The 2019 Kia Optima uses two filters: an engine air filter and a cabin air filter. Exact part numbers vary by engine (2.4L or 2.0L turbo) and trim, so verify with your VIN or owner’s manual when buying replacements.
Engine air filter
The engine air filter cleans the air that enters the combustion chamber. It sits in a rectangular housing in the engine bay and is a routine maintenance item that helps sustain performance and fuel efficiency.
What to know about the 2019 Optima’s engine air filter
Filter type and fit
Most 2019 Optima models use a standard rectangular panel engine air filter. While the exact part number can differ between the 2.4L and the 2.0L turbo engines, both will fit the same general housing and require a properly oriented replacement. Always confirm the correct filter by checking the VIN or the vehicle’s owner manual.
Below is a practical, step-by-step guide to the engine air filter replacement.
- Open the hood and locate the engine air filter housing, typically a black plastic box near the front or side of the engine bay with clips or screws.
- Release the clips or remove the screws and lift the lid to reveal the filter.
- Remove the old filter, noting the correct orientation indicated by arrows on the filter or housing.
- Wipe out the housing’s interior with a clean rag to remove any dust or debris.
- Place the new filter into the housing in the same orientation as the old one, ensuring a snug, even fit.
- Reattach the housing lid and secure all clips or screws; double-check that the cover sits flush.
- Start the engine and listen for any unusual sounds indicating the housing isn’t sealed properly.
Replacing the engine air filter at the recommended interval helps maintain engine performance, fuel economy, and emissions control.
Cabin air filter
The cabin air filter cleans air entering the vehicle’s HVAC system, reducing pollen, dust, and odors inside the cabin. Access is usually behind the glove box, and replacement frequency depends on driving conditions and environment.
Where to locate and how to replace the cabin air filter
Filter type and fit
The cabin filter for the 2019 Optima is a standard panel-type filter. The exact part number can vary, so check your VIN or owner’s manual to confirm the correct fitment. Replacing the cabin filter regularly helps maintain interior air quality and HVAC efficiency.
Here are the steps to locate and replace the cabin air filter on a 2019 Optima.
- Lower the glove box by gently pressing in the sides (or releasing the damper, depending on trim) so you can access the filter housing behind it.
- Open the cabin filter access panel; remove the cover by releasing the clips or sliding it out.
- Take out the old filter and note the airflow direction printed on the frame.
- Clean the filter housing area to remove any dust or debris.
- Insert the new filter with the arrows pointing toward the HVAC core, ensuring a proper seal.
- Reinstall the access panel and the glove box, making sure everything is securely in place.
Keeping the cabin filter fresh improves A/C cooling efficiency and cabin air quality.
Where to buy and how to verify exact requirements
For accuracy, use your vehicle’s VIN to pull the exact engine code (2.4L or 2.0L turbo) and confirm the matching engine air filter part number. Then verify the cabin filter specification for your model year and trim. Both OEM Kia parts and reputable aftermarket filters are options; prioritize fit and filtration efficiency.
Additional notes
If you’re unsure about the correct parts or replacement procedure, consult a Kia dealer or a trusted mechanic. Using the wrong filter or installing it incorrectly can affect performance or cabin air quality.
Summary: The 2019 Kia Optima requires two filters—an engine air filter and a cabin air filter. The exact parts depend on whether your car has the 2.4L or 2.0L turbo engine, so verify with your VIN or owner’s manual. Replacement is straightforward with the housing accessible in the engine bay for the engine filter and behind the glove box for the cabin filter. Regular replacement helps maintain engine efficiency and cabin air quality.
What is the part number of the Kia air filter?
Genuine OEM Kia Cabin Air Filter 97133-A9000.
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 |
What is the part number for the air filter on a Kia Optima?
28113-C1100 - Air Filter 2016-2020 Kia Optima | Kia. Parts Store.
Where is the air filter in a 2019 Kia Optima?
To access the air filter. First open the hood.