SDEC 68kW Diesel Engine 4HT4.3-G22

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Bradley: +27 62 743 5089 | bradley@sdecpower.co.za
Ruan: +27 66 511 2009 | ruan@sdecpower.co.za

We offer industry leading 24 month / 1,000 hour warranties on our engines and diesel generators.

The SDEC 68kW Diesel Engine (4HT4.3-G22) is an efficient 4.3L inline 4-cylinder engine designed for mid-range industrial and agricultural backup power systems. Built for 50kVA to 66kVA generators, this HT Series model uses an electronic governor to deliver steady power across changing electrical loads.

  • Power Output: Delivers 68kW standby power at 1500 RPM (50Hz), responding reliably to fluctuating power demands.
  • Precise Management: Features a 4-valve per cylinder design and an electronic governor for accurate engine speed control.
  • Leak Resistant Build: Uses a dry-liner block setup with an integrated internal lubrication structure that prevents external oil line leaks.
  • Logistics & Support: Supported by The Generator King with technical assistance, fast cross-border shipping, and a ready stock of genuine OEM parts.

We offer delivery across Sub-Saharan Africa at the best prices.

RELIABLE POWER GENERATION

SDEC was founded in 1947 and is a diesel engine manufacturer. They are ISO9001, QS9000 and TS16949 certified, which is testament to their quality and reliability.

GENERAL SPECIFICATIONS

SDEC 68kW Diesel Engine

Reliable Power and Better Airflow

The SDEC 4HT4.3-G22 engine features a modern 4-valve per cylinder layout that improves airflow and fuel mixing for a cleaner, more efficient burn. Paired with a responsive electronic governor, the engine adjusts its output immediately to match your power demands, ensuring steady frequency control when workshop tools or farming machinery switch on.

Engineered for Reliable Local Running

Built to handle the harsh climate variations of South African and Sub-Saharan regions, this engine uses a dry-liner block and a high-capacity water-cooled radiator to keep running temperatures stable. The lubrication system is built directly into the engine block, eliminating external lines to reduce the risk of oil leaks during extended power cuts.

Robust Build and Efficient Layout

Made with a high strength cast iron block and an integrated cylinder head, this engine uses premium components to handle challenging workloads. Its advanced 4-valve layout improves fuel efficiency and power delivery, making it a reliable choice for commercial, agricultural, and industrial backup setups.

Simplified, Easy Maintenance

The straightforward layout reduces mechanical complexity by cutting down on unnecessary parts. This keeps routine maintenance simple and less time consuming, ensuring the engine stays up and running when backing up critical local operations.

Key Technical Features

  • Efficient 4-Valve Build: The strong cylinder block and integrated head improve airflow and combustion to optimise fuel efficiency and extend engine life.

  • Precision Manufacturing: Built under the strict quality controls of SAIC Motor and verified by German automotive production standards for dependable consistency and performance.

  • Reliable Starting: Starts instantly without a pre-heater in temperatures down to -10°C, and handles extreme cold down to -30°C when using a heating device.

  • Clean Burning: Complies with Off-Road Stage II emission standards, ensuring a cleaner fuel burn and highly efficient consumption profiles.

PRODUCT SPECIFICATIONS

Weight 430 kg
Dimensions 101.8 × 71.6 × 98.9 cm
Brand

SDEC

Product Type

Diesel Engine

Bore × Stroke

105mm × 124mm

Prime Power (kW)

62kW

Standby Power(kW)

68kW

Prime Power

60kVA

Standby Power

66kVA

Engine Type

In-line, 4 Strokes, 4 Valves, Water-cooled

Aspiration

Turbo Charged

Cylinder Type

Dry Liner

Cylinders

4 Cylinders

Displacement

4.3L

Compression Ratio

17.5 : 1

Firing Order

1-3-4-2

Injection Timing

10°BTDC

Flywheel Housing (SAE)

SAE NO.3

Fuel Consumption @ 100%

15.1 l/h

Fuel Consumption @ 75%

11.8 l/h

Fuel Consumption @ 50%

8.1 l/h

Fuel Consumption @ 25%

4.9 l/h

Injection Pump

Beiyou In-line “AD” Type

Governor

Electronic Regulator

Feed Pump

Mechanical Type

Injection Nozzle

Multi hole Type

Opening Pressure

250 kg/cm2

Fuel Filter

Full Flow, Cartridge Type

Fuel Type

Diesel Fuel Oil

Mechanism Type

Overhead Valve

Number of Valves

Intake: 2, Exhaust: 2 Per Cylinder

Valve Lashes - Cold

Intake: 0.25mm, Exhaust: 0.50mm

Lubrication Method

Fully Forced Pressure Feed Type

Oil Pump

Gear Type Driven by Crankshaft

Oil Filter

Full Flow, Cartridge Type

Oil Pan Capacity

High Level: 3 litres, Low Level: 11 litres

Lubrication Angularity Limit

Front Down: 25 degrees, Front Up: 35 degrees, Side to Side: 35 degrees

Lubrication Oil

Refer to Operation Manual

Intake Valve Timing

Opening: 20.9°BTDC, Closing: 44.9°ABDC

Exhaust Valve Timing

Opening: 51.7°BBDC, Closing: 11.7°ATDC

Cooling Method

Fresh Water Forced Circulation

Water Capacity (Engine Only)

6.8 litres

Lid Minimum Pressure

70kPa

Water Pump

Centrifugal Type Driven by Belt

Water Pump Capacity

155L/min

Thermostat

Wax–pellet Type. Opening Temp. 82°C, Full Open Temp. 95°C

Cooling Fan

Plastic Blower. 500 mm diameter, 7 blades

Cooling Air Flow

2.3 m³/s

Heat Rejection to Coolant

6.2kcal/sec

Air Flow

4.8m3/min

Exhaust Gas Flow

11.5m3/min

Exhaust Gas Temperature

600 °C

Maximum Permissible Altitude

2000 m

Charging Generator

14V×80A

Voltage Regulator

Built-in IC Regulator

Starting Motor

12V×4.2kW

Battery Voltage

12V

Battery Capacity

120 AH

Category:
A partner in power generation

World-Class Manufacturing, Fast Regional Distribution

We source and manufacture high-quality generators, engines, and parts directly from leading global factories, including SDEC. 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 South African conditions. Whether you are a local generator builder looking for loose components or a business needing a complete commercial power setup, we ensure fast delivery, guaranteed stock availability, and dependable performance.

SDEC FACTORY | ROBOTIC ENGINE MANUFACTURING ASSEMBLY LINE

Our Delivery Channels

Sub-Saharan Logistics

We ship SDEC engines, diesel generators, alternators and 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.

FREQUENTLY ASKED QUESTIONS

Does the price include installation?

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.