For a 2018 Chevrolet Silverado 1500, the typical front wiper blades are 22 inches on the driver’s side and 20 inches on the passenger’s side. Confirm with the owner’s manual or by inspecting the existing blades, since configurations can vary with cab style and equipment.
The Silverado 1500 uses two front wiper blades. While the standard sizes above cover most trucks, exact lengths can vary by cab configuration (Regular, Double, Crew) and any optional equipment. There is generally no rear wiper on these pickups, so you won’t need a rear blade for standard models.
Front wiper blade sizes
Below are the sizes commonly used on the 2018 Silverado 1500 for the front blades. The numbers refer to the blade length in inches.
- Driver-side blade: 22 inches
- Passenger-side blade: 20 inches
- Rear window blade: Not installed on most Silverado 1500 models
These sizes cover the majority of 2018 Silverado 1500 configurations. If your cab or trim differs, sizes can vary, so verify before purchasing replacements.
How to confirm your exact size
To ensure you buy the correct blades on the first try, follow these steps:
- Check the current blades or packaging for the listed length.
- Consult the owner’s manual or a GM parts catalog for the exact blade size by year and cab configuration.
- Measure the blade length if you’re replacing an old blade: measure from the mounting point to the tip.
- When buying replacements, specify your cab type (Regular, Double, Crew) and the front blade lengths (commonly 22" driver and 20" passenger).
If in doubt, ask at an auto parts store or your dealership; most retailers can verify the correct sizes by vehicle year, make, model, and trim.
Summary
In most cases, a 2018 Chevrolet Silverado 1500 uses a 22-inch driver-side wiper blade and a 20-inch passenger-side blade. There is typically no rear wiper on these pickups. Always double-check with the owner’s manual or a trusted parts catalog to account for cab or trim variations.