Cap Shell Slider Windows
How to Choose the Right Rubber Boot Seal
You can acquire rubber boot material for your special project. This seal is extruded from resilient EPDM synthetic rubber substance and integrates a pliable spring steel clip for fastening to any rim. This material is available by the foot. To determine how much you need measure the length encircling your cab opening. You get three alternatives of rubber to make use of for waterproofing your cabs together.
Tips for Getting the Right Fit
To determine how much you want measure the length around your cab opening. It is essential that both openings are accurately the matching size. Make sure to measure the opening before ordering. Every installation is different.
Why EPDM Rubber Is the Best Choice for Long-Lasting Seals
The EPDM rubber seal is engineered to survive extreme conditions such as UV exposure. It's perfect for both off-grid builds. Compared to generic seals, this material offers more protection. It's a solid choice for anyone looking to protect their truck cab connection with a dependable sealing solution.
Cap Shell Slider Windows Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| Adapts to Slightly Uneven Openings | Flexible enough to seal even when openings aren’t perfectly aligned | Even though it is best that the opening match exactly there is some wiggle room to make minor adjustments for custom truck and canopy installations |
| Embedded Steel Spring Clip | Maintains a secure grip on flanges without adhesive | Stable connection between cab and shell |
| Cleanable Surface | Easy to wipe down or blow clean for reinstallation | Using mild soap and water for cleaning maintenance |
Order Form
To begin your order just enter the total amount of feet of boot material you need in the appropriate box next to the item you want to order below. Check your entries then click on the "Order Now " button.
Accordion Boot - Part Number 541

The accordion boot is designed for cabs where you take out the truck window. This product works best with fiberglass shells that are 1/8" to 3/16" thick. Please note that both openings must be exactly the same size for this boot to fit properly.

$8.95 per foot
In Stock
Order 541
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Compression Boot - Part Number 540

Use this seal when you leave the rear slider window in the truck. This product works best with fiberglass shells that are 1/8" to 3/16" thick. You will also use this boot if the opening in the fiberglass shell is much larger than the opening in your truck.

$7.95 per foot
In Stock
Order 540
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Extra Wide Accordion Boot - Part Number 543

The extra wide accordion boot is designed applications where you have a large gap between the space you want to seal. This product works best with fiberglass shells or sheet metal flange that are 1/8" to 3/16" thick. Both openings must be exactly the same size for this boot to fit properly.
$11.50 per foot
In Stock
Order 543
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Accordion Boot - Ultra Wide 10" Part Number 544

The Ultra Wide 10 Inch accordion boot is designed for very wide gaps between cabs.. This product works best with fiberglass shells that are 1/8" to 3/16" thick. Please note that both openings must be exactly the same size for this boot to fit properly.
$13.90 per foot
In Stock
Order 544
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Accordion Boot 15 - Part Number 546

The Accordion Boot 15 is designed applications where you have a large gap between the space you want to seal. This product works best with fiberglass shells or sheet metal flange that are 1/8" to 3/16" thick. Both openings must be exactly the same size for this boot to fit properly.
$16.50 per foot
In Stock
Order 546
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Compression Bulb Seal - Part Number 545

Use this seal when you leave the rear slider window in the truck. This product works best with fiberglass shells that are 1/8" to 3/16" thick. You will also use this boot if the opening in the fiberglass shell is much larger than the opening in your truck.
$8.25 per foot
In Stock
Order 545
- Enter the total amount of feet of boot material you need in the text box
- Check your entries, then click on the "Order Now" button.
Frequently Asked Questions
- Does the cap shell slider windows require glue to install?
No glue is required. The cap shell slider windows has a spring clip embedded in the EPDM rubber that clamps onto a thin flange. You can optionally glue the seam using cyanoacrylate (SuperGlue), but avoid petroleum-based adhesives.
- Will the cap shell slider windows work with thin metal or wood frames?
Yes, but there must be a flange no thicker than 3/16". For wood or thick materials, add a metal strip (like aluminum flat bar) around the opening for the cap shell slider windowsto grip.
- What is the minimum corner radius I can use?
The recommended minimum radius for corners is 1 inch. Tighter corners may cause the cap shell slider windows to bunch or kink.
