Truck Capper Window Seal
How to Choose the Right Rubber Boot Seal
You can acquire rubber boot material for your special project. This seal is manufactured from hard-wearing EPDM synthetic rubber substance and uses a flexible spring steel clip for affixing to any flange. This material is available by the foot. To find how much you need measure the distance around your cab opening. You have 3 choices of rubber to apply for sealing your cabs together.
Quick and Easy Installation
Installing this rubber boot is hassle-free and requires minimal tools. Just snap the seal firmly onto the rim of the window or pass through opening. This creates a tight connection between the two units. Regardless of whether you're off-roading, this seal blocks dust and ensures a dry space during your journey.
Don't Settle for Less: Upgrade to a Seal Built for the Road
Choosing the right seal is key for your vehicle project. This rubber boot stands out due to its top-grade construction and real-world reliability. We take pride on providing products that exceed your expectations for long-term performance. Don't settle for flimsy seals, upgrade to one that's built to last.
Truck Capper Window Seal Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| Trusted by Pros and DIYers | Field-tested by thousands in real-world applications | Confidence in product from verified reviews and installs |
| Flexible Bellows Design | Absorbs vibration and road movement without cracking | Great for off-road and long-haul driving |
| 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 boot stretch or compress?
Yes, the accordion-style folds allow for both stretching and compression, ideal for movement and flex between vehicle sections.
- Can I keep my sliding windows and still use a = truck,capper,window,seal ?>?
Unfortunately, no. The slider windows must be removed because the truck capper window seal equires a clean flange or wall to attach. Sliders block access to this area.
- Can I install a truck capper window seal in cold weather?
Yes, but it's best to warm the truck capper window seal slightly beforehand. Cold temperatures may make the rubber less flexible and harder to manipulate during installation.
