Front blades are typically 26 inches on the driver's side and 18 inches on the passenger's side; the rear blade, if your model has one, is usually 12 inches.
The 2015 Kia K5, known in some markets as the Optima of that generation, follows common sedan patterns where the front wipers use two different lengths. Wiper sizes can vary slightly by market or trim, so it’s wise to verify with your owner's manual or by checking the blades currently installed on your car.
Front Wiper Blade Sizes for 2015 Kia Optima (K5)
The front blades on this generation of Kia Optima typically come in two lengths, with the longer blade on the driver’s side and a slightly shorter blade on the passenger side.
- Driver's side: 26 inches
- Passenger's side: 18 inches
These sizes align with standard aftermarket replacements, but variations can occur by market or trim level.
Rear Wiper Blade Size (if applicable)
Some 2015 Optima/K5 models include a rear wiper. If yours has one, the blade is usually 12 inches.
- Rear: 12 inches
Not all trims or markets equip a rear wiper, so confirm whether your specific vehicle has this blade.
How to confirm the exact size for your car
To ensure you buy the correct blades, consider these steps:
- Check the owner's manual for the recommended blade sizes.
- Inspect the current blades and measure their length from end to end (mounted or removed).
- Use your VIN or model details in Kia’s official parts catalog or a trusted auto parts retailer to pull the OE size.
- Ask at a local auto parts store with year, make, model, trim, and market information to get the right fit.
Having the correct sizes helps maintain visibility in rain and snow and ensures optimal performance from your wipers.
Summary
For a 2015 Kia Optima (K5), plan for 26" driver and 18" passenger front blades, with a 12" rear blade if your car has a rear wiper. Always verify against the owner's manual or parts catalog, as sizes can vary by market or trim. Regular replacement keeps visibility clear and driving safety high.