Truck Capper Window Seal
How to Choose the Right Rubber Boot Seal
You can buy rubber boot material for your special project. This seal is extruded from durable EPDM synthetic rubber compound and has a pliable spring steel clip for affixing to any rim. This material is sold by the foot. To determine how much you need measure the distance encircling your cab opening. You get several alternatives of rubber to employ for waterproofing your cabs together.
Tips for Getting the Right Fit
To determine how much you require measure the length around your cab opening. It is imperative that both openings are exactly the matching size. Make sure to measure the opening before ordering. Every installation is unique.
Why EPDM Rubber Is the Best Choice for Long-Lasting Seals
The EPDM rubber seal is crafted to withstand severe conditions such as sunlight. It's perfect for both weekend getaways. Compared to standard seals, this material lasts longer. It's a smart investment for anyone looking to upgrade their truck cab connection with a dependable sealing solution.
Truck Capper Window Seal Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| Compressed and Expanded Flex | Adapts to body movement and misalignments | Maintains seal during travel, loading, or frame shifts |
| Urethane Adhesive Compatible | Allows permanent seal when needed for high-stress areas | Used in high-vibration or heavy-use applications |
| UV & Weather Resistant | Withstands sun, rain, and temperature changes without cracking | Long-term durability for vehicles stored outdoors |
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.
$7.95 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
- What if the camper shell opening is larger than my truck window?
If the shell opening is larger, the truck capper window seal may not work. You’ll either need to modify the opening or consider a compression boot instead, which is more forgiving in such situations.
- 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 requires a clean flange or wall to attach. Sliders block access to this area.
- Would I need to use a silicon sealant to make sure the boot would not leak?
No, you do not need to use any additional sealant when installing the rubber boot.