Spring starter motors
Simple, mechanical, and built for total independence, for engines up to 12 litres.
Powerstart’s SureStart spring starter motors are a reliable and cost-effective way of providing manual starting for diesel engines. Coming in six different model sizes, they deliver reliability through simplicity.
To start an engine you simply wind the handle to energize the spring. When the trip lever is pushed the starter motor turns the engine. It is that simple.
Surestart spring starters are perfect for harsh environments and hazardous areas such as offshore and marine applications as they are unaffected by damp conditions. Because they are pre-engaged, SureStart spring starters are also ATEX compliant.
Spring starter models
Model
Max Engine Size
Max Torque
S20
1-4 litres
30 Nm
S30
1-5 litres
40 Nm
S40
3-8 litres
66 Nm
S50
4-12 litres
84 Nm
S60
4-12 litres
84 Nm
S70
4-12 litres
84 Nm
Advantages
Powerstart spring starters require no external power source — no air, hydraulics, or electrics — delivering complete independence in any location.
Mechanical simplicity means fewer moving parts, reduced maintenance, and instant readiness, even after long periods of inactivity.
Compact, durable, and field-proven, they’re ideal for remote, emergency, and standby equipment where dependable manual starting is essential.