SISU

SISU and Valmet have stood for reliable Finnish engine engineering for over 70 years, running dependably even under harsh operating conditions. We supply original and OEM spare parts for the common series of these brands – from compact three-cylinder units to high-output marine engines.

SISU 320 DSG
A three-cylinder base engine with 3.0 litres displacement, mainly used as a compact generator drive. We stock common wear parts for this older but widely used series.

SISU 420 DSG / DSRG
The four-cylinder entry-level classic, most commonly used as an onboard generator on fishing and coastal vessels. We stock cylinder heads, gaskets, water pumps and starters for this series.

SISU 612 DSG
A six-cylinder engine in the mid-power range, fitted in generator sets as well as agricultural and offshore equipment. Known for straightforward maintenance and long service life, which keeps demand for matching spare parts high.

SISU 620 DSRG
A comparable power class to the 612, frequently found as the main drive on smaller working and fishing vessels. For this series we stock coolant thermostats, wet-type air filters and gasket sets.

SISU 634 DSBG / DSBAG / DSBIG
The most widely used SISU series overall: 7.4 litres of displacement, six cylinders. Nearly every second inquiry in our warehouse concerns a model from this line. Primarily used as a marine generator, often paired with Stamford alternators.

CTIM Series: 44 – 49 – 66 – 74 – 84
The modern marine series from AGCO Power (formerly SisuDiesel) with common-rail injection and turbocharging. The 44 CTIM is the only model still fitted with a classic two-valve cylinder head, while the other variants use four-valve technology for improved gas flow and lower emissions.

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POWER TABLE – ALL MODELS

Model | Cylinders/Valves | Displacement | Power | Speed
SISU 320 DSG | 3 | 3,0 l | 53 kW / 72 PS | 1500 U/min
SISU 420 DSG | 4 | 4,2 l | 74 kW / 100 PS | 1500 U/min
SISU 420 DSRG | 4 | 4,2 l | 70 kW / 95 PS | 1500 U/min
SISU 612 DSG | 6 | 6,0 l | 123 kW / 167 PS | 1500 U/min
SISU 620 DSRG | 6 | 6,0 l | 110 kW / 150 PS | 1500 U/min
SISU 634 DSBG | 6 | 7,4 l | 130 kW / 177 PS | 1500 U/min
SISU 44 CTIM | 4/2V | 4,4 l | 100 kW / 136 PS | 2200 U/min
SISU 49 CTIM | 4/4V | 4,9 l | 133 kW / 180 PS | 2200 U/min
SISU 66 CTIM | 6/4V | 6,6 l | 192 kW / 260 PS | 2200 U/min
SISU 74 CTIM | 6/4V | 7,4 l | 235 kW / 320 PS | 2200 U/min
SISU 84 CTIM | 6/4V | 8,4 l | 305 kW / 415 PS | 2100 U/min