Truck Cap Sliding Window Gasket
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 substance and has a bendable spring steel clip for affixing to any rim. This material is sold by the foot. To decide how much you require measure the length around your cab opening. You get 3 options of rubber to make use of for sealing 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 exactly the matching size. Make sure to measure the opening before ordering. Every installation is different.
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 delivers due to its industrial-strength construction and customer-approved reliability. We take pride on providing products that meet your needs for long-term performance. Don't settle for inferior seals, upgrade to one that's engineered for adventure.
Truck Cap Sliding Window Gasket Features and Benefits
| Feature | Benefit | Use Case |
|---|---|---|
| Powder-Coated Friendly Channel | Seals well even on painted or coated surfaces | Ensures compatibility with modified or custom trucks |
| Reusable with Careful Removal | Can be reinstalled without damage if no adhesive used | Ideal for resprays, upgrades, or camper swaps |
| Audio Blow-Through Compatible | Perfect for stereo mods and custom subwoofer enclosures | Used in high-performance truck audio builds |
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 long will my truck cap sliding window gasket last?
EPDM rubber is extremely durable, UV-resistant, and built to last for years. Proper installation can extend its lifespan significantly.
- Can the truck cap sliding window gasket be painted?
We only sell black boots, but EPDM rubber can be painted using an acrylic roof coating rated for EPDM. Avoid latex and petroleum-based paints.
- What do you charge for shipping?
Here are the various charges for shipping both Domestic and International
Part 540 Compression Boot - Flap $17.45 Part 541 Accordion Boot $17.45 Part 543 Wide Accordion Boot $24.35 Part 544 Extra Wide Accordion Boot $24.35 Part 545 Compression boot - Bulb $17.45 Canada $76.95 International $110.00