2019–2024 Subaru Ascent
By Tom Becker ✓ Certified Mechanic · Published Sep 21, 2026 · Updated Oct 22, 2026
Save $85 by doing it yourself! Shop cost: $100
Quick answer: Replace Cabin Air Filter on a 2019–2024 Subaru Ascent is rated Easy and takes about 10–15 minutes. No tools are required for this job, and parts cost about $15. This guide walks you through the full job step by step, including the mistakes to avoid.
| Part Name | Part Number | Price | Buy |
|---|---|---|---|
| Subaru OEM Cabin Air Filter Optional | 72880FL00A | $20.00 | |
| Aftermarket Cabin Air Filter | CF12436 | $15.00 | |
| Subaru Cabin Air Filter (Charcoal Activated) Optional | — | $25.00 |
About prices: shown prices are typical retail averages and change frequently; cheaper alternatives may be available. Confirm the current price before buying.
💡 Pro tip: Order all parts at once to save on shipping
Follow these steps carefully
Open the passenger glove box and empty it completely — every 2019–2024 Ascent keeps its cabin filter directly behind the glove box. The box must drop fully.
Press both sides of the glove box inward to release the stop tabs, then swing it down on its lower hinges. There's no damper arm to unhook on the Ascent — one of Subaru's simpler filter jobs.
I know the Ascent is the rare Subaru with no damper arm to fight — enjoy it. Just press the sides in and let the box drop; overthinking this one is how people snap the stop tabs.
Look into the cavity behind the dropped glove box for the rectangular filter housing with its clip-on cover. Shine a light in — the cover sits roughly center behind the opening, with its retaining tabs on the sides.
Squeeze the cover's side tabs and pull it toward you, then slide the old filter straight out. Note the airflow arrow on the old filter's frame — that's your installation reference.
Wipe or vacuum the empty housing and the surrounding area before the new filter goes in. The Ascent's tall cabin moves a lot of air — and a lot of dust settles in this housing.
Slide the new filter in with its airflow arrow matching the old one's direction. Push it all the way in until the frame is flush — a filter that stops short leaves a bypass gap around its edges.
Snap the housing cover back on until the tabs click, then lift the glove box until the stops catch. Start the car and run the blower through its speeds — strong, fresh airflow is your sign-off.
Test your repair before closing everything up. If something doesn't work right, double-check your steps.
⚠️ Common Mistakes to Avoid
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