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Pro DRY S replacement with the correct engine and housing
The aFe 31-10208 replaces the original airbox filter in the specified applications with oil-free synthetic media. The exact current manufacturer identifies Toyota 4Runner 2010β2024 and FJ Cruiser 2010β2014 with the 4.0L V6, plus Lexus GX460 2010β2023 with the 4.6L V8. Exact per-part retailer tables support restoring the individual later bounds: GX460 Base/Premium through 2023 and Luxury 2014β2023; 4Runner Limited/SR5 through 2024, SR5 Premium 2018β2024, TRD Pro 2015β2024 and the separate Trail 2021β2022 range. The earlier Trail 2010β2016 range stays separate, leaving the real gap intact. Missing named rows are GX460 Black Line Edition 2023, and 4Runner 40th Anniversary Edition 2023, Nightshade/Venture 2020β2021, TRD Off-Road 2017β2024, TRD Off-Road Premium 2018β2024 and TRD Sport 2022β2024. These are exact-part retailer trims within the manufacturer engine/model bounds. They do not approve GX550, the 2025-new-generation 4Runner, hybrid engines or every international FJ Cruiser year. Retailer 84-percent flow/polycotton/warranty wording and another retailer California restriction differ from the current exact primary three-synthetic-layer/no-EO-required description; no revision or regulatory waiver is invented.
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 manufacturer does not publish a numerical flow-gain or efficiency result for this dry panel. A retailer 84-percent claim, another media option or a general horsepower promise is not substituted as a verified current manufacturer test.
Fitment
| Detail | Value |
|---|---|
| Toyota 4Runner 4.0L V6 | Manufacturer through 2024; exact individual named bounds restored, not every future generation |
| Trail gap | 2010β2016 and 2021β2022 retained separately; no 2017β2020 Trail inference |
| Restored 4Runner trims | 40th Anniversary 2023; Nightshade/Venture 2020β2021; TRD Off-Road 2017β2024; Premium 2018β2024; TRD Sport 2022β2024 |
| Lexus GX460 4.6L V8 | Base/Premium 2010β2023; Luxury 2014β2023; Black Line Edition 2023 only in the exact table |
| Toyota FJ Cruiser | Original US 2010β2014 V6 range retained; no later international extension |
31-10208: 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 | 31-10208 |
| 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 manufacturer does not publish a numerical flow-gain or efficiency result for this dry panel. A retailer 84-percent claim, another media option or a general horsepower promise is not substituted as a verified current manufacturer test. |
| 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 31-10208?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 exact current manufacturer identifies Toyota 4Runner 2010β2024 and FJ Cruiser 2010β2014 with the 4.0L V6, plus Lexus GX460 2010β2023 with the 4.6L V8. Exact per-part retailer tables support restoring the individual later bounds: GX460 Base/Premium through 2023 and Luxury 2014β2023; 4Runner Limited/SR5 through 2024, SR5 Premium 2018β2024, TRD Pro 2015β2024 and the separate Trail 2021β2022 range. The earlier Trail 2010β2016 range stays separate, leaving the real gap intact. Missing named rows are GX460 Black Line Edition 2023, and 4Runner 40th Anniversary Edition 2023, Nightshade/Venture 2020β2021, TRD Off-Road 2017β2024, TRD Off-Road Premium 2018β2024 and TRD Sport 2022β2024. These are exact-part retailer trims within the manufacturer engine/model bounds. They do not approve GX550, the 2025-new-generation 4Runner, hybrid engines or every international FJ Cruiser year. Retailer 84-percent flow/polycotton/warranty wording and another retailer California restriction differ from the current exact primary three-synthetic-layer/no-EO-required description; no revision or regulatory waiver is invented.
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 manufacturer does not publish a numerical flow-gain or efficiency result for this dry panel. A retailer 84-percent claim, another media option or a general horsepower promise is not substituted as a verified current manufacturer test.
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.
Are all Trail years or later GX/4Runner generations covered?No. Trail has separate supported ranges with a gap. Match the exact manufacturer engine/model endpoint and named trim: no GX550, newer 4Runner turbo/hybrid or international FJ Cruiser extension is inferred.
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 31-10208 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.
31-10208: 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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