How to Install a LEER HF650M Tonneau Cover
Jul 30 2025
Learn how to install the LEER HF650M Tonneau Cover from LEER. This hard-folding, four-panel, flush-mount cover delivers a sleek, low-profile look while providing enhanced security, weather protection, and everyday convenience for your truck bed. Designed for easy, no-drill installation, the HF650M is built with durable, lightweight materials that stand up to the elements. It features LEER's exclusive CYNC Latch System, allowing you to open the cover from either side of the truck with one hand, making access faster and more efficient. Whether you're hauling gear, protecting valuable tools, or simply upgrading your truck's look, the LEER HF650M is a smart, reliable solution.
LEER HF650M Installation Guide
Tools Included in Packaging
- 2.5mm Allen Wrench
- 5mm Allen Wrench
Installation Steps for the LEER HF650M Tonneau Cover
- Prepare Your Truck Bed
- Make sure the bed rails and tailgate area are clean and free of debris
- Remove any old tonneau cover hardware if applicable
- Installing the Side Rails
- Place the side rails along the top inside edges of your truck bed.
- Make sure that the rail notch is flush, and you are using the correct side raild
- Installing the Clamps
- Use three evenly spread out locations to place clamps inside the bed channel rail
- Hand-tighten all clamps until contact is made
- Use 5mm Allen Wrench to tighten screws
- Once tighten you may remove the flower nut
- Pro Tip: Check that rails are level and flush with the bed
- Installing the Cover
- Place the folded cover on the front of the bed near the cab
- Ensure the front key holes are aligned, and repeat for the opposite side
- Align the cover so it fits squarely between the rails
- Adjust as Needed
- Close the tailgate and check alignment
- If needed, adjust the screws on tie down loop and latch locator so you can shift the cover
- Secondary Latch System
- Once the cover is square attach the secondary tie down for added security
- Installing Prop Rods
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Attach the fixed-end ball fitting "A" of the prop rod to the prop rod base installed on the panel. These will remain here while the cover is in an open or closed position.
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Place the arm of the prop rod into the prop rod clip "C" for the closed position.
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Place the arm of the prop rod into the ball stud "A" for the open position.
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- Final Checks
- Check all clamps and hardware for tightness.
- Make sure the cover opens, closes, and latches smoothly.
- Check for any gaps that could let in water.