Product
Ingersoll Rand 47701891001 Air Filter Element | Replaces 39903281 | 380mm OD for S90–S150, M185, RM185
Official upgrade air filter element for Ingersoll Rand compressors, replacing part 39903281 with full interchangeability. OD ≈380 mm, ID ≈199 mm, height ≈178 mm, 5–10 μm filtration at ≥98% efficiency. Fits SSR S90/S110/S150, M185, RM185i/RM185n.
- Export packaging & documentation support
- OEM / ODM customization available
- Sample and bulk order workflow
Product Overview
This air filter element is the official Ingersoll Rand upgrade part number 47701891001, which supersedes the older 39903281. Both part numbers share identical installation dimensions, filtration performance, and service life, making them fully interchangeable without any modification to the housing or mounting structure.
The element is constructed with imported wood pulp filter paper or glass fiber composite media (Ahlstrom grade), delivering high dust-holding capacity and low flow resistance. It filters particles in the 5–10 μm range with ≥98% efficiency for particles above 5 μm, protecting the compressor airend while keeping energy consumption in check.
Specifications
| Parameter | Value | Notes |
|---|---|---|
| Old Part Number | 39903281 | Superseded |
| New Part Number | 47701891001 | Official upgrade, direct interchange |
| Part Name | Air Filter Element | Dry pleated cartridge |
| Brand | Ingersoll Rand | — |
| Outer Diameter | ≈ 380 mm | Maximum body OD; manufacturing tolerance ±2 mm |
| Inner Diameter | ≈ 199 mm | Center bore, matches compressor intake |
| Height | ≈ 178 mm | Including top and bottom polyurethane end caps; some batches marked 180 mm |
| Filtration Rating | 5 ~ 10 μm | ≥98% efficiency for particles >5 μm |
| Filter Media | Imported wood pulp / glass fiber composite | Ahlstrom-grade; high dust capacity, low flow resistance |
| Weight | ≈ 1.75 kg | Net weight per element; minor batch variation possible |
| Quantity per Compressor | 1 EA | — |
| Recommended Replacement | 2,000 hours or 1 year, whichever comes first | — |
| Interchangeability | Fully interchangeable | Identical dimensions, filtration, and service life |
Dimension note: OD, ID, and height are reference measurements. Manufacturing tolerance is ±2 mm; some batches are marked 180 mm in height. Verify against the physical unit before installation.
Compatible Ingersoll Rand Models
This element fits six Ingersoll Rand oil-flooded rotary screw compressor models:
- SSR S Series: S90 (90 kW), S110 (110 kW), S150 (150 kW)
- SSR M Series: M185 (185 kW)
- RM Series: RM185i (185 kW, fixed speed), RM185n (185 kW, variable speed)
To confirm 100% compatibility, provide the complete compressor serial number and we will verify the match.
Installation & Maintenance
Replacement Interval
The manufacturer recommends replacement every 2,000 hours or 1 year, whichever comes first. In dusty environments (e.g., foundries, construction sites), inspect monthly and shorten the interval as needed.
Signs Replacement Is Due
- Intake restriction indicator enters the yellow zone and remains there after shutdown.
- Dust traces are visible on the clean side of the filter housing.
- Discharge volume drops continuously with no other fault identified.
Do Not Clean and Reuse
Dry pleated elements cannot be washed or blown clean — cleaning damages the pleat structure and reduces filtration efficiency. Replace with a new element.
Installation Steps
- Shut down the compressor, lock out/tag out, and allow the enclosure to cool.
- Open the intake-side enclosure panel and release the filter housing cover.
- Grip the end cap and remove the old element.
- Inspect the housing interior — dust on the clean side indicates a seal failure that must be corrected before installing a new element.
- Wipe the sealing surface, insert the new element (ID ≈199 mm aligned with the intake), and avoid over-tightening.
- Reinstall the housing cover and confirm the restriction indicator returns to the clean position.
- Restart the compressor and verify intake restriction has returned to normal.
Direct interchange: 47701891001 and 39903281 share identical installation dimensions. No housing changes or structural modifications are required.
FAQ
Q1. What is the new part number for 39903281?
47701891001 — the official Ingersoll Rand upgrade for the older 39903281.
Q2. Are 39903281 and 47701891001 interchangeable?
Yes. Installation dimensions, filtration performance, and service life are identical, allowing direct interchange.
Q3. What are the dimensions of 39903281?
OD ≈380 mm, ID ≈199 mm, height ≈178 mm (including polyurethane end caps). OD tolerance is ±2 mm.
Q4. What is the filtration rating?
5–10 μm, with ≥98% efficiency for particles above 5 μm.
Q5. What filter media is used?
Imported wood pulp / glass fiber composite (Ahlstrom-grade), offering high dust capacity and low flow resistance.
Q6. Which compressors does it fit?
Six models: S90, S110, S150 (SSR S Series), M185 (SSR M Series), and RM185i, RM185n (RM Series).
Q7. What is the difference between RM185i and RM185n?
“i” denotes fixed speed; “n” denotes variable speed. Both use the same air filter element.
Q8. How often should it be replaced?
Every 2,000 hours or 1 year, whichever comes first. Shorten the interval in dusty conditions.
Q9. How many elements per compressor?
One.
Q10. How do I know when to replace it?
When the intake restriction indicator turns yellow and stays yellow after shutdown.
Q11. Can 39903281 be washed and reused?
No. Dry pleated elements cannot be washed or blown clean; cleaning damages the pleats and reduces efficiency.
Q12. How can I confirm fitment?
Provide the complete compressor serial number for a precise compatibility check.
Request a Quotation
We support bulk orders, export documentation, and worldwide shipping. To receive a fast and accurate quote, please provide:
- Compressor model (e.g., S110, RM185n)
- Or the complete compressor serial number for 100% fitment verification
- Required quantity
We respond within business hours.