What size windshield wipers do I need for a 2019 Subaru Ascent?

For a 2019 Subaru Ascent, you’ll typically need a 26-inch driver-side blade and a 20-inch passenger-side blade for the front, plus an 11-inch rear blade.

This article explains the exact sizes, how to verify them on your vehicle, and practical tips for choosing and replacing wiper blades. It aims to help you shop confidently and ensure optimal visibility in all weather conditions.

Front Wiper Blade Sizes

The front wipers on the 2019 Ascent sweep the windshield with two different blade lengths to match the arm geometry and sweep pattern. Using the correct sizes ensures full coverage and effective clearing.

• Driver-side blade: 26 inches


• Passenger-side blade: 20 inches

Knowing these two sizes helps you shop accurately and prevents blades from rubbing or leaving uncleaned areas on the windshield.

Rear Wiper Blade Size

The rear window is serviced by a single blade designed to fit the dedicated rear wiper arm on the Ascent. Correct rear blade size ensures clear visibility through the back window during rain or snow.

• Rear blade: 11 inches

Using the right rear blade size completes the all-around coverage you need while driving.

How to Verify Your Wiper Sizes

To confirm the exact sizes for your specific vehicle, use these quick verification methods. This helps especially if you’re buying aftermarket blades or if measurements differ by market or trim level.

1. Consult the owner’s manual or the official Subaru parts catalog for your VIN/trim to confirm recommended sizes.


2. Inspect the current blades: measure the length of each blade from tip to tip, including the end caps.


3. Check the blade part numbers stamped on the blade or the packaging to ensure you’re buying the correct replacements.

When in doubt, speak with a parts specialist or reference the Subaru official diagram for your exact model year and region.

Choosing the Right Blades

With sizes confirmed, consider blade type and climate to optimize performance and longevity. Different blade designs offer varying levels of performance in rain, snow, and ice.

• Blade type: Conventional (twist-to-install) vs. beam (frameless) blades


• Winter-ready blades: Look for designs that resist freezing and maintain contact in low temperatures


• Quality brands: Popular choices include Bosch, Rain-X, Anco, and Valeo

Selecting the right combination of size, design, and material can improve visibility and reduce streaking during inclement weather.

Installation and Maintenance

Proper installation and periodic maintenance extend blade life and performance. Follow these guidelines to replace blades smoothly and keep them in good condition.

Replacing Wiper Blades

1. Purchase the correct sizes (26" driver, 20" passenger, 11" rear) and your blade type (beam or conventional).


2. Lift the wiper arm away from the windshield until it stays upright.


3. Release the old blade from the adapter or hook mechanism and remove it.


4. Attach the new blade to the wiper arm, ensuring a secure fit before lowering the arm back to the glass.


5. Test the wipe cycle to confirm full contact and even streak-free cleaning.

Regularly inspect blades for cracks, splitting, or hardening rubber, especially after extreme temperatures. Replace blades at least once a year or sooner if performance deteriorates.

Seasonal and Driving Considerations

Winter Readiness

Winter conditions can degrade blade performance. Consider winter-specific blades or prep steps such as ensuring the blades are installed securely and removing any ice buildup on the blades or windscreen before use.

Performance in Heavy Rain

For heavy rain or bugs and dirt accumulation, high-quality beam blades tend to provide more uniform contact and fewer streaks across the windshield.

Summary

To correctly equip a 2019 Subaru Ascent with windshield wipers, plan for front blades of 26 inches on the driver’s side and 20 inches on the passenger side, plus an 11-inch rear blade. Verify sizes via the owner’s manual, VIN-based parts catalogs, or by physically measuring current blades. Choose a blade type suited to your climate, install carefully, and replace blades as needed to maintain clear visibility and safe driving.

What size wiper blades for 2019 Subaru Ascent?

26"/20" wiper blade.

Can I use a 28 wiper instead of 26?

No, you should not use a 28-inch wiper instead of a 26-inch one because it will likely cause problems, such as the blades hitting each other, damaging the wiper motor due to added stress, or leaving uncleared areas on the windshield. The correct size ensures the wipers function properly, stay in contact with the glass, and do not cause premature wear or damage to the system or the glass itself. 
This video explains why different sized windshield wipers are used on a car: 57sHistory of Simple ThingsYouTube · Jun 27, 2025
Problems with using a longer blade

• Physical interference: The longer blades may hit each other or the sides of the windshield, which can damage the blades, motor, or even the car's paint. 
• Reduced visibility: The longer blades may not conform to the window's shape properly, creating streaks and uncleared spots, which reduces visibility. 
• Increased stress on the motor: The wiper motor wasn't designed for the extra weight and drag of a longer blade, which can lead to premature wear and tear or eventual failure. 
• Potential for glass damage: The uneven pressure from an oversized blade could potentially scratch or crack the windshield. 

How to find the right size

• Check your vehicle's owner's manual for the recommended sizes. 
• Visit an auto parts store; they have guides that can look up the correct size for your car's make and model. 
• Remember that the driver's and passenger's side wipers can sometimes be different lengths on the same vehicle. 

Do subarus need special windshield wipers?

If you're going to get the best Subaru wiper blades, you need to be sure that you get the right size. Most vehicles made by this automaker require 24- to 26-inch driver's side blades, 16- to 18-inch passenger side blades, and 14-inch rear blades.

How do I know my windshield wiper size?

You can find your windshield wiper size by checking your owner's manual, using an online wiper size finder tool on an auto parts store's website, or by measuring the blades currently on your car. It's important to note that the driver and passenger side blades may be different lengths, so check both. 
Method 1: Check your owner's manual

• Your vehicle's owner's manual should list the correct sizes for the front and rear wipers. 
• Look for a section about the windshield wipers or maintenance. 

Method 2: Use an online tool 

• Many auto parts websites, such as AutoZone.com, have a "wiper blade size finder" tool. 
• You will typically need to enter your vehicle's year, make, and model to get the correct size. 

This video explains how to find the right size of wiper blades for your car: 1mStatUpBoxYouTube · Feb 7, 2023
Method 3: Measure the blades on your car 

• Use a tape measure to measure the length of each wiper blade from tip to tip. 
• Lift the wiper arm away from the windshield and straighten the blade if necessary. 
• Note both the driver's and passenger's side lengths, as they are often different sizes. 
• Round the measurement to the nearest inch. 
• Write down the sizes to bring with you or use when shopping online. 

Method 4: Consult a professional

• If you are unsure, a certified professional at an auto parts store or a car service center can help you find the correct size. 

You can watch this video to learn how to measure your wiper blades: 32sTOPUP COVER PHILIPPINESYouTube · Nov 3, 2021