Introduction
The Ingersoll Rand 47674733001 23497001 Preventive Maintenance Kit provides a practical reference for scheduled intake-air maintenance on compatible R90–110 compressor equipment. 47674733001 is cataloged as a 2,000-hour preventive maintenance kit, while 23497001 is identified as a pre-filter pad used in the compressor intake assembly.
In an industrial rotary screw compressor, maintaining clean intake air is an important part of protecting the compression system. Atmospheric air can contain dust, fibers, and other airborne particles, and these contaminants must be controlled before they enter sensitive downstream components. A pre-filter provides an additional layer of protection ahead of the primary air filter.
The 23497001 reference is clearly identified in Ingersoll Rand assembly documentation. The standard pre-filter drawing lists it as PAD, PRE-FILTER, with one pad installed in the intake assembly. This makes the part fundamentally different from the main cylindrical air-filter element used elsewhere in the compressor intake system.
The intake assembly drawing also shows the pre-filter pad working together with the intake door, grill, hinges, latch components, and retaining hardware. This arrangement allows the pre-filter to intercept larger contamination before air reaches the primary filtration stage.
The value of pre-filtration becomes particularly apparent in dusty or contaminated environments. Coarse particles can quickly load a primary filter if no suitable upstream protection is present. Maintaining the pre-filter therefore provides an additional method of controlling intake contamination and can support more stable operation of the primary air-filter system.
The 47674733001 reference adds a scheduled-maintenance framework to this filtration strategy. Published Ingersoll Rand parts data identifies 47674733001 as a 2,000-hour preventive maintenance kit, with 47674732001 separately identified as the 4,000-hour preventive maintenance kit. This distinction is useful for maintenance planners when aligning spare-parts purchasing with the compressor's service schedule.
During routine service, the pre-filter should not be evaluated in isolation. The intake door and grill should be checked for dust accumulation, damage, loose hardware, or conditions that might create a bypass path. A clean-looking pad cannot compensate for an improperly seated or damaged intake assembly.
Pre-filter condition can also influence primary-filter loading. When the upstream pad becomes heavily contaminated, airflow through the intake assembly can be affected. Conversely, a damaged or missing pad may allow excessive contamination to reach the main filter. Both conditions justify inspection as part of planned maintenance.
The 23497001 reference is also supported by current aftermarket and OEM-oriented parts listings, which consistently identify it as an Ingersoll Rand pre-filter pad. This consistency improves part-number traceability for maintenance and procurement teams.
Replacement should follow the equipment-specific service procedure. The pad should be correctly positioned within its intended frame or intake assembly, and adjacent components should be checked to make sure there is no path for air to bypass the filtration material.
The pre-filter is not a substitute for the primary air filter. A complete intake maintenance strategy normally addresses both stages, with the primary filter selected according to the compressor model and application. For example, published R90–110 service data lists 23429822 as a standard air-filter element alongside the preventive-maintenance program.
Purchasing records should distinguish the maintenance-kit reference from the individual pre-filter component. 47674733001 identifies a broader scheduled-service package, whereas 23497001 identifies one specific filtration component. This distinction becomes especially important when servicing different compressor sizes or filter-housing configurations.
The pre-filter should also not be substituted solely on the basis of apparent thickness or visual similarity. Airflow resistance, media construction, dimensions, retention method, and sealing arrangement can all affect the performance of the intake system.
Exact packaged contents of every 47674733001 revision, the material composition of 23497001, pad dimensions, package dimensions, and weights were not sufficiently verified from authoritative documentation. These values are therefore intentionally not estimated.
For industrial compressor operators and maintenance professionals, 47674733001 and 23497001 provide a useful combination for scheduled intake-air protection. Correct pre-filter identification, proper installation, and routine inspection of the complete intake assembly can help maintain cleaner compressor intake conditions and support reliable long-term operation.
Technical Specifications
| Specification | Details |
|---|---|
| Brand | Ingersoll Rand |
| Maintenance Kit Reference | 47674733001 |
| Component Reference | 23497001 |
| 47674733001 Product Type | 2,000-Hour Preventive Maintenance Kit |
| 23497001 Product Type | Pre-Filter Pad |
| Primary System | Compressor intake-air filtration |
| Primary Function | Coarse pre-filtration ahead of the primary air filter |
| Documented Application | R90–110 compressor intake assembly |
| Pre-Filter Assembly Position | Upstream of the primary air filter |
| Quantity in Published Assembly | 1 pad |
| Filter Media | Pre-filter pad; verify current manufacturer specification |
| Pad Dimensions | Application-specific; verify current parts documentation |
| Airflow Resistance | Application-specific; verify applicable specification |
| Housing Compatibility | Verify compressor-specific intake assembly |
| Maintenance Interval | 2,000-hour kit reference for 47674733001 |
| Kit Contents | Verify current configuration-specific bill of materials |
| Kit Dimensions | Application-specific; verify applicable documentation |
| Weight | Packaging-specific; verify supplied product |
| Installation | Follow applicable Ingersoll Rand service documentation |
| Compatibility | Confirm compressor model, serial number, and intake assembly before ordering |
The Ingersoll Rand pre-filter assembly drawing identifies 23497001 as the pre-filter pad with a quantity of one.
Recommended Companion Models
| Model | Product Name |
| 23429822 | Standard Air Filter Element |
| 47674732001 | 4,000-Hour Preventive Maintenance Kit |
| 23424922 | Coolant Oil Filter Element |
| 39218193 | Motor Grease |
These are complementary references within the broader R90–110 preventive-maintenance program. They serve different filtration or maintenance functions and are not direct substitutes for 23497001.
Frequently Selected Alternatives
| Model | Product Name |
| 23390131 | Standard Air Filter |
| 23415821 | High-Dust Air Filter |
| 23512866 | Panel Air Filter |
| 99331811 | Pre-Air Filter |


