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CA4SK1 Series Natural Gas Engine
CA4SK1 series natural gas engine — 5.2 L inline-4/6 natural gas engine from FAWDE. Rated power 160–200 PS, max torque up to 750 Nm, minimum fuel consumption 198 g/kW·h, noise ≤ 94 dB, natural-gas powered and Euro-compliant.
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The main technical parameters
Five characteristics of high possibility, low fuel consumption, high efficiency, low maintenance, and high power are industry-leading
| Project | Model | CA4SK1-16E6N | CA4SK1-18E6N | CA4SK1-20E6N |
| Displacement | L | 5.2 | ||
| Rated power/speed | Ps/r/min | 160/2300 | 180/2300 | 200/2300 |
| Max torque/speed | N·m/rlmin | 650/1200-1700 | 700/1200-1700 | 750/1200-1700 |
| External Characteristics Minimum Fuel Consumption Rate | g/kW·h | 198 | ||
| Noise | dB | ≤94 | ||
| Emission route | Equivalent Combustion+EGR+TWC | |||
| Overall Dimensions (length, width and height) | mm | 946x750x1110 | ||
| Engine mass (excluding aftertreatment) | kg | 480 | ||
Security escort
Monitor gas leakage, automatically cut off gas when a fault occurs, detect in-cylinder combustion in real time, and double knock sensors to protect important components.
Reliable & Durable
BOSCH’s new generation of gas injection system and electronic control system provides more precise control.
New natural gas cylinder head for more adequate cooling.
Integral cast spark plug sleeve, tighter seal, imported connecting rod bush, stronger wear resistance and longer service life.
Advanced comfort
German standard drum-shaped long gear transmission, the gear train is exquisitely designed, the force is small, the meshing is smooth, and the noise per meter is less than 92 decibels.
The CA4SK1 series natural gas engine is a versatile and efficient powertrain engineered for light- to medium-duty buses and trucks. As an advanced “euro v vehicle engine ca4sk1” solution, it features a 5.2 litre displacement paired with a robust natural-gas injection and electronic control system. Output options include 160, 180 and 200 PS (at 2300 rpm), while peak torque spans from 650 Nm up to 750 Nm (within 1200–1700 rpm), offering reliable pulling power under various road and load conditions.
Fuel economy is enhanced with a minimum fuel consumption rate of 198 g/kW·h.
Noise levels remain under 94 dB, making the engine well suited for urban and regional transport where comfort and regulatory compliance matter.
The compact dimensions and modest mass facilitate easy installation in a broad range of chassis configurations. Advanced safety features are integrated, including real-time combustion monitoring, automatic gas-leak detection and shutdown, as well as dual knock sensors to safeguard critical components.
With its balanced mix of performance, efficiency, safety and environmental friendliness, the CA4SK1 natural gas engine provides a compelling choice for fleet operators and vehicle manufacturers seeking a modern, emission-smart solution.
Get a Quote for CA4SK1 Series Natural Gas Engine
Factory-direct pricing from the exclusive FAWDE export distributor. We reply within 12 hours.