2020 Jeep Wrangler Rear Wiper Blade Size – Your Complete DIY Guide

Is your 2020 Jeep Wrangler’s rear window looking a bit blurry after a trail run or a rainy commute? You’re not alone. A clear view out the back isn’t just a convenience; it’s a critical safety feature, especially when you’re backing up in a tight spot or navigating dusty trails.

Don’t let a streaky rear wiper compromise your visibility or your off-road adventures. Knowing the correct 2020 Jeep Wrangler rear wiper blade size is crucial for safety and clear sight. Trying to force the wrong size can lead to poor performance, damage to your wiper arm, or even scratches on your glass.

Here at FatBoysOffroad, we understand the importance of keeping every part of your rig in top shape. In this comprehensive guide, we’ll walk you through everything from identifying the right size to installation tips, maintenance, and even eco-friendly options. Get ready to tackle this simple DIY task like a pro and ensure your rear view is always crystal clear!

Unveiling the Exact 2020 Jeep Wrangler Rear Wiper Blade Size

Let’s cut straight to the chase: the most common and recommended 2020 Jeep Wrangler rear wiper blade size is 13 inches. This applies to the JL generation of Wranglers, which includes your 2020 model. While front wiper blades often come in different sizes for the driver and passenger side, the rear blade is typically a single, standard size.

This 13-inch measurement is for the rubber blade itself, not the entire arm assembly. When you’re shopping for a replacement, look for blades specifically labeled for the 2020 Jeep Wrangler rear, or simply confirm the 13-inch length.

Why the Right Size Matters for Your Wrangler

You might think a slight difference won’t hurt, but when it comes to wiper blades, precision is key. Using the correct 2020 Jeep Wrangler rear wiper blade size offers several significant benefits:

  • Optimal Visibility: A perfectly sized blade covers the intended sweep area without gaps, ensuring maximum visibility in all weather conditions.
  • Prevents Damage: An ill-fitting blade can put undue stress on the wiper motor and arm mechanism, leading to premature wear or even costly repairs.
  • Reduces Noise and Streaking: Blades that are too long or too short can chatter, skip, or leave streaks, making your visibility worse, not better.
  • Longevity: A properly sized blade performs efficiently, reducing friction and extending the life of both the blade and your wiper system.

Don’t compromise on something as vital as clear vision. Stick to the recommended size for the best performance and peace of mind.

Quick Reference: JL vs. JK Rear Wipers

It’s worth a quick note on generations. Your 2020 Jeep Wrangler is a JL model. If you ever find yourself working on an older JK generation (2007-2018), the rear wiper blade size is also typically 13 inches. However, always double-check the specifics for any vehicle you’re working on, as manufacturers can make subtle changes year to year or across trim levels. For your 2020 JL, 13 inches is the sweet spot.

How to Identify Your 2020 Jeep Wrangler Rear Wiper Blade Size (Even If You Forget)

Life happens. Maybe you lost your owner’s manual, or you’re helping a buddy out on the trail. Knowing how to quickly verify the 2020 Jeep Wrangler rear wiper blade size on the fly is a handy skill for any DIYer or off-roader. Here are a few reliable methods:

Checking Your Owner’s Manual

Your Jeep’s owner’s manual is a treasure trove of information. It contains precise specifications for all consumable parts, including wiper blade sizes. Look under sections related to “Maintenance,” “Specifications,” or “Wipers.” This is always the most authoritative source.

The “Measure It Yourself” Method

If the manual is missing, grab a tape measure. It’s simple:

  1. Lift the Wiper Arm: Gently lift the rear wiper arm away from the glass until it locks into its upright position.
  2. Measure the Blade: Measure the rubber blade from end to end. Be careful not to measure the plastic or metal frame that holds the blade, just the rubber wiping element.
  3. Confirm: You should consistently get a measurement very close to 13 inches.

This method gives you direct confirmation, especially useful if you suspect a previous owner might have installed the wrong size.

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Online Parts Finder: A Digital Lifesaver

Most auto parts retailers, both online and brick-and-mortar, have vehicle lookup tools on their websites. You simply input your vehicle’s year, make, and model (e.g., “2020 Jeep Wrangler”), and the system will pull up compatible parts, including the correct rear wiper blade size. This is a great way to cross-reference and ensure you’re getting the right part before you head to the store or place an order.

Step-by-Step: How to Replace Your 2020 Jeep Wrangler Rear Wiper Blade

Replacing the 2020 Jeep Wrangler rear wiper blade size is one of the easiest DIY maintenance tasks you can perform. It requires minimal tools and takes just a few minutes. Follow these steps for a smooth, hassle-free replacement.

Tools & Materials You’ll Need

  • New 13-inch rear wiper blade for your 2020 Jeep Wrangler
  • Clean microfiber cloth
  • Glass cleaner (optional, for cleaning the window after replacement)
  • Flat-head screwdriver or small pry tool (optional, for stubborn clips)

The Installation Process: A DIY Walkthrough

Safety first! Always ensure your vehicle is parked on a level surface with the ignition off before you begin.

  1. Lift the Wiper Arm: Gently pull the rear wiper arm away from the rear window until it locks into the upright position. Be careful not to let it snap back against the glass, which could cause damage.
  2. Locate the Release Tab/Clip: Most rear wiper blades on a 2020 Wrangler use a J-hook or a simple clip mechanism. Look for a small tab or button where the blade meets the arm. You might need to gently push or squeeze this tab.
  3. Remove the Old Blade:
    • If it’s a J-hook: Rotate the blade slightly, then slide it down the J-hook to release it.
    • If it’s a clip: Depress the tab and slide the blade off the arm. Sometimes a slight wiggle or gentle pull is needed. If it’s stubborn, a small flat-head screwdriver can help gently pry the clip open, but be careful not to damage the arm.

    Pro Tip: Place a towel or cardboard on the rear window before removing the old blade. This prevents the metal wiper arm from accidentally scratching the glass if it slips.

  4. Clean the Wiper Arm: While the blade is off, take a moment to wipe down the wiper arm with your microfiber cloth. Remove any dirt or grime that could interfere with the new blade’s fit.
  5. Install the New Blade:
    • Orient the new 13-inch blade correctly.
    • Slide the new blade onto the wiper arm. If it’s a J-hook, slide it up the hook until it clicks into place. If it’s a clip-style, push it firmly until you hear a secure click.
    • Give it a gentle tug to ensure it’s securely attached.
  6. Lower the Wiper Arm: Carefully lower the wiper arm back onto the rear window. Do not let it drop suddenly.

Post-Installation Check: Ensuring a Perfect Sweep

Once the new blade is installed, it’s time for a quick test:

  • Inspect Visually: Ensure the blade sits flush against the glass.
  • Test with Water: Turn on your Jeep’s ignition and activate the rear wiper. Use your washer fluid to wet the window. Observe the sweep. The blade should clear the water smoothly and quietly, leaving no streaks or missed spots.

If you notice any issues, double-check the installation. Sometimes a blade isn’t fully seated or is slightly misaligned. This comprehensive 2020 Jeep Wrangler rear wiper blade size guide ensures you’re ready for any weather!

Common Problems & Troubleshooting Your Rear Wiper Blade

Even with the correct 2020 Jeep Wrangler rear wiper blade size installed, you might occasionally encounter issues. Understanding common problems and how to troubleshoot them can save you time and frustration. Here are some of the most frequent complaints and our expert advice:

Streaking, Smearing, and Blurry Vision

This is the most common sign that your rear wiper blade needs attention. Streaks or a hazy film left on the window after a wipe usually indicate:

  • Worn-Out Blade: The rubber element is hardened, cracked, or torn. This is the most likely culprit.
  • Contaminated Blade: Dirt, grime, tree sap, or wax residue can build up on the blade, preventing proper contact with the glass.
  • Dirty Windshield: Sometimes, it’s not the blade but the window itself. Road grime, off-road mud, and bug guts can hinder wiper performance.

Solution: First, clean the blade thoroughly with a damp cloth and mild soap. If that doesn’t work, replace the blade. Also, give your rear window a good wash!

Squeaks, Chattering, and Annoying Noises

A noisy wiper is irritating and can signal a problem:

  • Dry Window: Wipers need moisture to glide smoothly. If you’re using them on a nearly dry window, they’ll often squeak.
  • Bent Wiper Arm: The wiper arm might be bent, causing uneven pressure on the blade.
  • Old Blade: Hardened rubber blades lose their flexibility and can chatter across the glass.
  • Incorrect Angle: The blade’s angle relative to the glass might be off.
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Solution: Ensure the window is wet. Inspect the wiper arm for any bends. Replace the blade if it’s old. Adjusting the wiper arm angle is possible but can be tricky; if unsure, a professional can help.

Wiper Arm Issues: When It’s Not Just the Blade

Sometimes, the problem isn’t with the 2020 Jeep Wrangler rear wiper blade size but with the arm itself:

  • Weak Spring: The spring in the wiper arm provides tension, pressing the blade against the glass. If this spring weakens, the blade won’t make full contact, leading to poor wiping.
  • Bent Arm: As mentioned, a bent arm can cause uneven pressure.
  • Motor Failure: If the wiper arm isn’t moving at all, or moves sluggishly, you might have a problem with the wiper motor or electrical system.

Solution: Inspect the arm for damage. Test the tension by gently pulling the arm away from the glass and releasing it; it should snap back firmly. If the motor seems faulty, it’s time to consult a professional mechanic. These issues are beyond a simple blade replacement.

Maximizing Lifespan: 2020 Jeep Wrangler Rear Wiper Blade Care Guide

You’ve installed the perfect 2020 Jeep Wrangler rear wiper blade size. Now, how do you make it last? Proper care and maintenance can significantly extend the life of your wiper blades, saving you money and ensuring consistent clear vision. These best practices are vital for any vehicle, especially for an off-roader like a Wrangler that faces diverse conditions.

Regular Cleaning Rituals

The simplest and most effective way to prolong blade life is regular cleaning:

  • Wipe Down Regularly: At least once a month, or after any particularly dirty trip, lift your wiper arm and gently wipe the rubber blade with a clean, damp cloth. Use mild soap or a dedicated glass cleaner if needed.
  • Remove Debris: Clear off any trapped leaves, dirt, or bugs from under the wiper arm and blade. This prevents scratches and uneven wear.
  • Avoid Harsh Chemicals: Don’t use strong solvents or abrasive cleaners on the rubber, as they can degrade the material.

Winter Woes & Wiper Wisdom

Winter conditions are notoriously tough on wiper blades:

  • Don’t Scrape with Wipers: Never use your wipers to clear heavy snow or ice from your rear window. Always manually clear the glass first.
  • Lift Blades in Freezing Weather: If your Jeep will be parked outside in freezing temperatures, lift the wiper arm away from the glass. This prevents the blade from freezing to the window, which can tear the rubber when you try to use them.
  • Use De-Icer: Apply de-icer spray to your window before turning on your wipers in icy conditions.

These 2020 Jeep Wrangler rear wiper blade size best practices will keep your rear view clear, even in the harshest conditions.

When to Replace: Signs It’s Time

Even with the best care, wiper blades don’t last forever. As a general rule, inspect your blades every 6 months and consider replacing them annually. However, look out for these specific signs that it’s time for a fresh 13-inch blade:

  • Streaking or Smearing: The most obvious sign.
  • Chattering or Squeaking: If cleaning doesn’t resolve it.
  • Skipping: The blade hops across the glass instead of gliding smoothly.
  • Cracked or Torn Rubber: Visually inspect the blade for any damage.
  • Reduced Visibility: If you find yourself struggling to see out the back in rain, don’t wait.

Don’t wait for total failure; proactive replacement ensures you always have optimal visibility, which is paramount for safety on and off the road.

Choosing the Best Blade: Tips for Performance & Sustainability

While the 2020 Jeep Wrangler rear wiper blade size is fixed at 13 inches, you still have choices when it comes to blade types and materials. Making an informed decision can impact performance, durability, and even your environmental footprint. Here are some 2020 Jeep Wrangler rear wiper blade size tips for selecting the perfect replacement.

Blade Types: Which One is Right for You?

Wiper blades generally come in three main types:

  • Conventional Blades: These are the classic design, with a metal frame and rubber blade. They are affordable and effective, especially in moderate weather. Many OEM rear blades are conventional.
  • Beam Blades: These are frameless, with a single piece of tensioned rubber or silicone. They offer more uniform pressure across the windshield, reducing streaking and chattering, and tend to perform better in snow and ice as they don’t have a frame to collect ice.
  • Hybrid Blades: A combination of conventional and beam, offering the aerodynamic benefits of a beam blade with the robust structure of a conventional blade. They often have a sleek, low-profile design.
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For a rear wiper, a conventional or beam blade will typically serve you well. Beam blades might offer a slight edge in extreme weather conditions due to their design.

Material Matters: Rubber vs. Silicone

The material of the wiping element plays a big role in performance and longevity:

  • Natural Rubber: Common and effective, but can harden and crack over time due to UV exposure and ozone.
  • Synthetic Rubber: Often infused with graphite or other coatings to improve durability and reduce friction. A good all-around choice.
  • Silicone Blades: These are typically more expensive but offer superior performance and lifespan. Silicone is less susceptible to UV and ozone degradation, stays flexible in extreme temperatures, and often leaves a water-repellent coating on the glass over time. For off-roaders facing harsh elements, silicone can be a worthwhile investment.

Going Green: Eco-Friendly Wiper Options

As enthusiasts who appreciate the outdoors, many of us are looking for more sustainable choices. While “eco-friendly” wiper blades are still evolving, here are some considerations:

  • Long-Lasting Blades: Investing in higher-quality, durable blades (like silicone) means less frequent replacement and thus less waste. This is a practical form of sustainable 2020 Jeep Wrangler rear wiper blade size management.
  • Recyclable Components: Some manufacturers are starting to offer blades with more easily recyclable plastic or metal components. Look for brands that mention their recycling initiatives.
  • Rubber Refills: Instead of replacing the entire blade assembly, some brands offer just the rubber refill. This significantly reduces plastic and metal waste. Check if your chosen blade design allows for refills – a truly eco-friendly 2020 Jeep Wrangler rear wiper blade size approach.

Even small choices like this contribute to a healthier planet for our adventures.

Frequently Asked Questions About Your 2020 Jeep Wrangler Rear Wiper Blade

Can I use a front wiper blade on the rear of my 2020 Jeep Wrangler?

No, it’s generally not recommended. While the length might sometimes match, front wiper blades often have different attachment mechanisms and aerodynamic designs (spoilers) that are not suitable for the rear wiper arm. Always purchase a blade specifically designed for the rear of your 2020 Jeep Wrangler.

How often should I replace my rear wiper blade?

As a general rule, inspect your rear wiper blade every 6 months and consider replacing it annually, or sooner if you notice signs of wear like streaking, chattering, or visible damage. Harsh weather conditions, frequent off-roading, and extreme temperatures can accelerate wear.

Is a premium blade worth the extra cost for the rear?

For many, yes. Premium blades, especially silicone ones, often offer superior performance, quieter operation, and significantly longer lifespan compared to basic rubber blades. For a vehicle like the Jeep Wrangler that faces diverse conditions, the investment in a high-quality blade for consistent clear visibility and less frequent replacement can be well worth it.

What if my rear wiper arm isn’t working at all?

If your rear wiper arm isn’t moving, the problem is likely not the blade itself. It could be a blown fuse, a faulty wiper motor, or an electrical issue. Check your vehicle’s fuse box first (consult your owner’s manual for the correct fuse). If the fuse is fine, it’s best to have a professional mechanic diagnose the problem.

Are there specific off-road wiper blades for the rear?

While there aren’t “off-road specific” rear wiper blades in a distinct category, opting for a durable, high-quality beam or silicone blade can offer better performance in the dust, mud, and debris often encountered off-road. Their robust construction and consistent contact with the glass help clear away tough grime more effectively.

Keep Your View Clear, Your Adventures Uninterrupted!

Maintaining your 2020 Jeep Wrangler is all about ensuring it’s ready for anything the road – or the trail – throws at it. Don’t overlook the simple yet crucial task of keeping your rear wiper blade in top condition. Knowing the correct 2020 Jeep Wrangler rear wiper blade size and how to properly care for and replace it empowers you to handle this vital maintenance yourself.

From our garage at FatBoysOffroad, we hope this guide has given you the confidence and expertise to ensure your rear view is always crystal clear. A small investment in time and a quality 13-inch blade translates directly into safer driving and more enjoyable adventures. So, grab your tools, get that blade replaced, and hit the trails with confidence!

Stay safe and stay comfortable!

Thomas Corle
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