Truck Cap Back Window Gasket

Truck Cap Back Window Gasket

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

This material is sold by the foot. Unlike other businesses that oblige you to buy more than you need. You get the exact quantity you need. No overage.

Quick and Easy Installation

Installing this rubber boot is simple and requires minimal tools. Just snap the seal tightly onto the edge of the window or pass through opening. This provides a weatherproof connection between the two units. Whether you're traveling, this seal keeps out moisture and maintains temperature control during your journey.

Why EPDM Rubber Is the Best Choice for Long-Lasting Seals

The EPDM rubber seal is developed to handle extreme conditions such as UV exposure. It's tailored for both commercial fleets. Compared to cheaper seals, this material performs better. It's a smart investment for anyone looking to protect their truck cab connection with a dependable sealing solution.

Truck Cap Back Window Gasket 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
EPDM Sponge Rubber Construction Flexible, resilient seal that withstands weather and aging Ideal for trucks, RVs, and sleeper cabs exposed to elements
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

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

  • What type of rubber is used in your boots?

    Our boots are made from high-quality black EPDM rubber, known for its durability, UV resistance, and flexibility across extreme temperatures.

  • How thick is the accordion boot rubber?

    The thickness of the rubber it is about 3/32" thick. (2.38mm).

  • I have a truck that I want to install a camper shell on. The shell has a slider and I will need to remove the rear cab window. Is there a procedure when using a boot that insures a watertight seal?

    To insure a water tight seal you should consider the accordion boot. In order to use the accordion boot there are a few condition that need to be met.

    • 1) Both opening must be the exact same size
    • 2) there must be some sort of thin wall or flange to attach the boot. This can be the fiberglass wall or pinch weld around the window opening.
    • 3) Both windows will need to be removed.
    In regards to condition 1, both opening must be exactly the same you can run into an issue if the camper shell opening is larger than the trucks window opening. You may need to build up the fiberglass. We do offer the compression boot as a concession for situations where the accordion boot will not work.