokes, Turbocharged, air-air intercooled | ||
| Compression Ratio | 12:01 | 12:01 | 10.5:1 |
| Bore | 110mm | ||
| Stroke | 125mm | ||
| Fuel | CNG/LNG | ||
| Number of Cylinders/Displacement | 6/ 7.127L | ||
| Advertised Power (r/min) | 155kw/2300 | 171kw/2300 | 192kw/2300 |
| Max Torque (r.min) | 650N.m/1400 | 800N.m/1400 | 930N.m/1400 |
| Idle Speed | 700±50 r.min | ||
| Maximum no load governed speed | 2530 r.min | ||
| Firing Order | 1-5-3-6-2-4 | ||
| Liner Type | Wet | ||
| Rotation Direction | Anti-clockwise (seen from the flywheel) | ||
| Starting Method | Eclectric starting | ||
| Exhaust Temperature | ≤680℃ | ||
| Exhaust Back Pressure | ≤10kPa | ||
| Gas Supply Method | Eclectronically controlled Multi-point Port Injection | ||
| Gas Operating Pressure | 0.9MPa (CNG)/0.5MPa (LNG) | ||
| Firing Method | Electronic spark ignition without distributor | ||
| Air Supply Control | ECU control manifold valve | ||
| Combustion Control | Wide-range sensor, lean combustion, closed loop | ||
| Min.SFC | ≤196g(KW.h) | ||
| Battery | 24v | ||
| The percentage of Oil/Fuel Consumption | ≤0.3% | ||
| Emission Level | EURO Ⅲ, EURO Ⅳ | ||
| Lubricating Direction | Compound (Pressure and splash lubrication) | ||
| Oil pressure of major oil rail | Idling speed: ≥150kPa Operation: ≥350-600kPa | ||
| Turbocharger Type | Water-cooled turbocharger, two waste gates | ||
| Valve Clearance | Intake(cool)0.35mm±0.05 Exhaust(cool)0.40mm±0.05 | ||
| Net Weight | 650kg | ||