The short answer: most 2021 Ford F-150s use 20-inch wiper blades on both the driver and passenger sides.
Windshield shapes and trims can vary by model year, option packages, and production run, so it’s important to verify the exact size for your specific truck before buying replacements.
Typical front wiper sizes for the 2021 F-150
These sizes cover the front wipers most commonly listed for the 2021 F-150 across many configurations. Use these as a starting point, then confirm with your vehicle details if needed.
- Driver-side blade: 20 inches
- Passenger-side blade: 20 inches
Bottom line: for the majority of 2021 F-150 models, plan for two 20-inch blades. If your windshield or trim is unusual, verify before purchase.
How to confirm the exact size for your vehicle
Follow these steps to ensure you order the correct blade length for your specific truck.
- Check the owner’s manual or the wiper blade section for the listed sizes.
- Inspect the current blades for size markings stamped on the blade or packaging.
- Measure the blade length with a tape measure if there are no markings.
- Use Ford’s official parts catalog or ask a dealership/auto parts retailer with your VIN to pull the exact replacement size.
Verifying with these methods helps you avoid purchasing blades that don’t fit or perform properly.
Summary
For most 2021 Ford F-150s, front wiper blades are 20 inches on both the driver and passenger sides. Always double-check with the owner’s manual, the current blades, or a VIN-based parts lookup to account for trim or windshield variations. If in doubt, consult a dealer or reputable parts retailer.