The Toyota GR Supra cabin air filter is not a one-size-fits-all part. For 2020–2026 GR Supra models, Toyota identifies the correct filter by OEM part number and VIN fitment, not by a universal length-and-width size. Current Toyota parts data lists 87139-WAA03 as the newer version of 87139-WAA01, and 87139-WAA02 is also listed as a genuine Toyota cabin air filter option for the GR Supra.
Quick Answer
The correct Toyota Supra cabin air filter “size” is best matched by OEM part number: 87139-WAA03, which Toyota lists as the newer version of 87139-WAA01, or 87139-WAA02 for certain GR Supra applications. Confirm fitment with your VIN before ordering, because Toyota does not publish one universal cabin-filter dimension for every Supra configuration.
Key Takeaways
- For 2020–2026 GR Supra models, use Toyota part-number fitment rather than a generic cabin-filter size.
- Toyota lists 87139-WAA03 as an Air Refiner Element with previous version 87139-WAA01.
- Toyota’s maintenance chart calls for cabin air filter replacement every 20,000 miles under the listed schedule.
- Replace the filter sooner if airflow drops, odors appear, or the car is driven in dusty or high-pollen conditions.
- The filter is accessed from the passenger-side lower dash/glovebox area, not by guessing from the engine bay.
At a Glance
| Time Required | 10–20 minutes for inspection or replacement |
| Difficulty | Easy to moderate DIY |
| Tools Needed | Flashlight, small screwdriver or trim tool, and the correct driver for your access-panel fasteners |
| Cost | Varies by dealer, filter type, and local pricing; Toyota notes that dealers set actual prices |
Exact Supra Cabin Air Filter Size (2020–2026): Dimensions & OEM Part Numbers
For the 2020–2026 Toyota GR Supra, the most reliable fitment detail is the OEM Toyota cabin air filter part number. Toyota’s official parts catalog identifies 87139-WAA03 as an Air Refiner Element and lists 87139-WAA01 as its previous version. Toyota also lists 87139-WAA02 as a genuine cabin air filter part number.
That matters because the GR Supra shares engineering with BMW’s G29 Z4 platform, and aftermarket catalogs may cross-reference several filter numbers. Do not buy only by visual similarity. Use the Toyota part number, your VIN, and the filter’s gasket shape to confirm the correct fit.
| Toyota Part Number | Status / Use | What to Check Before Buying |
|---|---|---|
| 87139-WAA03 | Current Toyota Air Refiner Element; Toyota lists 87139-WAA01 as the previous version. | Confirm by VIN, dealer catalog, and the filter door/housing shape. |
| 87139-WAA01 | Earlier GR Supra cabin filter number now shown by Toyota as a previous version of 87139-WAA03. | If a listing still shows WAA01, check whether it has been superseded to WAA03 for your VIN. |
| 87139-WAA02 | Genuine Toyota cabin filter option listed for the GR Supra in Toyota parts channels. | Verify whether your car calls for WAA02 or the WAA03/WAA01 supersession path. |
Note: Toyota parts pages identify the Supra cabin filter by part number and vehicle fitment. If a seller gives only dimensions without a Toyota or trusted aftermarket cross-reference, treat that listing as incomplete.
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Which Supra Years Use 87139-WAA01, 87139-WAA02, or 87139-WAA03?
Most 2020 and newer GR Supra listings point to the Toyota WAA-series cabin air filter family, but the exact number can depend on catalog updates, market, trim, and supersession history. The key update is that Toyota now lists 87139-WAA03 with 87139-WAA01 as a previous version. That means an older article or parts listing may still mention WAA01 even when a dealer now supplies WAA03.
87139-WAA02 remains a genuine Toyota cabin filter number, but you should not assume it replaces WAA01 or WAA03 for every Supra. Before ordering, enter your VIN on Toyota’s parts site or ask a Toyota parts counter to confirm the exact air refiner element for your car.
Pro Tip: If your old filter is available, compare the frame shape, gasket, pleat direction, and locking-tab clearance before installing the new one. A filter that is only a few millimeters off can leak unfiltered air around the edges.
How to Measure Your Supra’s Cabin Filter Opening
If you are buying an aftermarket filter and the seller does not clearly cross-reference the Toyota part number, measure the filter and housing before ordering. The goal is not to force a generic filter into place; it is to confirm that the replacement matches the factory housing and seals properly.
| Dimension | Method | Notes |
|---|---|---|
| Width | Tape measure or caliper | Measure the old filter frame edge to edge, not only the media |
| Height | Ruler or caliper | Include the frame and gasket profile |
| Depth | Tape measure or caliper | Check the stop lip and access-door clearance |
Also inspect the filter door and surrounding housing. Leaves, grit, or a bent filter frame can make the replacement feel too large even when the part number is correct. Clean the housing before installation so the gasket can sit flat.
Best Aftermarket & Charcoal Cabin Air Filters That Fit the Supra
A good aftermarket or charcoal cabin air filter for the Supra should meet three requirements: it must cross-reference the correct Toyota part number, match the factory housing shape, and seal evenly around the perimeter. Do not rely on “fits most Toyota” wording, because the GR Supra cabin filter is not shared with typical Toyota sedans and crossovers.
Charcoal or deodorizing filters can help reduce some odors and gaseous contaminants, while standard particulate filters focus mainly on dust, pollen, and airborne debris. Either style can work well if it is made for the Supra housing. Poor fitment is worse than a basic OEM-style filter, because gaps allow unfiltered air to bypass the media.
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Efficient Filtration: Particles are prevented from entering the cabin by a close-meshed, non-woven filter layer that protects your engine from wear to extend the life of your vehicle's system. It also optimizes air conditioning and heating systems, ensuring high flow capacity.
How to Remove and Inspect the Supra Cabin Air Filter
The GR Supra cabin filter is accessed from the passenger-side lower dash/glovebox area. Work gently, keep track of the fasteners, and avoid forcing the filter door. Fastener style can vary by model year or prior service, so match the tool to the screw head you see.
- Park the car, switch the ignition off, and move the passenger seat back for more working room.
- Use a flashlight to locate the lower passenger-side trim or access panel beneath the glovebox area.
- Remove the retaining screws or clips from the access panel.
- Open the cabin filter cover and note the old filter’s orientation before pulling it out.
- Inspect the old filter for leaves, dark dust buildup, moisture, or a crushed frame.
- Vacuum loose debris from the housing without pushing dirt deeper into the HVAC box.
- Install the new filter in the same orientation shown by the filter or housing markings.
- Reinstall the cover and access panel, then run the fan at low and medium speed to check for noise or weak airflow.
Warning: Do not crush, fold, or trim the new cabin air filter to make it fit. A forced filter can deform the frame, block airflow, or leave gaps that let dust bypass the media.
Fitment Pitfalls: Confirm Orientation, Seal, and Correct Fit
The most common Supra cabin filter mistakes are ordering by a generic size, installing the filter backward, or closing the door before the gasket is fully seated. These issues can cause weak airflow, dust in the cabin, blower noise, or a musty smell that returns quickly after replacement.
Correct Filter Orientation
Use the airflow arrow or orientation marking printed on the replacement filter and compare it with the old filter before removal. If the filter and housing both have arrows, follow those markings. If the old filter was installed incorrectly, rely on the new filter instructions and the housing design rather than copying the mistake.
- Check the Toyota part number or trusted aftermarket cross-reference before installation.
- Slide the filter in straight so the pleats do not catch on the housing edge.
- Do not reverse the filter just because it seems easier to insert.
- After installation, run the blower and listen for rubbing, whistling, or vibration.
Ensure Proper Seal
The cabin filter frame and gasket must sit evenly against the housing. A small gap can let dust, pollen, and odor-causing debris bypass the filter. Before closing the cover, press gently along the exposed edge and confirm that the filter is not twisted or pinched.
Also check the filter cover latch. If the cover does not close normally, remove the filter and inspect the frame alignment. A correct filter should not require heavy force to secure the door.
Recommended Replacement Intervals and When to Change More Often
Toyota’s GR Supra maintenance chart lists cabin air filter replacement every 20,000 miles. Toyota also advises consulting the owner’s manual and changing cabin filters more often when the vehicle is used in harsh environments, including dusty areas, high pollen conditions, or humid climates.
- Replace at the scheduled interval listed in the Toyota maintenance guide.
- Inspect sooner if the car is driven on dusty roads, in heavy pollen seasons, or in polluted city traffic.
- Replace immediately if the filter is wet, moldy, crushed, or packed with leaves.
- Keep service receipts if warranty or maintenance records matter to you.
Toyota’s GR Supra maintenance chart marks the cabin air filter for replacement at 20,000-mile intervals, with more frequent attention recommended when driving conditions are harsh.
Signs a Cabin Air Filter Is Clogged and Quick Diagnostic Checks
A clogged Supra cabin air filter usually shows up through the HVAC system before you see the filter itself. Watch for reduced airflow from the vents, a musty smell when the fan starts, more dust inside the cabin, or a blower that sounds louder than usual.
For a quick check, set the fan to medium speed and compare airflow from each vent. If airflow is weak across the cabin, inspect the filter. If one vent is weak but the others are normal, the issue may be a vent, blend door, or duct problem rather than the filter alone.
- Weak airflow: The filter may be packed with dust or debris.
- Musty odor: Moisture or organic debris may be trapped in the filter or housing.
- Dusty dashboard: The filter may be clogged, missing, damaged, or poorly sealed.
- Whistling or blower noise: The filter may be misaligned or the cover may not be seated.
Cost, Warranty, and Where to Buy Genuine Toyota Cabin Air Filters
Buy genuine Supra cabin air filters from Toyota’s official parts site, an authorized Toyota dealer, or a reputable parts retailer that clearly shows Toyota part numbers and VIN fitment. Toyota notes that dealer pricing can vary and that actual price may exclude taxes, installation, shipping, and dealer charges.
Toyota’s official parts warranty information states that Toyota Genuine Parts purchased over the counter or online from an authorized Toyota dealer and installed by a third party carry a 12-month parts-only warranty from the date of purchase. Parts installed by an authorized dealer carry 12 months of coverage regardless of mileage, or the remainder of the applicable new-vehicle limited warranty, whichever gives greater coverage.
- Best fitment check: Toyota VIN lookup or dealer parts counter
- Common OEM numbers: 87139-WAA03, 87139-WAA01, 87139-WAA02
- Best buying source: Authorized Toyota dealer or Toyota’s official parts catalog
- Avoid: Listings with no VIN fitment, no part-number cross-reference, or vague “universal” claims
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Frequently Asked Questions
Are cabin filters one size fits all?
No. Cabin air filters are vehicle-specific. The Toyota GR Supra uses a dedicated filter shape and gasket profile, so you should match by Toyota part number, VIN, and housing fitment instead of buying a universal filter.
What is the correct Toyota Supra cabin air filter part number?
Common genuine Toyota numbers for the 2020+ GR Supra include 87139-WAA03, 87139-WAA01, and 87139-WAA02. Toyota currently lists 87139-WAA03 with 87139-WAA01 as a previous version, but you should still confirm by VIN before ordering.
How often should I replace the Supra cabin air filter?
Toyota’s GR Supra maintenance chart lists cabin air filter replacement every 20,000 miles. Inspect or replace it sooner if airflow drops, odors appear, or you drive in dusty, humid, polluted, or high-pollen conditions.
Can I use a BMW Z4 cabin filter in a Toyota GR Supra?
Some aftermarket catalogs cross-reference Supra and BMW Z4 applications, but do not assume every Z4 filter is correct. Use a trusted catalog, confirm the Toyota part-number cross-reference, and compare the gasket and frame shape before installing.
What is the part number of the cabin air filter on a Toyota C-HR?
Toyota C-HR cabin filter part numbers vary by model year, market, and filter type. Some C-HR applications list numbers such as 87139-F4010 or related Toyota air refiner elements, but you should verify by VIN. Do not use a Supra cabin filter for a C-HR.
Conclusion
The safest way to buy a Toyota Supra cabin air filter is to match the OEM part number and VIN fitment, not a generic size. For 2020–2026 GR Supra models, check Toyota numbers 87139-WAA03, 87139-WAA01, and 87139-WAA02, with special attention to Toyota’s note that WAA03 is the newer version of WAA01. Replace the filter at Toyota’s listed 20,000-mile interval, inspect it sooner in dusty or high-pollen conditions, and always confirm orientation and sealing before closing the access panel.
Sources
- Toyota Air Refiner Element #87139-WAA03 — confirms Toyota part number, previous version 87139-WAA01, product purpose, and warranty language.
- Toyota Cabin Air Filter #87139-WAA02 — confirms genuine Toyota WAA02 cabin filter listing and general cabin-filter function.
- Toyota 2026 GR Supra Warranty & Maintenance Guide — backs the 20,000-mile cabin air filter replacement interval and Toyota maintenance guidance.
- Toyota GR Supra Manuals & Warranties — official Toyota owner resource for manuals, warranty information, and maintenance documents.
- Toyota New Zealand GR Supra Service Requirements — supports more frequent inspection in dusty operating conditions.
