Ingersoll Rand 47701889001 Air Filter Element | Replaces 39708466 | 37–160 kW OEM

Product Overview

The 47701889001 is the inlet air filter element for Ingersoll Rand oil-lubricated screw air compressors. Its previous factory part number is 39708466, now marked as discontinued in the Ingersoll Rand spare parts system and superseded by this 11-digit number. Old packaging and legacy bills of materials may still show 39708466 — both numbers identify the same filter element.

This element sits inside the intake filter assembly, upstream of the airend inlet. It is the first filtration stage on the intake path: dust, grit and fibres are captured before they reach the rotors. Its condition directly affects how long the downstream oil filter, oil separator element and lubricant will last.

Coverage is wider than a typical air filter. One element fits five screw compressor platforms from 37 kW to 160 kW and 45 machine models: ML/MM/MH/MJ 37–75 kW, XF/EP/HP/XP 50–100 kW, SM/SL/SH series, and the two-stage M75-2S through M160-2S. Two further elements released in the same changeover — 47701890001 (previous PN 39903265) and 47701891001 (previous PN 39903281) — share the same description but serve different power classes and are not interchangeable.

Core Specifications

• Part number: 47701889001
• Previous factory part number: 39708466
• Description: Air Filter Element
• Brand: Ingersoll Rand
• Power coverage: 37–160 kW
• Filtration rating: 5–10 μm
• Filtration efficiency: ≥98% for particles ≥5 μm
• Dimensions: approx. 278–280 mm OD, approx. 156 mm ID, approx. 127–129 mm overall height
• Recommended replacement interval: 2,000 hours or 3 months, whichever comes first

Basic Parameters

• Part Number: 47701889001
• Previous PN: 39708466
• Brand: Ingersoll Rand
• Component: Air Filter Element
• Category: Intake filtration (air filter)
• Applicable platforms: ML/MM/MH/MJ series, XF/EP/HP/XP series, SM/SL/SH series, L/H/HH series, M series two-stage models
• Power coverage: 37–160 kW
• Installation position: inside the intake filter assembly, upstream of the airend inlet
• Reference net weight: approx. 1.25 kg (actual weight subject to the delivered part)
• Replacement interval: 2,000 hours or 3 months, whichever comes first

How to Confirm Fitment

Some machines carry both a primary and a safety element, with different positions and part numbers. Before ordering, verify three points: (1) the part number stamped on the old element's end cap or frame matches this number or the previous number 39708466; (2) the machine nameplate model appears in the model list below; (3) the old element's installation position and quantity per machine.

This element shares its description with 47701890001 and 47701891001, but each belongs to a different power class. Always verify by part number — never order on a similar description or a similar machine rating.

Technical Parameters

1. Filtration Performance

• Filtration rating: 5–10 μm
• Filtration efficiency: ≥98% for particles ≥5 μm
• Filter class: characterised per ISO 5011 by efficiency, restriction and dust holding capacity; ventilation and air-conditioning classes such as G4/F5/F7 do not apply
• Dust holding capacity: directly related to on-site dust concentration; there is no single nominal figure — the intake differential pressure gauge is the reference

Filtration rating and dust holding capacity must be read together. An element with a fine rating but limited dust space builds restriction quickly and needs frequent replacement, raising total cost of ownership. The dimensions and pleat geometry of this element are designed for continuous duty on 37–160 kW machines, retaining sufficient dust storage at a 5–10 μm rating.

2. Flow and Restriction

• Rated air flow: must not be below the machine's rated intake volume; this element covers 37–160 kW machines with intake volumes of roughly 6–27 m³/min, to be confirmed against the nameplate FAD with corrections for intake temperature and altitude
• Initial pressure drop: approx. 0.3–0.5 kPa with a clean new element
• Operating differential range: rises progressively with dust loading, typically approx. 0.5–1.5 kPa
• Alarm / final restriction: replacement threshold commonly approx. 1.5–2.5 kPa; the intake vacuum or differential pressure gauge reading is the final reference
• Restriction vs. energy: each 1 kPa increase in intake restriction raises the compression ratio by about 1% and machine energy consumption by about 1.0%

Restriction-to-energy relationship (theoretical, at 0.85 MPa discharge gauge pressure):

• 0 kPa (new element): compression ratio 9.39, baseline energy
• 0.5 kPa: ratio 9.44, +0.5% energy
• 1.0 kPa: ratio 9.49, +1.0% energy
• 1.5 kPa: ratio 9.53, +1.5% energy
• 2.0 kPa: ratio 9.58, +2.0% energy
• 2.5 kPa: ratio 9.63, +2.5% energy

From installation to the replacement threshold, intake restriction rises by more than 2 kPa and machine energy consumption increases by roughly 2%. ML/MM/MH and M-2S machines often run continuously, so this energy gap usually exceeds the price of the element itself — running on restriction rather than the calendar is not economical.

3. Dimensions and Installation

• Outer diameter: approx. 278–280 mm
• Inner diameter: approx. 156 mm
• Overall height: approx. 127–129 mm including end caps
• Effective filtration area: depends on pleat count and pleat depth; confirm by measuring the old element
• Pleat count / spacing: varies with production batch and media configuration; confirm against the old part
• Mounting interface: cylindrical drop-in type, located and compressed by the end cap inside the intake filter assembly
• Sealing: face seal, with the sealing body either integrally moulded or separately fitted to the end cap

Recommended measurements before ordering a replacement (measure the old element to verify supply):

• Outer diameter: outer edge of the filter media
• Inner diameter: centre passage diameter
• Overall height: including end caps
• Sealing face position and type: axial or radial, plus seal cross-section
• Mounting interface: clamp, bolt holes or quick-fit design and dimensions

Outer diameter, inner diameter, overall height and seal type determine whether the element seats correctly and whether bypass occurs. The dimensions on this page are for preliminary comparison; please confirm against the old part before placing a formal order.

4. Material Construction

• Filter media: cellulose (wood pulp fibre) filter paper, pleated construction; depth filtration captures particles layer by layer
• Media basis weight: approx. 130 g/m²; basis weight governs burst strength and dust storage volume
• Inner and outer support: galvanised steel perforated cages on both sides, preventing media collapse under negative pressure
• End caps: metal or polyurethane end caps, bonded to the media and carrying the seal
• Seal: nitrile rubber or polyurethane sealing body, preventing bypass between element and assembly
• Bonding: polyurethane adhesive fixing and sealing media, end caps and cages

5. Operating Conditions

• Operating temperature: -10 °C to +80 °C
• Relative humidity: ≤90% RH, non-condensing
• Burst / collapse resistance: standard design withstands a differential pressure across the media of at least 5 kPa without deformation
• Special function: wide power-class intake filtration; in heavy dust environments a pre-filter layer can be fitted to extend primary element life

Where machines run continuously in high humidity, heavy dust or oil-mist environments (textiles, foundries, food processing, cement), media strength drops after moisture absorption and oil mist forms mud on the media surface. Both conditions shorten actual service life and require shorter inspection intervals.

6. Service Life and Maintenance

• Service life: 2,000 hours or 3 months, whichever comes first
• High-dust environments: reduce hours accordingly (for example to about 1,500 hours) and bring the calendar limit forward
• Storage shelf life: use within 24 months; store in a dry, ventilated, shaded place, protected from moisture and compression
• Replacement criteria: intake differential pressure gauge reading over the limit, or media damage, debonding or a flattened sealing face

The two limits — 2,000 hours and 3 months — apply simultaneously, whichever comes first. The calendar limit exists because media absorbs moisture and ages over time; machines on standby or intermittent duty still need scheduled replacement even if running hours have not been reached.

7. Standards

• ISO 5011: test method for intake filter efficiency and dust holding capacity; the basis for performance characterisation of this type of air filter element
• GB/T 14295: national air filter standard, commonly cited in domestic procurement and acceptance
• ISO 8573-1: compressed air quality classes, used to describe the machine's overall air supply quality
• Note: the ISO 2941 / 2942 / 2943 / 3723 / 3724 series commonly seen in replacement-part documentation applies to hydraulic filter elements, ISO 16889 multi-pass testing also addresses liquid filtration, and EN 779 with its G4–F9 classes belongs to ventilation and air-conditioning filters. None of these three systems applies to compressor intake filter elements and should not be used as performance evidence for air filters.

Standard Installation and Maintenance Steps

1. Confirm machine status and spare part. Check the machine nameplate model and power, and confirm the new element matches the old part number (if the old part is stamped 39708466, it is the same element as this number). Prepare the new element, a lint-free cloth and the necessary tools.
2. Shut down, depressurise, isolate. Follow the shutdown procedure and allow the machine to fully depressurise. Isolate the main power supply and apply lockout/tagout. This step is mandatory.
3. Verify the old element before starting work. Before opening the intake filter assembly, read the part number stamped on the old element's end cap and note its installation position. This element covers five platforms and 45 models from 37–160 kW, and some machines use both a primary and a safety element — this step is the key mistake-proofing check.
4. Remove and inspect the old element. Lift the old element out vertically and examine dust distribution and media condition. Criteria: replace immediately if the media is torn, punctured, debonded from the end cap or the sealing face is flattened, even if the interval has not been reached. Black oily sludge on the outer surface indicates abnormal oil mist in the intake air and requires checking the upstream environment.
5. Clean the assembly interior. Wipe the inner walls and base with a lint-free cloth. Do not blow compressed air into the assembly — this drives dust into the intake duct. Criteria: no loose dust on the inner walls, sealing faces flat and free of debris.
6. Fit the new element. Install in the same orientation and position as the old element, observing seal face direction and compression method. Criteria: no movement once seated, seal face evenly compressed around its circumference.
7. Refit and confirm sealing. Replace the cover or clamp and tighten evenly as specified. Check that the intake vacuum gauge sensing line is clear — a blocked line gives a falsely clean reading and is a common source of misjudgement.
8. Test run and record. Reset the service timer, start the machine unloaded and observe the intake vacuum gauge reading and running sound. Criteria: gauge steady within the machine's permitted range, no abnormal whistling (whistling usually indicates seal bypass). Record the running hours at replacement as the start of the next interval.

FAQ

Q1: Are 47701889001 and 39708466 the same part?

Yes. 39708466 is the previous factory number for this part. Ingersoll Rand migrated a group of M series air filters from legacy numbers to 11-digit numbers, and 39708466 maps to 47701889001. The old number is marked as discontinued in the current spare parts system. Legacy drawings and bills of materials may still show 39708466 — the two numbers identify the same element.

Q2: Can 47701889001, 47701890001 and 47701891001 be used interchangeably?

No. All three belong to the same changeover group and share the same description, but each serves a different power class intake configuration. This element covers the 37–160 kW M series and SM/SL/SH platforms, while the other two serve higher power classes. Verify against the part number stamped on the old part, not a similar description.

Q3: Which machine models does this element fit?

Coverage is wider than a typical air filter; models are grouped by platform in the model list below. Typical examples include ML/MM/MH 37–75, XF/EP/HP/XP 50–100, SM/SL/SH series, and the two-stage M75-2S through M160-2S. If you are unsure, provide the machine nameplate model and a photo of the old part and we will verify by part number.

Q4: Why can one element cover such a wide power range?

Fitment depends on the intake assembly interface and the machine's restriction at rated intake volume, not on power alone. The intake assembly interface on this platform is common across 45 models from 37–160 kW, so one element serves three power classes. Higher power machines may use more than one element depending on configuration — confirm the quantity per machine before ordering.

Q5: What are the dimensions?

Approx. 278–280 mm outer diameter, approx. 156 mm inner diameter, approx. 127–129 mm overall height, reference net weight approx. 1.25 kg. Dimensions vary slightly with production batch and media configuration; measure the old part before ordering, or provide a photo of the old part and the machine nameplate for verification by part number.

Q6: What is the replacement interval?

The standard interval is 2,000 hours or 3 months, whichever comes first. In high-dust environments (cement, quarrying, mining, metalworking) reduce the hours to about 1,500. The intake differential pressure gauge is the final reference — replace when the reading exceeds the limit, regardless of running hours.

Q7: What happens when intake restriction rises?

First, energy consumption increases: each 1 kPa of added intake restriction raises the compression ratio by about 1% and machine energy consumption by about 1%. Second, intake volume falls, reducing machine discharge volume. Running past the replacement threshold saves less on the element than it adds in electricity — particularly on continuously running machines.

Q8: Can alternative parts be used?

Yes, but three points must be verified: filtration rating, end cap sealing type and dimensions. An alternative whose sealing type differs from the original will allow bypass, sending unfiltered air into the airend and accelerating rotor and bearing wear. When sourcing alternatives, provide a photo of the old part and this part number.

Q9: What if there is abnormal whistling after installation?

Whistling usually indicates seal bypass — the element is not fully seated, the sealing face is deformed, or the seal is missing. Stop the machine and recheck: element seating, and whether the sealing face is flattened or rolled. Also check the intake vacuum gauge sensing line for blockage to avoid misdiagnosis.

Q10: How do I replace elements on a two-stage intake?

If the intake assembly is two-stage (primary plus safety element), the two elements have different part numbers and positions and are not interchangeable. Replace outside-in and verify each element against the ordered part number. The safety element is a backstop if the primary fails and should not be left in service indefinitely because it looks clean.

Q11: What are the storage requirements?

Store in a dry, ventilated, shaded place, protected from moisture, rain and compression by heavy objects. Moisture reduces media strength, and compression deforms the sealing fit. Use within 24 months.

Compatible Machine Models

This element covers five Ingersoll Rand screw compressor platforms from 37–160 kW and 45 models, grouped below by platform and power class.

• ML / MM / MH / MJ series, 37–75 kW: ML37, MM37, MH37, ML45, MM45, MH45, ML55, MM55, MH55, MJ55, ML75, MM75, MH75, MJ75
• XF / EP / HP / XP series, 50–100 kW: XFE50, EPE50, HPE50, XF60, EP60, HP60, XF75, EP75, HP75, XP75, XF100, EP100, HP100, XP100
• SM / SL / SH series (50 Hz), 37–75 kW: SM37, SL37, SM45, SL45, SH55, SH75
• L / H / HH series (60 Hz), 50–100 kW: L50, L60, H50, H60, HH75, HH100
• M series two-stage compressors, 75–160 kW: M75-2S, M90-2S, M110-2S, M132-2S, M160-2S

• Machine type: oil-lubricated screw air compressor
• Power coverage: 37–160 kW
• Quantity per machine: according to the intake assembly configuration — some models use one element, others two; refer to the machine parts drawing
• Confirmation method: verify both the old part number and the machine nameplate model
• Typical applications: manufacturing, textiles, chemicals, building materials, pneumatic conveying and other continuous air demand sites

Adjacent platforms for reference (to avoid mis-purchase; the following are different part numbers and are not interchangeable with this element):

• ML/MM/MH/MU 90–160, 90–160 kW: 39903291 — higher power platform, different part number
• 125S / 150S / 175S / 200S, M350-3S, 90–160 kW: 39903281 — higher power platform, different part number
• M250 / ML250, approx. 40 m³/min: 39903265 / 42852129 — larger machine platform, not interchangeable
• Other two elements in the same changeover group: 47701890001, 47701891001 — same description, different power class, not interchangeable

Why selection must be by part number, not machine model: this element covers five platforms across a wide 37–160 kW range, and different production batches and intake assembly configurations can exist within the same power class. Use the part number stamped on the old element as the primary reference, the machine nameplate as the secondary reference, and the installation position as the third.

Three-Step Verification

1. Read the part number stamped on the old element's end cap or frame and compare it with this number or the previous number (the previous number identifies the same element; see the Basic Parameters section).
2. Read the machine nameplate model and confirm it appears in the model list above.
3. Confirm the old element's installation position (single-stage or two-stage, primary or safety) and quantity per machine.

If the three steps are still inconclusive, provide a photo of the machine nameplate, a photo of the old element including the stamped part number, and a note on installation position. We will verify by part number before confirming.

Related Parts

Components sharing the same machine models and maintenance cycle:

• Oil filter element, 39911631: removes wear debris and sludge from lubricant, protecting rotors and bearings. Inspect alongside the air filter and replace per the machine manual.
• Oil filter assembly, 39259668: housing assembly carrying the oil filter element. Check sealing faces and mounting seat for leaks.
• Oil separator element, 54601513: separates oil mist from compressed air and returns oil, controlling discharge oil carryover. Check the oil return line for blockage at replacement.
• Lubricant (Ultra Coolant), 38459582: standard Ingersoll Rand screw compressor coolant, providing lubrication and sealing. Test oil condition as specified; avoid mixing with other brands.
• Air filter housing, 39911458: housing assembly that holds and locates the intake element. Check clamps, sealing faces and outlet end for deformation or corrosion.
• Air filter housing cover, 39911359: closes the intake housing and compresses the element face. Check sealing face flatness and that all fasteners are present.
• Safety element (on two-stage intakes): backstop if the primary element fails, preventing unfiltered air from entering the airend. Inspect alongside the primary element; do not leave it in service indefinitely because it looks clean.
• Intake differential pressure gauge / vacuum gauge: shows intake restriction and is the final reference for the replacement interval. Check the sensing line regularly for blockage, which gives a falsely clean reading.

Recommended group replacement: the air filter, oil filter element and oil separator element share the 2,000-hour interval. Replacing them together avoids staggered maintenance cycles. In heavy dust sites, fit a high-dust pre-filter layer first — the pre-filter costs far less than the primary element and is quicker to change.

Where a specific part number is required, items marked without a number above should be taken from the machine's parts manual. This element covers five platforms, so related part numbers must match the specific machine model and should not be carried across platforms.