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, and RM185n.
- Export packaging & documentation support
- OEM / ODM customization available
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Product Overview
Part 39903281 is the air filter element used on Ingersoll Rand SSR S, M, and RM series screw compressors. It has been officially superseded by part 47701891001. Both parts share identical mounting dimensions, filtration performance, and service life, allowing direct interchangeability without any modification to the installation.
The element uses imported wood pulp filter paper / glass fiber composite media (Ahlstrom grade), delivering 5–10 μm filtration with ≥98% efficiency for particles above 5 μm. It combines high dust holding capacity with low flow resistance — effectively protecting the compressor rotor while avoiding excessive energy consumption.
Dimensions: OD ≈380 mm, ID ≈199 mm, height ≈178 mm (including polyurethane end caps). Net weight ≈1.75 kg. One element per compressor. Recommended replacement: 2000 hours or 1 year, whichever comes first.
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| Old Part Number | 39903281 | Superseded |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 | — |
| Unit | EA | — |
| Quantity per Compressor | 1 | — |
| Recommended Replacement | 2000 hours or 1 year | Whichever comes first |
| Outer Diameter | ≈380 mm | ±2 mm manufacturing tolerance; some batches marked 180 mm |
| Inner Diameter | ≈199 mm | Matches compressor intake |
| Height | ≈178 mm | Including end caps; some batches marked 180 mm |
| Filtration Efficiency | 5–10 μm | ≥98% for particles >5 μm |
| Filter Media | Imported wood pulp / glass fiber composite | Ahlstrom grade, high dust holding, low flow resistance |
| Weight | ≈1.75 kg | Net weight per element |
Compatible Ingersoll Rand Models
This air filter element fits the following six 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)
For 100% accurate matching, provide the complete compressor serial number and we will verify compatibility.
Pricing & Lead Time
| Item | Old 39903281 | New 47701891001 |
|---|---|---|
| Status | Superseded | Active |
| Reference Price | ¥1,069 | ¥1,240 |
| Quoted Price | ¥1,450 | ¥1,419 |
| Lead Time | — | 45 days |
| Unit | EA | EA |
Bulk inquiries welcome. Global shipping available.
Installation & Maintenance
Replacement Interval
Factory recommendation: 2000 hours or 1 year, whichever comes first. In dusty environments (e.g., foundries, construction sites), inspect monthly.
Signs Replacement Is Needed
- Inlet restriction indicator enters the yellow zone and remains there after shutdown.
- Dust traces visible on the clean side of the filter housing.
- Compressor output continues to drop after other causes are ruled out.
Do Not Clean and Reuse
Dry pleated elements cannot be washed or blown with air — cleaning damages the pleat structure and reduces filtration efficiency. Replace with a new element.
Installation Steps
- Shut down and lock out the compressor; 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 the new element.
- Wipe the sealing surface, insert the new element (ID ≈199 mm aligns with intake), and avoid over-tightening.
- Reinstall the housing cover and confirm the restriction indicator returns to the clean position.
- Restart the compressor and verify inlet restriction is normal.
Direct interchange: 47701891001 and 39903281 share identical mounting dimensions. No housing change or structural modification is required.
FAQ
Q1. What is the new part number for 39903281?
47701891001. It is the official Ingersoll Rand upgrade for the older 39903281.
Q2. Can 39903281 and 47701891001 be interchanged?
Yes. Mounting dimensions, filtration performance, and service life are identical.
Q3. What are the dimensions of 39903281?
OD ≈380 mm, ID ≈199 mm, height ≈178 mm (including end caps). OD tolerance ±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), high dust holding, low flow resistance.
Q6. Which compressors does it fit?
Six models: SSR S90, S110, S150; M185; RM185i; RM185n.
Q7. What is the difference between RM185i and RM185n?
i = fixed speed, n = variable speed. Both use the same air filter.
Q8. How often should it be replaced?
Factory recommendation: 2000 hours or 1 year, whichever comes first. Shorten in dusty conditions.
Q9. How many elements per compressor?
One.
Q10. How do I know when to replace?
When the inlet restriction indicator turns yellow and remains yellow after shutdown.
Q11. Can 39903281 be cleaned and reused?
No. Dry pleated elements cannot be washed or air-blown.
Q12. How can I confirm fitment?
Provide the complete compressor serial number and we will perform a precise compatibility check.
Request a Quote
We support bulk orders, export documentation, and global shipping. To receive a fast, accurate quotation, please provide:
- Compressor model (e.g., S110, RM185n) or complete serial number for 100% verification
- Required quantity
We respond during business hours.