Engine air filters typically cost about $15-$40 and cabin air filters about $15-$60, with OEM parts often at the higher end. Labor, if you have a shop install it, adds to the total.
The Acura MDX uses two main types of filters: an engine air filter that protects the intake and engine, and a cabin air filter that cleans the air inside the vehicle. Prices vary by whether you choose factory OEM parts or aftermarket equivalents, by the model year, and by where you purchase them. The following guide outlines current price ranges, where to buy, and installation considerations to help you budget.
Two main MDX air filters: Engine vs Cabin
Most MDX owners will replace either or both filters during routine maintenance. The engine air filter sits in the intake tract and keeps dust and debris from entering the engine. The cabin air filter cleans air entering the passenger compartment and may be a simple disposable filter or an activated charcoal version for odor control.
Engine air filter
Engine air filters typically cost less when purchased aftermarket, with OEM prices generally higher. For most MDX models, you can expect roughly $15-$40 for OEM parts or about $8-$24 for aftermarket equivalents, depending on the supplier and the filter standard (standard vs. high-flow). Availability is usually good at auto parts stores and online retailers.
Cabin air filter
Cabin filters often carry a higher price, especially activated charcoal versions. OEM cabin filters generally range from about $25-$60, while aftermarket options commonly range from $10-$40. Premium or dual-action filters with extra odor-reduction features can reach the upper end.
Current price landscape
Here is a snapshot of typical price ranges across common sources for MDX filters. Prices vary by part number and generation, and could change with promotions or bundles.
- Engine air filter (OEM): $15-$40
- Engine air filter (aftermarket): $8-$24
- Cabin air filter (OEM): $25-$60
- Cabin air filter (aftermarket): $10-$40
Prices reflect common online retailers and brick-and-mortar stores as of 2024-2025; actual prices may vary by region and supply. Always verify compatibility with your MDX’s model year and trim.
Where to buy and installation considerations
Options range from dealership parts counters to independent auto parts stores and online marketplaces. Consider compatibility, return policies, and whether you’ll install the filters yourself or have a professional handle it. The following is a quick guide to typical sources.
- Dealership/authorized Acura parts department: typically higher price but guaranteed compatibility and expertise
- Auto parts stores (AutoZone, Advance Auto Parts, O'Reilly, NAPA): broad selection, OEM-equivalent and aftermarket options
- Online retailers (Amazon, RockAuto, etc.): often the lowest prices and wide availability; check part numbers and shipping
- DIY or local independent shops: convenient for bundled service and installation if you want a professional to install and inspect the intake or HVAC system
When shopping, aim to match the exact part number for your MDX year and engine type (e.g., engine filter part number that fits 3.5L MDX if applicable) to avoid fitment issues.
Maintenance tips and replacement intervals
Regular replacement intervals help maintain engine performance and cabin air quality. Actual intervals depend on driving conditions and usage.
Recommended replacement intervals
Engine air filter: typically 15,000–30,000 miles under normal driving, more often in dusty conditions. Cabin air filter: typically 12,000–15,000 miles or at least once a year; if you notice reduced airflow or odors, replace sooner.
Signs you need to replace
Engine: decreased acceleration, rough idle, reduced fuel efficiency, or check engine light. Cabin: reduced airflow from vents, unusual odors, or increased allergy symptoms.
Conclusion
Air filter prices for an Acura MDX vary by filter type, part quality, and where you buy them. Expect engine filters around $8–$40 and cabin filters around $10–$60, with labor if applicable. Compare OEM versus aftermarket options and verify part numbers to ensure proper fitment across model years.
Summary
In short, the cost of an MDX air filter depends on whether you need an engine or cabin filter and whether you choose OEM or aftermarket parts. Package together with potential installation costs, and you have a clear view of the total expense. Always confirm compatibility for your specific MDX year and trim when shopping.