2018 GMC Sierra 2500HD — Wiper Blade Sizes & Guide

Replacing the wiper blades on your 2018 GMC Sierra 2500HD is one of the easiest and most important maintenance tasks you can perform to ensure clear visibility in rain, sleet, or snow. Below, you will find all the details you need regarding blade lengths, attachment types, and our top aftermarket recommendations to keep your heavy-duty truck ready for the elements.

Quick reference

Here is the essential sizing and attachment information for your 2018 GMC Sierra 2500HD. Note that because this is a pickup truck, it does not come equipped with a rear wiper blade.

Note: We advise checking with your local GM parts counter for the most up-to-date OEM part numbers, as GM frequently supersedes part numbers.

Best aftermarket replacements

If you prefer to upgrade to premium aftermarket wiper blades rather than heading to the dealership, the 2018 GMC Sierra 2500HD is compatible with several top-tier brands. These beam-style and hybrid blades offer excellent all-weather performance.

• Bosch ICON: (Premium Price Tier) Widely considered the gold standard for beam blades. They feature a specialized rubber compound that resists cracking and tearing, offering exceptional longevity and a clean, streak-free wipe.
• Rain-X Latitude: (Mid-to-High Price Tier) These beam blades come pre-treated with Rain-X water repellent, which applies a hydrophobic coating to your windshield as they wipe, making water bead up and roll away.
• Trico Force: (Mid Price Tier) Engineered with a swept-wing spoiler, these blades are designed to maximize downward pressure, preventing wind lift at highway speeds.
• Michelin Stealth: (Mid Price Tier) A hybrid blade design that combines the aerodynamic cover of a beam blade with the flexibility and structural support of a traditional frame blade.
• PIAA Si-Tech: (Premium Price Tier) Silicone-based blades that are incredibly durable against UV rays and temperature extremes. Like Rain-X, they leave an active silicone coating on the glass to repel water.

Attachment style

Your 2018 GMC Sierra 2500HD utilizes a Push-button (also known as top-button) attachment arm. Unlike the older J-hook style, the push-button design sits flush with the arm and provides a very secure, low-profile connection that improves aerodynamics.

How to install

Swapping the wiper blades on your Sierra takes only a few minutes.

1. Lift the wiper arm: Carefully lift the wiper arm away from the windshield until it locks into its upright position.
2. Remove the old blade: Locate the square button on the top of the wiper blade connector. Press the button down firmly, and pull the blade straight out and away from the wiper arm.
3. Prepare the new blade: If you are using an aftermarket blade, ensure you have the correct push-button adapter installed on the blade (refer to the instructions in the packaging).
4. Attach the new blade: Slide the new wiper blade connector into the wiper arm housing until you hear a distinct "click."
5. Test: Gently lower the arm back onto the windshield. Turn on the ignition and test the wipers with washer fluid to ensure they are secure and wiping properly.

When to replace

For optimal safety and visibility, industry experts recommend replacing your wiper blades every 6 to 12 months. Your 2018 GMC Sierra 2500HD may need new blades sooner if you frequently drive in harsh weather conditions or leave your truck parked in direct sunlight. Look out for the following signs of wear:

• Streaking or smearing water across the glass.
• Chattering or skipping noises as the blade moves.
• Visible cracks, tears, or missing chunks in the rubber squeegee.
• Bent or broken plastic frames.

Need wipers swapped fast? Find a shop on Repairius.