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7/8"–2.5" Rubber Hole Plugs Compression Fit Plug Firewall Auto – Choose Size

Description

These rubber hole plugs are designed for compression-fit installation in thick
panels where secure retention, vibration control, and environmental protection
are required. Sold by individual size selection, each plug installs quickly
with a push-in fit—no tools, screws, or adhesives needed. Ideal for sealing unused
holes in automotive firewalls, marine panels, and industrial enclosures.

Specifications

Available Hole Sizes: 7/8" to 2.5" (22.2 mm to 63.5 mm) – choose required size
Material: Silicone rubber
Durometer: 50 Shore A
Temperature Range: -40°C to 200°C (-40°F to 392°F)
Installation Type: Push-in compression fit stem
Use Environment: Indoor / Outdoor

Common Applications

Automotive firewalls and body panels
Marine bulkheads, consoles, and deck panels
Truck, trailer, and commercial vehicle panels
Motorcycle and powersports frames
Fabrication, enclosures, and general panel sealing

Hole Size	Top Diameter	Flange Thickness	Length of Stem
7/8”	1 1/8”	1/8”	.350
15/16”	1.200	1/8”	.350
1”	1.200	1/8”	.350
1 1/8”	1 3/8”	1/8”	3/8”
1 1/4"	1 1/2"	1/8”	3/8”
1 3/8”	1 11/16”	1/8”	3/8”
1 1/2"	1 3/4"	1/8”	3/8”
1 7/8”	2 1/8”	.140	1/2"
2”	2 1/4”	.140	1/2"
2 1/2”	2 3/4"	.155	.600

Package Options

• Multiple sizes available – sold individually, not an assortment.
• Please use the drop-down box to select the required size.
• Second quantity option offers best overall value.

Service

Ships from California
99.9 percent positive feedback
51,000 buyers' reviews
Free shipping with tracking included
10 percent discount on 2 or more packs

Product Specs

Item Thickness: Various
Shape: Round
MPN: NA
Item Length: NA
Gauge: NA
Screw Size: NA
Drive Style: Hand
Unit Type: Unit
Mandrel Material: NA
Grip Range: Various
Number in Pack: Various pack sizes available
Unit Quantity: 1

We ship every day Monday - Friday.

PayPal is the preferred payment method.

We hope you will love your purchase, however if you need to return it, we have a 60 day return policy.

Featured Products

These compression-fit rubber hole plugs provide a durable solution for sealing
unused panel openings in automotive, marine, and industrial environments.
Sold by individual diameter, they allow precise size selection while eliminating
the need for fasteners or hardware. The flexible silicone rubber construction
absorbs vibration, resists heat, moisture, and weather exposure, and installs
securely in thick panels, making them ideal for firewall plugs, marine bulkhead
seals, knockout hole covers, and general panel blanking applications.