Ingersoll Rand ST1099BP03R31S-2D turbine air starter – ST1000, 99% arc, SAE 3 flange, 12T pinion DP 6/8, right-hand rotation

Ingersoll Rand ST1099BP03R31S-2D is an ST1000 series pre-engaged turbine air starter for starting diesel and gas engines in marine, power generation, oil & gas and off-highway applications. Power up to 70 hp (52 kW) at 10 bar.

Orientation S-2D: straight exhaust (no elbow), position code 2D. 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 ST1099BP03R31 variants – choose the one that fits your engine installation, or ask us.

  • turbine
  • 99% arc
  • gear ratio B
  • pre-engaged
  • SAE 3 flange
  • 12-tooth pinion, DP 6/8
  • right-hand rotation
Other versions in the ST1000 seriesCompare all in a table →
ModelST1060 · 60% arcST1099 · 99% arc
Gear ratioBCD
EngagementInertiaPre-engaged
FlangeSAE 3IR 09
RotationLeft-handRight-hand
ExhaustElbowStraight (S)
Orientation0H1G2A2D2G02G2NGE1POS
Orientation diagram
Rear view – inlet and exhaustRear view – inlet and exhaust0123SFlange view – drive housingFlange view – drive housingABCDEFGHIJKLMNOP

Code S-2D: Inlet 2 · straight exhaust (S) · Drive housing D

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.

Request a quote

Price and delivery time on quotation.

How can we help?

Need a quote, technical advice, service or spare parts? Get in touch.

Similar models

Compatible accessories

Service and spare parts 10