2011 Acura RDX engine air filter: Sizes & Replacement Parts
Catalog-backed engine air filter part numbers for the 2011 Acura RDX 2.3L I4 turbo include WIX 49123 / Purolator A26312. Confirm the final part number before checkout.
Looking for the cabin / A/C air filter instead? 2011 Acura RDX cabin air filter →
Choose your engine size
The 2011 Acura RDX uses different engine air filter part numbers by engine. Select your engine, then use the part numbers in that panel.
2.3L I4 turbo
Main catalog answer: WIX 49123 / Purolator A26312
- Filter type
- Basic
- Sources
- WIX Filters, Purolator Now
The Direct Fit part is the primary catalog listing for this engine row. Purolator TA26312 is also listed by checked catalogs for this same engine row.
Links search this exact part number. Confirm 2011 Acura RDX and the 2.3L I4 turbo engine in the seller's vehicle selector before checkout.
Fitment scope and limits
This 2011 Acura RDX engine air filter page has one checked engine row. Confirm the same vehicle in the seller's selector before checkout.
The checked catalogs did not provide source-backed replacement interval for this exact record, so this page does not publish those fields.
Catalogs can list more than one part number for the same vehicle. Use this page to compare the listed numbers, then use the seller's vehicle selector before ordering.
Source notes
Listed in 2 catalogs. These part numbers come from filter manufacturer catalogs. Use the source trail below to see which catalog supported this page.
| Source | Role | Supports | Checked |
|---|---|---|---|
| Purolator Now | Primary | Filter for 2.3L I4 turbo | 2026-06-25 |
| WIX Filters | Corroboration | Filter for 2.3L I4 turbo | 2026-06-25 |
Checked catalogs: Purolator Now, WIX Filters. Replacement interval is not listed unless a source provides it for this exact vehicle and engine row.
2011 Acura RDX maintenance checklist
One part checked. Look up the rest while you're here.
- Cabin air filter 2011 Acura RDX cabin filter part numbers
- Engine air filter WIX 49123 / Purolator A26312 Checked
- Wiper blade size 2011 Acura RDX driver & passenger blade sizes
Questions this page answers
What engine air filter fits the 2011 Acura RDX 2.3L I4 turbo?
Checked catalogs list WIX 49123, Purolator A26312, Purolator TA26312 for the 2011 Acura RDX 2.3L I4 turbo. The primary listing is WIX 49123 / Purolator A26312, with Purolator TA26312 also listed. Confirm this part number in the seller's vehicle selector before ordering.
Is the 2011 Acura RDX engine air filter the same across all engine options?
This 2011 Acura RDX engine air filter page has one checked engine row. Confirm the same vehicle in the seller's selector before checkout.
Does this page confirm a replacement interval?
The checked catalogs did not provide source-backed replacement interval for this exact record, so this page does not publish those fields.
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