We offer industry leading 24 month / 1,000 hour warranties on our engines and diesel generators.
The Baudouin 490kW Diesel Engine (6M21G550/5) is an inline six cylinder engine designed for heavy commercial, manufacturing, retail and industrial applications. This 12.5 litre engine supplies the energy for 500kVA prime to 550kVA standby generators.
Power Output: Delivers 490kW standby power at 1500 RPM to manage sudden load changes efficiently.
Air Management: Employs single stage exhaust turbo charging and an air to air charge air cooler.
Starting Grid: Uses a 24V dual battery electrical layout with an 8.5kW motor to guarantee immediate engine starting.
Support & Parts: Distributed by The Generator King with specialised technical alignment and direct regional parts supply.
We offer delivery across Sub-Saharan Africa at the best prices.
Baudouin was founded in 1918 and is a premier diesel engine manufacturer. They are ISO9001, ISO14001 and ISO45001 certified, which is testament to their quality and reliability.
The 6M21G550/5 uses a 12.5 litre displacement to provide consistent mechanical power for office parks, malls, agricultural setups and industrial sites. It pairs directly with industrial alternators to supply continuous electricity whenever the main grid fails.
Exhaust Turbo Charging and Cooling
The engine combines single stage turbo charging with an air to air charge cooler to manage air density. This design speeds up transient recovery times, preventing frequency variations when heavy electrical machinery is switched on.
Integrated Control Unit
An Engine Control Unit manages the fuel delivery system to match the output with changing load demands. The simple layout allows technicians clear access for filter replacements and regular maintenance checks.
Electric Starting
The starting system relies on an 8.5kW cranking motor powered by a 24V twin battery bank. This setup delivers quick starting capabilities, allowing automated transfer systems to bring a generator online quickly during a blackout.
Key Technical Features
Fuel Management: The electronics optimise internal combustion to keep ongoing fuel consumption predictable.
Climate Tolerance: Engineered to run continuously in demanding regional environments without losing power efficiency.
Prompt Firing: The high torque 8.5kW motor ensures quick starting in all weather conditions.
Standard Compliance: Manufactured under strict European quality controls to ensure consistent performance.
PRODUCT SPECIFICATIONS
Weight
1000 kg
Dimensions
203.2 × 123.2 × 149 cm
Brand
Baudouin
Product Type
Diesel Engine
Prime Power (kW)
450kW
Standby Power(kW)
490kW
Prime Power
500kVA
Standby Power
550kVA
Cylinders
Cylinders: 6, Valves: 24
Cylinder Arrangement
Inline
Bore × Stroke
127mm x 165mm
Displacement
12.54L
Thermodynamic Cycle
Diesel 4 Stroke
Mean Piston Speed (m/s)
8.25 m/s
BMEP @ ESP (Bar)
31.26 Bar
Cooling System
Liquid (water + 50% antifreeze)
Injection System
Direct Injection
Fuel System
High Pressure Common Rail
Aspiration
Turbo Charged with Aftercooler
Compression Ratio
15.2 : 1
Flywheel Housing (SAE)
SAE NO.1
Flywheel Clutch Size (Inches)
14"
Teeth on Flywheel Ring Gear
136 Teeth
Inertia of flywheel (kg•m²)
2.32 kg•m²
Inertia of crankshaft (kg•m²)
0.574 kg•m²
Emission Standard
N/A
Air Intake Temperature Rise
≤ 15°C
Recommended Air Flow @ PRP (m³/min)
33 m³/min
Minimum Diameter of Intake Pipe (mm)
100mm
Aftercooler System Type
Air to Air
Oil Capacity (L)
High Level: 34 litres, Low Level: 29 litres
Oil pressure in normal condition at 1500 Rpm @ PRP (Bar)
3.5 Bar – 5.5 Bar
Maximum Oil temperature (°C)
105°C
Oil Flow at 1500RPM (L/min)
≥ 180 L/min
Total Heat Dissipation @ ESP (kJ/s)
770.4 kJ/s
Maximum Exhaust Back Pressure (mBar)
120 mBar
Maximum Exhaust Temperature Before Turbocharger (°C)
740°C
Maximum Exhaust Temperature After Turbocharger (°C)
580°C
Exhaust Gas Flow
102.3 m³/min
Minimum Diameter of Exhaust Pipe (mm)
100mm
Maximum Bending Moment of Exhaust Gas Exit Flange (Nm)
19 Nm
Governor
ECU
Governor Steady State Speed Stability at Constant Load (ISO 8528-5 Class G3)
≤ +/- 0.5 %
Fuel Supply Flow (L/hr)
400 L/hr
Fuel Type
Diesel Fuel Oil
Electrical System Voltage (negative to ground) (Vdc)
24Vdc
Starter Power (kW)
8.5kW
Battery Charger Current (A)
70A
Battery Charger Absorbed Power (kW)
1.96kW
Diesel Engine Noise (Acoustic Power Level) (dB(A))
World Class Manufacturing, Fast Regional Distribution
The Generator King is the sole authorised distributor of StromerPower Alternators in Sub-Saharan Africa. By dealing with us directly you cut out the middlemen, saving you time and money.
Every engine, alternator, and spare part we supply is built to international standards and fully tested to handle tough conditions. Whether you are a local generator builder looking for a StromerPower alternator, a diesel engine, OEM spare parts or a business needing a complete power setup, we ensure fast delivery, large stock availability and reliable performance.
STROMERPOWER FACTORY | MANUFACTURING & ASSEMBLY LINE
Our Delivery Channels
Sub-Saharan Logistics
We ship StromerPower alternators, leading brand diesel engines and OEM diesel generators as well as OEM spare parts throughout South Africa and across the continent, including Namibia, Botswana, Malawi, Mozambique, Zambia, Zimbabwe, Swaziland, and Lesotho.
Our team handles the entire logistics process, from factory loading to cross border transport, ensuring your equipment arrives safely and on time.
We hold a large volume of stock and genuine replacement parts at our warehouses so we can supply clients across Africa quickly and efficiently.
No, installation is not included in the price. Any qualified electrician can install the kit and provide a Certificate of Compliance (COC) for the installation as per legislation.
Do you offer installation?
No, we do not offer any installation services, but, any qualified electrician can install our products.
Does the price include delivery?
Delivery is not included in any of the prices. However, delivery will be calculated in your cart at checkout based on your location and product selection.
Tell me about the Warranty
Our product warranty is detailed on each product page and as per our standard terms along with a valid COC. It is a limited warranty.
Price validity
All pricing is valid while stocks last as reflected on your quotation, as specified therein.
