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Pro DRY S replacement with the correct engine and housing
The aFe 31-10144 replaces the original airbox filter in the specified applications with oil-free synthetic media. The current manufacturer names BMW525/528/530i E60/E612004–2010 2.5L/3.0L and Z4 E852006–2008 3.2L. Original individual525i/525xi/528i/528i xDrive/528xi/530i/530xi and Z4 M Coupe/M Roadster year bounds remain unchanged; M Coupe versus Roadster chassis details must be checked against actual factory housing. Exact per-part retailers positively identify the original2004 545i N62 4.4L V8 outside the six-cylinder primary heading. That single bounded row remains a source-qualified engine/housing hold, not presumed contamination, manufacturer all-V8 approval or authorization for other545i years. Retailer claims for other Z4 engines do not create new rows here without exact original-housing reconciliation. The exact primary overview says cotton gauze, while its oil-free Pro DRY S identity and exact retailer synthetic specification conflict with that wording. The current primary explicitly states three progressive layers and99.2-percent filtration efficiency; no supplied test protocol or engine-power guarantee is inferred.
Key Features
- Oil-free synthetic filtration media.
- Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media.
- Rounded open pleats provide usable filter area and dust-holding capacity.
- Full polyurethane perimeter frame and progressive bump seal.
- The current exact primary states99.2-percent filtration efficiency, without publishing its test protocol there. It supplies no numerical airflow-gain or horsepower result; efficiency is not a guaranteed engine-output improvement.
Fitment
| Detail | Value |
|---|---|
| Current primary family | 525/528/530i E60/E612004–2010 2.5L/3.0L;Z42006–2008 3.2L original housings |
| Original Z4 M rows | M Coupe and M Roadster2006–2008 retained with exact chassis/housing verification |
| 545i source hold | Original2004 N62 4.4L exact retailer positive; beyond primary six-cylinder heading, no wider-year V8 extension |
| Media specification | Three oil-free Pro DRY S layers; cotton-gauze overview conflicts with synthetic retailer/media identity |
| Efficiency | 99.2percent as stated on current exact primary; test conditions not supplied on that page |
31-10144: verify the exact engine, original element and housing. Model or trim names alone do not establish all-engine interchangeability.
Specifications
| Detail | Value |
|---|---|
| Manufacturer Part Number | 31-10144 |
| Media | Pro DRY S; oil-free synthetic media |
| Configuration | One OE-replacement air-filter element; original housing retained |
| Pleat description | Rounded open pleats; no verified numeric pleat depth on the exact current primary |
| Frame / seal | Polyurethane perimeter frame; progressive bump seal |
| Service | Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media. |
| Flow statement | The current exact primary states99.2-percent filtration efficiency, without publishing its test protocol there. It supplies no numerical airflow-gain or horsepower result; efficiency is not a guaranteed engine-output improvement. |
| Emissions | Exact manufacturer page states this filter does not require a CARB EO number; other modifications are not certified by that statement |
What's Included
- One Pro DRY S OE-replacement air-filter element.
- No complete airbox, intake tube, sensor, separate coupler kit or filter-service supplies are documented as included.
About aFe Power
aFe Power develops application-specific intake, filtration, exhaust, cooling, tuning, suspension, drivetrain, and truck-performance components supported by product testing and documented installation requirements.
Related Parts
- Browse aFe Power filter configurations; compare the exact original housing and engine.
- Manufacturer filter-media maintenance guidance; follow the oil-free Pro DRY S cleaning routine.
Frequently Asked Questions
What is the 31-10144?One Pro DRY S OE-replacement air-filter element for the verified housing and engine application described here; this is not a complete intake system.
Which application should I verify?The current manufacturer names BMW525/528/530i E60/E612004–2010 2.5L/3.0L and Z4 E852006–2008 3.2L. Original individual525i/525xi/528i/528i xDrive/528xi/530i/530xi and Z4 M Coupe/M Roadster year bounds remain unchanged; M Coupe versus Roadster chassis details must be checked against actual factory housing. Exact per-part retailers positively identify the original2004 545i N62 4.4L V8 outside the six-cylinder primary heading. That single bounded row remains a source-qualified engine/housing hold, not presumed contamination, manufacturer all-V8 approval or authorization for other545i years. Retailer claims for other Z4 engines do not create new rows here without exact original-housing reconciliation. The exact primary overview says cotton gauze, while its oil-free Pro DRY S identity and exact retailer synthetic specification conflict with that wording. The current primary explicitly states three progressive layers and99.2-percent filtration efficiency; no supplied test protocol or engine-power guarantee is inferred.
Is the Pro DRY S media oiled?Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media.
Does the flow percentage guarantee more engine power?The current exact primary states99.2-percent filtration efficiency, without publishing its test protocol there. It supplies no numerical airflow-gain or horsepower result; efficiency is not a guaranteed engine-output improvement.
How does this filter seal?Its progressive bump seal and full polyurethane perimeter frame conform to the original housing. The manufacturer says separate filter gaskets or sealants are not required; the existing housing must still close and secure correctly.
Are a hose coupler and cleaning kit supplied?The exact listing identifies an OE-replacement filter. A generic Coupler Included field does not establish a separate hose package; no airbox, tube, sensor, cleaner or oil bottle is documented as supplied.
Does the545i row prove all BMW V8 interchange?No. Exact retailers identify the original2004 N62 4.4L application, but the current manufacturer heading names six-cylinder families. Keep that bounded housing qualification and confirm the actual original element; do not extend it to other V8 models or years.
When should I clean it?Inspect according to actual dust exposure and restriction. Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media. Use low-pressure rinse from the clean side toward the dirty side, let the element dry naturally before reinstalling. Do not use heat, compressed air or any filter oil. Do not treat an older general-care mileage example as a guaranteed interval for every vehicle or environment.
Installation Instructions
- Read the exact manufacturer product information for 31-10144 and the original vehicle airbox service procedure.
- With the engine off and cool, compare the new filter and original element, including the sealing interface. Resolve an engine or housing mismatch before installation.
- Open the original housing according to its service procedure, remove the old element and keep debris out of the clean intake path. Clean the housing seat.
- Seat the polyurethane frame evenly without folding the bump seal or adding sealant. Close and secure the original housing and inspect all its attachments.
- Washable oil-free synthetic media. Use the specified aFe POWER CLEANER, rinse appropriately and dry fully; do not apply air-filter oil. The current exact manufacturer specifies three layers of oil-free synthetic media.
No vehicle-specific installation PDF or numeric airbox torque is linked on this exact manufacturer page. Follow the original housing service procedure and the correct oil-free Pro DRY S maintenance directions. Read the manufacturer media maintenance guidance.
31-10144: verify the original filter interface before operation.
California Proposition 65 Warning
- This product can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and reproductive harm. For more information go to www.P65Warnings.ca.gov.
- California Proposition 65 warning: this product can expose you to chemicals known to the State of California to cause cancer and reproductive harm.
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