Front wiper blades for a 2020 Ram 1500 are typically 20 inches on the driver’s side and 18 inches on the passenger side, with an 11-inch blade for any rear wiper if your truck is equipped with one.
Front wiper blade sizes
The most common configuration for the 2020 Ram 1500’s front wipers is a longer driver-side blade paired with a slightly shorter passenger-side blade. This pairing covers the windshield’s sweep and is the standard specification for many RAM 1500 models built around that year.
- Driver-side blade: 20 inches (508 mm)
- Passenger-side blade: 18 inches (457 mm)
The listed lengths reflect the typical factory configuration. Some trims or production runs may vary slightly, so it’s a good idea to verify with your manual or by measuring the blade currently installed on your vehicle.
Rear wiper blade size (if equipped)
If your 2020 Ram 1500 includes a rear window wiper, the blade is normally a compact size suitable for the rear glass. The standard rear blade length for these trucks is 11 inches (279 mm).
- Rear blade: 11 inches (279 mm)
Rear wiper sizes can differ by market or option package, so checking the exact blade length for your VIN is advisable if you’re unsure.
How to verify and replace
To ensure you buy the correct blades for your specific truck, confirm the exact sizes using one of these methods.
Check the owner's manual or dealer parts catalog
The manual or the official RAM parts catalog lists the exact blade lengths for your model year and trim. This is the most authoritative source for replacement blades.
Measure the blades or inspect the current blades
If you have the blades off, measure them end-to-end or read the length printed on the blade itself. This can also confirm whether your truck uses a split (driver/passenger) setup.
When buying replacements, consider ready-to-install blade assemblies designed for RAM 1500s of that year, and choose reputable brands compatible with your mounting style (hook, pin, or bayonet attachment).
Summary
For a 2020 Ram 1500, plan on 20-inch driver-side front blades and 18-inch passenger-side front blades, with an 11-inch rear blade if your model has a rear wiper. Always verify against your manual or parts catalog, and measure your current blades to ensure a perfect fit. Properly sized blades ensure optimal visibility in diverse weather conditions.