M38

The M38 hydraulic starter motor delivers high torque and exceptional durability for the most demanding applications.

Capable of producing a maximum torque of 124Nm at 3,000 psi (207 bar), the M38 is fully cast iron (including the flange and pinion housing), making it suitable for all environments and highly resistant to damage.

SOLUTION DETAILS

Heavy-duty design

The M38 hydraulic starter motor is engineered for high performance, producing up to 124Nm of torque at 3,000 psi (207 bar). Its fully cast iron construction, including the flange and pinion housing, ensures maximum durability and resistance to wear in all operating conditions.

Precision-machined components

The M38 is fitted with a heavy-duty inertia bendix and pinions, machined from a single cast block. This eliminates the process of pressing the pinion onto the bendix cup—a common failure point in other starter motors.

Non-spark pinion option

Depending on the application, the M38 can be supplied with either a steel or beryllium-copper pinion. In potentially hazardous environments, the beryllium-copper pinion further reduces the risk of sparks.

Key Advantages

  • Interchangeable design: Both the pinion and mounting flange are interchangeable, allowing the starter motor to be customised to fit most types of engine.
  • Guaranteed start: Hydraulic energy can be stored indefinitely when the system is installed and maintained to Powerstart specifications. It can be quickly and easily recharged via a hand pump.
  • Performance in all conditions: Operates effectively in extreme hot or cold temperatures when the correct oil viscosity is used, and performs reliably even after long shutdown periods.
  • Low maintenance: Designed to last as long as your engine, with enclosed internal components immersed in oil for protection against environmental damage – minimising maintenance and replacement costs.

Optional Features and Configurations

Technical Specs

Performance

Max Torque

124 Nm / 92 lb·ft

Max Working Pressure

21 MPa / 3000 psi

Design Pressure

25 MPa / 3,600 psi

Viscosity Range

32 to 46 ISO / 140-230 SUS

Speed Range

0-3000 rpm

Duty Cycle

Intermittent

Volumetric Efficiency

95% minimum

Temperature Range

-40°C to +100°C / -40°F to +212°F

Physical

Displacement

38 cc / 2.32 cu.in.

Length

441 mm / 17.4 in

Diameter

130.0 mm / 15.1 in

Mass

21.5 kg / 47.4 lb

Construction

Cast iron (ductile iron)

Fluid media

Mineral oil

Rotation

Clockwise (counter-clockwise optional)

Inlet port

SAE 12

Outlet port

SAE 12

Power Curves

Compare Solutions

Model

Max Engine Size

Max Torque

M10

1-4 litres

30 Nm

M16

1-5 litres

40 Nm

M22

3-8 litres

66 Nm

M28

4-12 litres

84 Nm

M33

TBC

TBC

M38

TBC

124 Nm

M66

TBC

216 Nm

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