The standard front wiper size for most Kia K5 models is a 26-inch blade on the driver’s side and an 18-inch blade on the passenger’s side. Some older Optima-based K5s and certain regional variants may use 24-inch/18-inch blades. Always verify for your exact year and market.
Current generation front wiper sizes
The latest Kia K5 models, generally from 2021 onward, most often use a 26-inch driver-side blade and an 18-inch passenger-side blade in North America and many other regions. Variations can occur by trim or market, so confirming the exact sizes for your car is wise.
- Driver’s side: 26 inches; Passenger’s side: 18 inches.
These sizes cover the majority of 2021–present K5s sold in the United States, Canada, and many other markets. Always double-check against your vehicle’s specifications.
Older generations and market variations
In markets where the K5 is sold as the Optima or in earlier model years, blade sizes were commonly different. A typical setup for older Kia Optima/K5 models is 24 inches on the driver’s side and 18 inches on the passenger side.
- 2011–2020 Optima/K5 (older generation): Driver 24 inches; Passenger 18 inches.
Older or region-specific variants may still use these sizes, so it’s important to verify for your exact year and market before purchasing replacements.
How to confirm your exact size
To make sure you buy the correct blades, use these practical steps as a quick verification guide.
- Check the owner’s manual or the door jamb sticker for the recommended wiper blade sizes.
- Use a reputable parts retailer or Kia’s official support site and enter your year, make, model, and market to view the exact fit guide.
- If you already have the blades off, measure the blade length with a ruler or tape measure, or bring the old blades to the store for an exact match.
Verification helps avoid buying the wrong size, especially for markets where size differences exist between generations or trims.
Summary
For most current Kia K5 cars, plan for 26-inch driver-side and 18-inch passenger-side front wiper blades. Older models and some markets may use 24"/18". Always confirm with your year and region using the owner’s manual or a trusted fit guide from a retailer or Kia’s official resources.