Rubber Truck Cap Seal
How to Choose the Right Rubber Boot Seal
You can obtain rubber boot material for your special project. This seal is manufactured from resilient EPDM synthetic rubber substance and incorporates a bendable spring steel clip for fastening to any rim. This material is available by the foot. To specify how much you need measure the length encircling your cab opening. You have three options of rubber to make use of for sealing your cabs together.
Quick and Easy Installation
Installing this rubber boot is easy and requires minimal tools. Just attach the seal firmly onto the edge of the window or pass through opening. This creates a tight connection between the two units. Whether you're traveling, this seal blocks moisture and maintains cabin integrity during your journey.
Universal Fit: Compatible Rubber Seals for Trucks and Rigs
This rubber boot seal is often used in truck modifications. It's fits most full-size trucks. Whether you're installing a camper shell or building a bespoke rig, this seal offers universal fitment and dependable performance for your cab connection project.
Rubber Truck Cap Seal Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| Made in the USA | High manufacturing standards and local support | Ideal for buyers who value American-made products |
| Watertight Design | Keeps moisture and dust out, even in rough outdoor environments | Protects interior from water, wind and dust |
| Trusted by Pros and DIYers | Field-tested by thousands in real-world applications | Confidence in product from verified reviews and installs |
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
- Can I keep my sliding windows and still use a rubber truck cap seal?
Unfortunately, no. The slider windows must be removed because the rubber truck cap seal requires a clean flange or wall to attach. Sliders block access to this area.
- Can I order a sample of the rubber truck cap seal ?
Yes, you can order a sample pack that includes all boot types. It’s a great way to test fit and feel before committing to a full-length order.
- Will one of these work on both sliding windows on truck & cap? I don't want to remove either sliding window.
In order for the boot to attach to the vehicle there must be some sort of thin wall or flange. Keeping the slider window will cover any flange or thin wall. In short you will not be able to use any or the boots if you keep the sliding windows in place as there will be no mechanical method to install the boot.