Truck Cap Window Seal

Truck Cap Window Seal

Only Buy What You Need - Rubber Boot Material Sold by the Foot

This item is bought by the foot. Unlike other organizations that oblige you to buy more than you need. You purchase the correct quantity you require. No waste.

Quick and Easy Installation

Installing this rubber boot is hassle-free and can be done with few tools. Just attach the seal tightly onto the flange of the window or pass through opening. This creates a tight connection between the two units. Even if you're camping, this seal prevents dust and helps a dry space during your journey.

Universal Fit: Compatible Rubber Seals for Trucks and Rigs

This rubber boot seal is often used in cab pass-through conversions. It's designed for most compact trucks. Whether you're repairing a camper shell or building a bespoke rig, this seal offers universal fitment and dependable performance for your cab connection project.

Truck Cap Window Seal Features and Benefits

Feature Benefit Use Case
U-Channel Orientation Consistency Both U-shaped edges face the same way for easier installation Helps avoid confusion during install, especially for beginners
Cleanable Surface Easy to wipe down or blow clean for reinstallation Using mild soap and water for cleaning maintenance
Fast, Reliable Shipping Quick turnaround when time-sensitive installs are needed Helpful for last-minute road trip or show prep

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

Accordion Boot

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.

How Accordion Boot Works Animation

$8.95 per foot

In Stock

Order 541

  1. Enter the total amount of feet of boot material you need in the text box
  2. Check your entries, then click on the "Order Now" button.

Compression Boot - Part Number 540

Compression Boot

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.

How Compression Boot Works Animation

$7.95 per foot

In Stock

Order 540

  1. Enter the total amount of feet of boot material you need in the text box
  2. Check your entries, then click on the "Order Now" button.

Extra Wide Accordion Boot - Part Number 543

Extra Wide Accordion Boot

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

  1. Enter the total amount of feet of boot material you need in the text box
  2. Check your entries, then click on the "Order Now" button.

Accordion Boot - Ultra Wide 10" Part Number 544

Accordion Boot 10 inch wide

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

  1. Enter the total amount of feet of boot material you need in the text box
  2. Check your entries, then click on the "Order Now" button.

Accordion Boot 15 - Part Number 546

Extra Wide Accordion Boot

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

  1. Enter the total amount of feet of boot material you need in the text box
  2. Check your entries, then click on the "Order Now" button.

Compression Bulb Seal - Part Number 545

Compression Bulb Seal

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

  1. Enter the total amount of feet of boot material you need in the text box
  2. Check your entries, then click on the "Order Now" button.

Frequently Asked Questions

  • Does the truck cap window seal require glue to install?

    No glue is required. The truck cap window seal has a spring clip embedded in the EPDM rubber that clamps onto a thin flange. You can optionally glue the seam using cyanoacrylate (SuperGlue), but avoid petroleum-based adhesives.

  • What if I don't like something?

    Your complete satisfaction is very important to us! We guarantee that if you do not like your merchandise, or it is broken, you can return it and get your money back. This 100% satisfaction money-back guarantee is good for 30 days.

  • I have a truck with a wood framed utility box and would like join the cab and box using the accordion boot. How to I attach the boot?

    You will not be able to attach the boot material to the wood, It is too thick. The best way to remedy this is to add a flange to the box. This could be done with steel or aluminum flat bar, or something similar (i.e. sheet metal, fiberglass), installed around the perimeter of the opening to allow the boot to attach to the box