Why Windshield Wipers are Different Sizes

Why Windshield Wipers are Different Sizes | Paducah, KY

There’s a lot of maintenance on your car that would be better off left to a professional. But there are plenty of areas that you can work yourself with relative ease. Changing out the windshield wipers is a quick DIY that provides a better driving experience.

But when it comes time to buy new wipers, have you noticed that you have to buy two different sizes? To maximize the surface area covered by the windshield wipers, automakers designed the blades to sit in an off-center position on the hood.

Older cars had centralized wipers that left a lot of the bottom and edges of the windshield untouched. With the newer design, when the driver’s side wiper swipes across, it stops at a 90 degree angle. More of the surface area gets cleared with this setup than if both blades sat centrally. But with these angles, one blade needs to be shorter to be able to fit the off-center position.

Depending on the vehicle you drive, the driver’s side could be longer than the passenger’s and vice versa. To figure out which blades to get when buying new, consult the owner’s manual. If the manual is not available, getting assistance from a car parts store or local dealership will help you find the correct size.

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