For the 2020 Wrangler, front wipers use 20-inch blades on the driver’s side and 18-inch blades on the passenger’s side. The rear wiper blade, if your model has one, is typically about 11 inches. Replacing them is a quick, tool-free job you can do in a few minutes with the right blades. This guide walks you through identifying the correct blades and performing the replacement safely.
What you’ll need
Before you begin, gather the right blades and a couple of basic items to ensure a smooth swap.
- Replacement wiper blades in the correct sizes: 20 inches (driver) and 18 inches (passenger) for the front, and about 11 inches for the rear blade if equipped.
- Optional: a clean microfiber cloth to wipe the blade area and windshield before reattach.
- Advice: consider OEM Jeep blades or reputable aftermarket brands (e.g., Bosch, Rain‑X) that match the connector type.
With the right blades on hand, you’re ready to proceed to removing the old blades and installing the new ones.
Front wiper blade replacement (driver and passenger sides)
Follow these steps to replace the front blades on a 2020 Wrangler JL. The process is the same for both sides, with the driver-side blade being longer.
- Lift the wiper arm away from the windshield until it is perpendicular to the glass and rests securely in a clipped position.
- Locate the blade’s release mechanism at the connection to the wiper arm. Most Wrangler blades use a simple release tab or a quick-release connector.
- Release the old blade from the arm. Depending on the connector, either press the release tab and slide the blade off, or rotate/pull the blade slightly to disengage the hook or pin.
- Take the new blade and align its connector with the wiper arm. Slide it onto the arm until you hear or feel a click, indicating it’s secured. If your blade uses a two-piece adapter, make sure the adapter is firmly attached before attaching to the arm.
- Lower the wiper arm back onto the windshield slowly, ensuring the blade sits flat against the glass without lifting at the ends.
- Repeat the steps for the other front blade. After both are installed, test them by operating the wipers and spraying water to check for full contact and even wiping.
Front blade replacement is complete once the blades move smoothly with no skipping or streaking. If streaks remain, consider cleaning the blade edges and re-checking the attachment.
Rear wiper blade replacement (if equipped)
If your 2020 Wrangler includes a rear wiper, replace the blade using the following steps. The rear blade attachment is typically a simpler, latch-style connection, but check your blade package for the exact method.
- Lift the rear wiper arm away from the rear window until it rests at a comfortable angle.
- Locate the release on the rear blade’s connector. Depending on the design, you may need to press a tab or rotate the blade to release it from the arm.
- Remove the old blade from the wiper arm carefully to avoid scratching the window.
- Attach the new rear blade by aligning the connector with the arm and securing it until you hear a click or feel it lock in place.
- Lower the rear wiper arm back onto the window and test the operation to confirm full coverage without streaks.
Rear blade replacement is straightforward, but sizes and connectors can vary by trim and year. If in doubt, verify the exact rear blade size and attachment style for your specific vehicle configuration.
Choosing the right blade and maintenance tips
Choose blades designed for your Jeep’s operating conditions. Beam blades are popular for harsh weather and provide uniform pressure; conventional frame blades are familiar and affordable; hybrids offer a balance of performance and price. Check the exact blade length for both front positions (20" driver, 18" passenger) and the rear (about 11" on Wrangler models with rear wipers). Replacing blades in pairs helps maintain even wipe performance, and replacing once or twice a year is a common maintenance interval depending on climate and usage.
Tips and common issues
- Avoid letting wiper arms snap back onto the windshield. Lower them gently to prevent chipping the glass.
- Clean the window and blade edges during replacement to prevent residue from causing streaks.
- If you have trouble finding the right adapter, bring the old blade to the store to compare connectors or purchase an OEM replacement kit that includes adapters.
- Test the wipers at low speed before using high speeds to ensure proper contact across the entire blade length.
Regular checks help ensure optimal visibility and reduce the risk of streaks during rain or snow.
Summary
Replacing the windshield wipers on a 2020 Jeep Wrangler is a quick, do-it-yourself task. The front blades are typically 20 inches (driver) and 18 inches (passenger), with a rear blade around 11 inches if your model has one. By selecting the correct blade types, releasing the attachment with the proper method, and securing the new blades firmly, you’ll restore clear visibility in minutes. Always test after installation and replace blades as needed to maintain peak performance.


