Mr Gasket Collector Gaskets

Copper - 3"

PART# 7177C

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Mr. Gasket copper seal collector gaskets are made from "Dead Soft" solid Copper .043 in thick. This gasket incorporates .051 in embossment around the port to seal irregular surfaces. Designed for high-performance street, drag race, oval track and turbo-charged (extreme heat) applications.


  • Withstands Extreme Heat
  • Conforms to and seals minor surface irregularities.
  • Easy Removal For Disassembly
  • Provides excellent sealing and durability.


# Bolt Holes3
Bolt Hole Size3/8"
Bolt Pattern3-7/8"
BrandMr. Gasket
Collector Diameter3 inch
Emission Code3
Product TypeCollector Gaskets
Quantity Per Pkg.2
WarrantyLimited 90 Day Warranty
Part Number7177C


This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

Warranty Information

Limited 90 Day Warranty: See Details
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        *Free Shipping & Handling only offered to the contiguous US on orders over $100.

        Some parts are not legal for use in California or other states with similar regulations.