Truck Cap Topper Sliding Window Boot
How to Choose the Right Rubber Boot Seal
You can acquire rubber boot material for your special project. This seal is extruded from heavy-duty EPDM synthetic rubber substance and integrates a flexible spring steel clip for fastening to any flange. This material is available by the foot. To specify how much you need measure the distance encircling your cab opening. You have three options of rubber to use for waterproofing your cabs together.
Quick and Easy Installation
Installing this rubber boot is straightforward and can be done with few tools. Just secure the seal tightly onto the thin wall of the window or pass through opening. This ensures a weatherproof connection between the two units. Even if you're camping, this seal prevents debris and helps temperature control during your journey.
Don't Settle for Less: Upgrade to a Seal Built for the Road
Choosing the right seal is crucial for your vehicle project. This rubber boot stands out due to its high-quality construction and real-world reliability. We pride ourselves on providing products that exceed your demands for long-term satisfaction. Don't settle for low-end seals, upgrade to one that's made for the road.
Truck Cap Topper Sliding Window Boot Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| Custom Length | Get the exact amount you need with no waste or shortages | Great for DIY box truck or custom overland builds |
| Prevents Heat and Sound Transfer | Improves cab comfort by blocking wind and road noise | Useful for sleepers and audio builds |
| Embedded Steel Spring Clip | Maintains a secure grip on flanges without adhesive | Stable connection between cab and shell |
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
- How do I measure for a truck cap topper sliding window boot?
To install a , use a flexible tape to measure the full perimeter of the opening. Add 1–2 inches for adjustment or overlap.
- Can I cut the truck cap topper sliding window boot to fit around a third brake light?
No, cutting is not recommended. Instead, remove the brake light and cover the hole, or change how the boot is mounted if you need to preserve the light.
- What do you recommend is the smallest radius cut out in the corners of the opening?
The recommended minimum radius is 1 inch for the boot for corners.