Menu

Shop

Garage

Cart

Account

Key Specs

MFG. Part #78080G
BrandMr Gasket
See more specs

Need To Know

Quick and Easy Returns

Return Policy

Mr Gasket 78080G Details

Mr. Gasket RTV is a high quality silicone sealant that is ideal for most automotive applications. We know that other brand silicone sealants come in bright blue, red, or other colors, but the small amount that shows between the castings and gaskets stands out and doesn't look very attractive. The Mr. Gasket grey RTV blends right in and isn't noticeable next to most cast iron or aluminum engine castings. This silicone sealant is ideal for use in most applications and is resistant to oil, water, and coolant. 3 oz. tube.

Features:

  • Grey Color – Looks More Attractive than Other Colors & Blends in w/ the Color of Cast Iron & Aluminum Castings
  • For Temperatures From -85° to 500° F
  • Resists Oil, Water & Antifreeze
  • Non-Corrosive
  • Low Odor
  • Fast Curing
  • O2 Sensor Safe
  • Meets OEM Specifications
  • Ideal for Use On Valve Covers, Oil Pans, Water Pumps, Timing Covers, Thermostat Housings & Intake Manifold (End Seals & Coolant Ports)
  • Made in the USA
  • Product Type Silicone RTV
  • Size 3 oz. Tube
  • Temperature Range -85° to 500° F

Rebates

Holley IRS Sale 2026

Save 10% instantly on select products across the Holley family of performance brands during the annual Holley I.R.S.Tax Sale. Instant rebate period has been extended and now runs from February 17, 2026 through April 19, 2026.

Mr Gasket 78080G Specifications

KEY SPECS
MFG. Part #78080G
BrandMr Gasket
GENERAL
GTIN Code090127005521
Sold in QuantityEach

Ratings & Reviews

5

1 Review

5

1 reviews

5

1

4

0

3

0

2

0

1

0

Filter by Ratings

Best silicone

5.0

4 years ago

Mels

New Caney, TX

Verified

Always seals gaskets

Showing 1 of 1 reviews

Customer Impersonation Script