Alltrade Supply Inc

Quality products since 2014
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3/4" Silicone Rubber Hole Plug Thick Panel Push-In Auto Body Firewall Seal

Each order includes 5 plugs. Save when ordering multiple packs.

Description

These 3/4" silicone rubber hole plugs are used to seal unused holes
in auto body panels, firewalls, and sheet metal during repair work.

The compression stem provides a secure push-in fit.
The flat head creates a clean, finished surface after installation.

Silicone rubber resists heat, vibration, and weather exposure.
Ideal for automotive repair, firewall sealing, and restoration work.

Material properties are provided for general reference only.
Buyers are responsible for verifying suitability for their application.

Specifications

Hole fit: 3/4" (19 mm)
Head diameter: 1" (25 mm)
Stem length: 7/16" (11 mm)
Flange thickness: 1/8" (3 mm)
Material: Black silicone rubber
Hardness: 60–65 Shore A
Design: Compression stem, snap-in fit
Head style: Flat / flush mount
Function: Hole sealing, vibration damping
Surface types: Steel body panels, sheet metal
Use environment: Indoor / outdoor light industrial
Operating temperature: -40 °C to 200 °C (-40 °F to 392 °F)
Pack count: 5 pieces per pack

Key Uses

Auto body panel hole sealing
Firewall and bulkhead repairs
Classic car restoration work
Motorcycle and powersports panels
Sheet metal fabrication and repair
Engine bay wire pass-through sealing
Equipment panel hole closure

Service

Ships from California, USA warehouse
Same-day handling on most weekday orders
Tracking uploaded quickly after shipment
51,000 buyers' reviews
99.8 percent positive feedback
10 percent discount on 2 or more packs
Free shipping with tracking included

Product Specs
Install method:: Tool-free press installation
Shape: Round
MPN: does not apply
Industry / Trade: Automotive Repair, Auto Body, Powersports
Item Length: 7/16" (11 mm)
Fits hole size: 3/4" (19mm)
Unit Type: Unit
Function:: Hole sealing; vibration damping
Drive Style: Push-in / compression stem
Installation method: Press fit, no screws or fasteners required
Number in Pack: 5

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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.

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

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

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

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

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

Featured Products

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These 3/4" (19 mm) silicone rubber hole plugs are used to seal unused holes in automotive body panels, firewalls, and sheet metal assemblies. The 1" (25 mm) head provides full surface coverage while the 7/16" (11 mm) compression stem creates a secure push-in fit for repair and restoration work.

The silicone material resists heat, vibration, and environmental exposure, helping prevent dust, moisture, and debris intrusion while reducing panel vibration. Common in classic car restoration, engine bay sealing, and automotive panel repair.

Used by auto body technicians, restoration shops, and powersports repair professionals for reliable hole sealing in metal panels and enclosures. Designed for MRO teams and technicians working in inch and metric systems.