Introduction
The Ingersoll Rand 47545142001 39454558 Gear Casing Service Kit is a maintenance reference centered on the compressor gearcase and its motor-to-gearcase sealing interface. 47545142001 is identified as a gear casing service kit, while 39454558 is specified as a gasket between the motor and gearcase in applicable Ingersoll Rand compressor assemblies.
The connection between the motor and gearcase is a critical mechanical interface in a gear-driven rotary screw compressor. It must maintain accurate assembly alignment while also providing a dependable sealing boundary around the lubricated drive system. The gasket at this joint therefore has an important supporting role in overall compressor reliability.
For the New Cobra M90–160 and M90–160 VSD configurations, the published service-parts data places 39454558 directly within the 47545142001 gear casing service group. The same service group includes the shaft seal 89292445, motor sleeve 89292478, O-rings, and sealant, illustrating that gearcase service involves several interrelated sealing and mechanical components.
The 39454558 gasket is also documented separately as a motor-to-gearcase gasket for 400-frame motors. An Ingersoll Rand drive-train parts list identifies it as item 2, with a separate gasket reference, 35258573, specified for 360-frame motors. This distinction demonstrates why motor-frame and compressor configuration should be confirmed before selecting a replacement.
During service, the old gasket should be removed carefully and the mating surfaces cleaned thoroughly. Remaining gasket material, surface damage, oil contamination, or foreign particles can interfere with proper seating and may lead to leakage after reassembly.
A new gasket should be installed using the applicable Ingersoll Rand maintenance procedure. Fastener tightening sequence and torque requirements should be followed according to the equipment-specific service documentation so that the gasket is compressed evenly without distortion.
The condition of surrounding components should also be evaluated while the gearcase is accessible. Shaft seals, motor sleeves, O-rings, seal housings, and gearcase interfaces can all contribute to leakage or drive-train problems. Addressing related wear during planned service can reduce the likelihood of repeated disassembly.
The 39454558 reference is not simply a generic gasket number. In published Ingersoll Rand parts data, it is specifically described as a gasket between the motor and gearcase. This makes accurate identification particularly important where several gasket designs are used across different compressor frames.
For maintenance and purchasing teams, pairing the 47545142001 service-kit reference with the individual 39454558 component reference provides useful traceability. The complete compressor model, serial number, motor frame, and existing part number should be retained with the service record.
The gasket should also not be confused with the nearby seal-housing gasket 39454566. The drive-train parts list identifies 39454558 as the motor-to-gearcase gasket and 39454566 as the seal-housing gasket, confirming that these components serve different interfaces.
Exact gasket dimensions, material composition, kit package dimensions, and weight were not sufficiently verified from authoritative documentation. These values are therefore intentionally not estimated.
For industrial compressor operators, 47545142001 and 39454558 provide a practical reference for maintaining the gearcase and motor-to-gearcase sealing interface. Correct component identification and careful installation can help minimize lubricant leakage, support drive-train integrity, and improve the reliability of planned compressor maintenance.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Service Kit Reference | 47545142001 |
| Component Reference | 39454558 |
| 47545142001 Product Type | Gear Casing Service Kit |
| 39454558 Product Type | Motor-to-Gearcase Gasket |
| Primary System | Compressor gearcase / drive train |
| Primary Function | Gearcase servicing and motor-to-gearcase sealing |
| Documented Application | New Cobra M90–160 and M90–160 VSD |
| Additional Application Reference | 400-frame motor configurations |
| Related 360-Frame Gasket | 35258573 |
| Gasket Material | Verify current manufacturer specification |
| Gasket Dimensions | Application-specific; verify applicable parts documentation |
| Mating Surface Requirements | Clean, undamaged, and compliant with service procedure |
| Fastener Requirements | Follow compressor-specific torque and tightening sequence |
| Kit Contents | Verify current configuration-specific bill of materials |
| Kit Dimensions | Application-specific; verify applicable parts documentation |
| Weight | Packaging-specific; verify supplied product |
| Installation | Follow applicable Ingersoll Rand service documentation |
| Compatibility | Confirm compressor model, serial number, and motor frame before ordering |
Ingersoll Rand parts documentation identifies 39454558 as the motor-to-gearcase gasket for 400-frame motors, while the New Cobra service reference associates it with 47545142001.
Recommended Companion Models
| Model | Product Name |
| 89292445 | Shaft Seal |
| 89292478 | Motor Shaft Sleeve |
| 95023388 | O-Ring |
| 39253992 | Gearcase-to-Air-End O-Ring |
These references are listed as complementary gearcase service components for applicable Ingersoll Rand configurations. They address different sealing or mechanical interfaces and are not automatic substitutes for 39454558.
Frequently Selected Alternatives
| Model | Product Name |
| 35258573 | Motor-to-Gearcase Gasket – 360 Frame Motors |
| 39457411 | Motor-to-Gearcase Gasket |
| 39454566 | Seal Housing Gasket |
| 92876457 | Motor-to-Gearbox Gasket |
