Ingersoll Rand ST775GCDP03R51-2N turbine air starter – ST700, 75% arc, gas-sealed, SAE 3 flange, 15T pinion DP 6/8, right-hand rotation

Ingersoll Rand ST775GCDP03R51-2N is an ST700 series pre-engaged turbine air starter for starting diesel and gas engines in marine, power generation, oil & gas and off-highway applications. Sealed for operation on compressed air or natural gas.

Orientation -2N: position code 2N. The orientation only defines how the starter sits on the engine (inlet, exhaust and drive housing positions). The starter itself is the same as other ST775GCDP03R51 variants – choose the one that fits your engine installation, or ask us.

  • turbine
  • 75% arc
  • gas-sealed
  • gear ratio C
  • pre-engaged
  • SAE 3 flange
  • 15-tooth pinion, DP 6/8
  • right-hand rotation
Other versions in the ST700 seriesCompare all in a table →
Gear ratioBC
EngagementInertiaPre-engaged
RotationLeft-handRight-hand
Orientation diagram
Rear view – inlet and exhaustRear view – inlet and exhaust0123Flange view – drive housingFlange view – drive housingABCDEFGHIJKLMNOP

Code -2N: Inlet 2 · fixed exhaust (deflector) · Drive housing N

Positions per the Ingersoll Rand installation manual: inlet and exhaust 4 × 90°, drive housing 16 × 22.5°. The drive housing letter shows the position of the control ports (reference hole on inertia models). Always check against your engine installation drawing.

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