Truck Cap Door Seal

Truck Cap Door Seal

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

This item is purchased by the foot. Unlike other companies that require you to buy more than you require. You buy the exact quantity you need. No overage.

Quick and Easy Installation

Installing this rubber boot is easy and can be done with few tools. Just snap the seal firmly onto the thin wall of the window or pass through opening. This provides a weatherproof connection between the two units. Regardless of whether you're off-roading, this seal blocks debris and maintains a dry space during your journey.

Universal Fit: Compatible Rubber Seals for Trucks and Rigs

This rubber boot seal is widely used in cab pass-through conversions. It's suitable for most mini trucks. Whether you're upgrading a camper shell or building a DIY rig, this seal offers broad fitment and dependable performance for your cab connection project.

Truck Cap Door Seal Features and Benefits

Feature Benefit Use Case
UV & Weather Resistant Withstands sun, rain, and temperature changes without cracking Long-term durability for vehicles stored outdoors
Forgiving Fit Can accommodate minor mismatches in height and width Useful for older vehicles or hand-cut openings
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

  • How long does an accordion boot last?

    With proper installation and care, EPDM accordion boots can last for years under normal driving conditions.

  • What is the minimum corner radius I can use?

    The recommended minimum radius for corners is 1 inch. Tighter corners may cause the truck cap door seal to bunch or kink.

  • 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.