Whether you drive a Toyota car or truck, a Scion SUV, or otherwise, your vehicle has two air filters to capture infiltrates -- one for the engine and one for the cabin. The engine air filter protects the motor and its many parts, and the cabin air filter protects the HVAC system and the interior.

Both can be made of synthetic paper, metal, foam, or cotton, designed either flat, circular, or cylindrical, and in some cases, washable and reusable. Most often, though, you replace them regularly, every 12,000 to 15,000 miles (in other words, annually). You can also do so when you notice that airflow is obstructed, or that the filter media's dirty, damaged, or worn-out. Other signs it's time to change them include a Check Engine light and/or other warnings on the dash, engine power loss and misfires, acceleration problems, worsening gas mileage, and black exhaust smoke. The symptoms you may notice in your interior are whistling or other abnormal sounds coming from the vents accompanied by a stale or dirty odor.

How to install new ones, however, depends on what your owner's documentation and/or the instructions from the manufacturer say to do. Generally, it's a matter of finding the filter housing (under the hood for the engine filter, behind the glove box for the cabin filter), popping the old filter out, and then putting the new one in. Before you buy either, though, be sure that what you're getting is the genuine article.

Why Buy Genuine OEM Air Filters vs. Aftermarket?

When Toyota and Scion design air filters for their vehicles, they do so specifically for them. That's a compatibility guarantee that not all off-brands that offer universal-fit options with approximate measurements can always make.

Where to Order Genuine Toyota & Scion Air Filters Online

Our auto parts store has what you're looking for (and the hardware it'll need for installation). All you have to do is click your model and model year in our catalog and browse it accordingly. Buy now to take advantage of fast shipping to any address in the US; most orders generally go out in as few as 24 hours to 2-3 business days. Shipping options include ground and overnight, and local pickup may be available at our 6324 Bob Bullock Loop location, should you live in or near Laredo TX and want to take the short drive. Returns and cancellations are no problem, either -- just contact our team, and we'll start the process for you. For complete details on our store policies, consult the relevant pages here on our website.

We invite you to get in touch anytime as well, should you have questions, some concerns, or you need buying advice; we'll connect you to one of our knowledgeable parts experts.