There isn't a single universal air filter part number for the Kia Optima; it depends on model year and engine. To get the exact part number, consult the official Kia parts catalog or your vehicle's VIN to confirm with a dealer or trusted parts retailer.
The Kia Optima—marketed as the K5 in some regions—has spanned multiple generations with different engines and intake designs. Because the air-filter element changes with the engine and configuration, multiple part numbers exist within the same generation. This article explains how to locate the precise part number and what information you’ll need when ordering.
How to locate the exact air filter part number
Use reliable sources that let you search by year, engine, and VIN. The following methods are commonly used by owners and shops to confirm the correct part number before ordering.
- Official Kia parts catalog or KiaParts.com search by VIN or by model/year/engine to display the exact part number.
- Ask a Kia dealer or authorized service center for the exact OE part number for your vehicle using your VIN.
- Check the owner’s manual or the service booklet if your vehicle lists a part number for the air filter or gives a filter specification.
- Use reputable auto parts retailers that filter results by year, engine, and market; cross-check the listing against the OEM part number displayed in the retailer’s catalog.
- Inspect the air filter you remove from the vehicle to confirm the size and tab/clip configuration if you’re replacing a used filter, and match it to the new filter’s packaging as a confirmation step.
These sources help ensure you don’t accidentally order an incompatible filter. Always double-check that the part number corresponds to your exact engine and market.
What information you’ll need to order the right part
Before ordering, gather details about your Optima to ensure the right filter is delivered. This reduces the chance of mismatches and returns.
- Model year and generation (Optima or K5, depending on market)
- Engine type (for example, 2.0L turbo, 2.4L, or other available options by year)
- VIN or at least the engine and trim level
- Market/region (US, Europe, Asia, etc.) because part numbers can vary by market
- Old part number if you already have one on the filter housing or packaging
With these details, you can locate the exact OEM part number or a matching aftermarket filter with confidence.
Optional: Ask for the exact number if you provide details
If you share your Optima’s year, engine, and market, I can help identify the likely OE part number or guide you to the official catalog page that lists it.
Summary
In short, there isn’t a single part number for all Kia Optima air filters. The precise number depends on the vehicle’s year, engine, and market. Use VIN-based lookups or the official Kia parts catalog to confirm, and gather key details before ordering. Doing so helps ensure the new air filter fits correctly and maintains optimal engine performance.
What is the air filter number for a 2016 Kia Optima?
28113-C1100 - Air Filter 2016-2020 Kia Optima | Kia.
What is the part number of the Kia air filter?
Genuine OEM Kia Cabin Air Filter 97133-A9000.
Where is the part number on an air filter?
And today we're going to talk about identifying. The part number on your air filter. We have three ways that we mark the uh part number onto the air filters. We either stamp it roll it or label. It.
What size air filter for 2019 Kia Optima?
2019 Kia Optima 2.4L L4 Gas Air Filter
| Air Filter Shape | Panel |
|---|---|
| Outside Length | 11.125 in (283 mm) |
| Outside Width | 7.813 in (198 mm) |
| Package Contents | 1 Air Filter |
| Package Quantity | 1 |


