ST400C03R31-285 Turbine Air Starter by Ingersoll Rand
- SKU:
- ST400C03R31-285
Manufacturer: Ingersoll Rand
Guaranteed 100% Authentic
Made in the USA
Condition: New
*Rebuilt Models Have the letter "R" at the end of their model number
Get our best pricing: add it to your quote
View your quote list and send the request
Our Phone #: 1-800-353-4676
Our Email: [email protected]
Description
The Ingersoll Rand ST400C03R31-285 is a genuine IR ST400-series turbine air starter for 90 to 150 psi air supplies. It is the -285 special build of the ST400C03R31. The full description, with performance data, the engines that use it and answers to common questions, is on the ST400C03R31 page.

What the -285 Suffix Means
The -285 suffix marks a special build of the ST400C03R31. Ingersoll Rand does not define it in its published model coding, so we confirm the exact configuration with you before the order ships.
ST400C03R31-285 Specifications
| Ingersoll Rand ST400C03R31-285 technical data | |
|---|---|
| Manufacturer / series | Ingersoll Rand ST400 series (ST400) |
| Motor type | Radial turbine, 44% arc, lube-free |
| Engagement | Inertia, overhung pinion |
| Operating pressure | 90 to 150 psi (maximum 150 psi) |
| Maximum power | 25 hp (19 kW) |
| Breakaway torque | 150 ft-lb (203 N·m) at 150 psi |
| Air consumption | 750 scfm (354 L/s) at maximum power |
| Gear ratio | "C" ratio; gears and bearings run in a sealed oil bath |
| Mounting | SAE No. 3 flange (code 03); the removable flange can be rotated 360° |
| Pinion (code 31) | 12 teeth, 6/8 pitch |
| Rotation | Right-hand (R) |
| Suffix | -285 (special build; we confirm the exact configuration with you) |
| Air inlet | SAE J518 split-flange inlet (no letter in the model number) |
| Engine size (ST400 series) | Diesel engines from 5 to 60 L (300 to 3,600 cu. in.) |
| Weight | 38 lb (17.2 kg) |
| Lubrication | None required for the turbine motor |
How to Read the Model Number
| Code | Meaning |
|---|---|
| ST400 | ST400 series, 44% arc turbine, 150 psi maximum |
| (none) | SAE split-flange inlet (I = 1 in. NPT inlet) |
| C | Gear ratio |
| 03 | SAE No. 3 mounting flange (01 = SAE No. 1, 03 = SAE No. 3) |
| R | Right-hand rotation |
| 31 | Pinion: 12-tooth 6/8 pitch |
| -285 | Special-build suffix (not defined in IR's published ST400 coding) |
Buy from a Factory-Authorized Ingersoll Rand Distributor
AirStartersDirect.com is a factory-authorized Ingersoll Rand distributor operated by Zampini Industrial Group, which has supplied engine starting equipment since 1987. Every ST400C03R31-285 we sell is new, genuine Ingersoll Rand equipment. Call 1-800-353-4676 with your engine make, model and serial number for a fast quote and free selection help.
Specifications source: Ingersoll Rand Engine Starting Systems catalog and Ingersoll Rand ST400 Series Air Starters.
Ingersoll Rand pneumatic air starters can replace any factory mounted starter engine and simultaneously offer a variety of helpful benefits. Compared to conventional electric starters, a pneumatic air starter occupies considerably less space as it is run by air. Pneumatic air starters are also considered safer in hazardous environments as they do not produce electrical sparks like electric starters sometimes do, thus eliminating the risk of igniting flammable materials that may be present.
Ingersoll Rand air starters have significantly more torque than electric starters of equivalent size, and that allows even a small air starter to start very large engines and turbines. In addition, electric starters as well as their wiring may become excessively hot in the event that it takes longer than expected to start the engine, while air-starters can be run for as long as their air supply lasts. Turbine starters provide even more torque and tend to be simpler, and therefore are a natural fit for turbine engines. Turbine air starters are utilized extensively on large turbofan engines commercial and military aircraft; as well as marine ships and vessels, trains, heavy construction equipment, and more.
ST400 Series Manuals and Parts Lists
- ST400 Turbine Powered Air Starter Installation and Maintenance Manual (P7061) Installation & maintenance manual, 20 pages
- ST400-C339 Solenoid Valve Installation and Maintenance Manual (04666358) Installation & maintenance manual, 8 pages
- Phoenix ST400 Air Starting Systems for Industrial and Marine Applications (Form 52499) Brochure, 2 pages
- Engine Starting Systems Catalog: Turbine, Vane and Gas Turbine Air Starters, Barring Motors and Accessories (ENG32760) Catalog, 64 pages
- AirStartersDirect 2024 Ingersoll Rand Air Starter Catalog: Turbine Starters, Vane Starters, Barring Motors and Accessories Catalog, 168 pages
- Air Starter Accessories Catalog Section: Valves, Strainers, Mufflers, Regulators and Lubricators Catalog, 18 pages
- Engine Starting Systems Air Starter Catalog (Form 51600-C) Catalog, 68 pages
Specifications
Series: |
ST400 |
Model: |
ST400 |
Starter Type: |
Turbine |
Engagement: |
Pre-engaged |
Pinion Rotation: |
Right hand |
Pinion: |
12 teeth, 6/8 DP |
Pinion Code: |
31 |
Mounting Flange: |
SAE 3 |
Max Power: |
25 hp (19 kW) at 150 psi |
Supply Pressure: |
90-150 psi |
Max Supply Pressure: |
150 psi |
Diesel Engines Up To: |
60 L |
Air Consumption: |
750 scfm (354 L/s) at 150 psi |
Air Inlet: |
SAE split flange |
Frequently Asked Questions
Turbine Air Starter Category Links
Questions? Need Help Finding The Right Air Starter? Use Our Fast Response Form Below