2019 Kenworth T680 Wiper Blade Sizes & Replacement Guide

Keeping a clear view of the road is critical for heavy-duty truck drivers, and having the right wiper blades on your 2019 Kenworth T680 is a matter of basic safety. Whether you are battling summer thunderstorms or winter blizzards on the highway, your wipers need to perform flawlessly.

As a parts counter expert, I've put together this comprehensive guide to help you find the correct wiper blade sizes, understand your truck's attachment style, and get those new blades installed quickly so you can get back on the road.

Quick reference

For the 2019 Kenworth T680, both the driver and passenger sides utilize the same size blades. As a Class 8 semi-truck, the T680 is not equipped with a rear wiper.

(Note: Always verify your specific wiper arm attachment before purchasing, as some fleet specifications may alter the factory hardware. OEM part numbers vary by exact build sheet; contact your local Kenworth parts counter for factory exact replacements).

Best aftermarket replacements

While you can always grab standard heavy-duty fleet blades, upgrading to premium beam-style blades can significantly improve wipe quality and longevity, especially at highway speeds. Here are the top aftermarket options across different price tiers:

• Bosch ICON: (Premium Price) These beam blades are legendary for their durability and tension spring technology, which keeps the blade perfectly contoured to your Kenworth's large, curved windshield.
• Rain-X Latitude: (Premium Price) A highly popular beam blade that applies a water-repellent coating to your windshield as it wipes, making a massive difference in heavy downpours.
• Trico Force: (Mid-to-Premium Price) Engineered specifically to handle high winds, the Trico Force features a swept-wing spoiler that prevents wind lift—perfect for the aerodynamics of a moving semi-truck.
• Michelin Stealth: (Mid-Range Price) A hybrid blade combining the durability of a traditional frame with a flexible, debris-repelling cover. Excellent for winter driving.
• PIAA Si-Tech: (Premium Price) Utilizing a unique silicone rubber compound, these flat blades resist UV degradation and ozone damage far better than standard rubber, making them highly durable for high-mileage drivers.

Attachment style

The 2019 Kenworth T680 utilizes a standard J-hook attachment for its wiper arms. This is one of the most common and robust attachment types in the industry. The wiper arm ends in a hook shape (usually a 9x3mm or 9x4mm hook on heavy-duty applications), and the blade simply slides into the crook of the hook and locks into place with a retaining clip.

How to install

Replacing the J-hook blades on your T680 is a straightforward process you can do at the truck stop or terminal:

1. Pull the wiper arm away from the windshield until it locks in the upright position. Caution: Keep a firm grip on the arm so it doesn't snap back and crack your windshield.
2. Locate the release tab on the underside of the wiper blade where it meets the hook.
3. Press the tab and firmly slide the blade down the wiper arm (toward the base of the arm) to unhook it.
4. Remove the old blade from the arm.
5. Insert the new blade into the J-hook. Slide it upward firmly until you hear and feel a distinct "click," indicating the locking tab has engaged.
6. Gently lower the wiper arm back against the windshield. Repeat for the other side.

When to replace

For over-the-road trucks like the T680, wiper blades experience extreme wear and tear. You should plan to replace your wiper blades every 6 to 12 months.

Don't wait for the calendar, though. Replace them immediately if you notice:

• Streaking or banding: Leaving lines of water in your field of vision.
• Chattering or squeaking: The blade skipping across the glass instead of sweeping smoothly.
• Physical damage: Ripped, torn, or separated rubber edges.

Need wipers swapped fast? Find a shop on Repairius.