Introduction
The Ingersoll Rand 47550996001 54509427 Air/Oil Separator Element is a maintenance-focused component for compatible oil-injected rotary screw compressors. The 54509427 reference is documented as an Ingersoll Rand OE separator number, while 47550996001 provides the associated preventive-maintenance context for the New Cobra 90–160 / M90–160 compressor family.
Air/oil separation is fundamental to the operation of an oil-injected screw compressor. During compression, lubricant becomes entrained in the compressed-air stream. The separator element coalesces fine oil droplets so that the recovered lubricant can return to the compressor system rather than being discharged with the compressed air.
The 54509427 reference has broad documented application coverage. MANN-FILTER identifies it for several Ingersoll Rand ML, R, and SSR series machines, including ML 90 through ML 160, selected R 90 through R 160 configurations, and multiple SSR EP, HP, and XF models. This makes accurate machine identification important when selecting a replacement.
MANN-FILTER's current catalogue also provides a useful technical reference by mapping 54509427 to LE 38 022. The published dimensions for LE 38 022 are 375 mm outer diameter, 275 mm secondary diameter, and 432 mm height. These figures are useful for technical comparison, although the applicable compressor parts documentation should remain the final authority for fitment.
A properly functioning separator contributes to more than compressed-air cleanliness. Efficient separation reduces lubricant loss and helps maintain the intended oil balance within the compressor. Excessive oil carryover can increase lubricant consumption and may contaminate downstream piping, filtration, dryers, and production equipment.
The 47550996001 maintenance reference is therefore relevant to planned compressor service, while 54509427 provides the specific separator identification needed for procurement. Because maintenance-kit contents can vary by machine configuration, purchasing teams should verify the applicable bill of materials rather than relying solely on the kit number.
For maintenance engineers, the dedicated part number also improves service traceability. Matching the separator by OEM reference, compressor model, serial number, and separator-vessel configuration is safer than selecting an element only by approximate physical dimensions.
Before installation, the separator should be checked against the removed element and applicable service documentation. Correct sealing, installation orientation, tightening procedure, and maintenance interval should be followed to ensure reliable separation performance.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Maintenance Kit Number | 47550996001 |
| Maintenance Kit Type | 8,000-Hour Preventive Maintenance Kit |
| Maintenance Kit Application | New Cobra 90–160 / M90–160 |
| Component Number | 54509427 |
| Product Type | Air/Oil Separator Element |
| Primary Function | Compressed-air oil separation |
| Separation Principle | Coalescing oil-mist separation |
| Documented Applications | Ingersoll Rand ML, R, and selected SSR series |
| MANN-FILTER Cross-Reference | LE 38 022 |
| Outer Diameter | 375 mm, MANN-FILTER reference |
| Secondary Diameter | 275 mm, MANN-FILTER reference |
| Height | 432 mm, MANN-FILTER reference |
| Residual Oil Content | Application-specific; verify applicable specification |
| Pressure Differential | Application-specific |
| Operating Pressure | Application-specific |
| Operating Temperature | Application-specific |
| Service Interval | Application-specific; follow compressor maintenance schedule |
| Weight | Application-specific; verify supplied configuration |
| Installation | Follow applicable Ingersoll Rand service procedure |
| Compatibility | Verify compressor model, serial number, and separator-vessel configuration |
| Package Contents | Verify against the current 47550996001 bill of materials |
The dimensional values are published by MANN-FILTER for LE 38 022, the documented cross-reference for 54509427.
Recommended Companion Models
| Model | Product Name |
| 39911631 | Oil Filter Element |
| 24172215 | Air Filter Element |
| 39218193 | Motor Grease |
| 99289894 | Minimum Pressure Valve Service Kit |
These are related maintenance components for compatible Ingersoll Rand compressor configurations. They perform different functions and should not be considered automatically included with 47550996001 or interchangeable with 54509427.
Frequently Selected Alternatives
| Model | Product Name |
| LE 38 022 | MANN-FILTER Air/Oil Separator |
| 54509435 | Ingersoll Rand Air/Oil Separator Element |
| 54601513 | Ingersoll Rand Air/Oil Separator Element |
| 54509500 | Ingersoll Rand Air/Oil Separator Element |
