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Mr. Gasket

Mr. Gasket Performance Collector Gasket - 3-1/2 Inch

Fits Triangular 3-bolt Header Collector Flanges with 3.5 Inch I.D.

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Mr. Gasket Performance Collector Gasket for triangular 3-bolt header collector flanges with an inner diameter of 3-1/2 inch and a 4-7/16 inch bolt pattern. Made from Mr. Gasket Performance Exhaust material. Sold individually.


  • Made from Mr. Gasket's Performance series exhaust material
  • Sold individually

About Mr. Gasket

Using his own '57 Chevy as a rolling testbed, drag racer Joe Hrudka launched the most famous gasket company in the world more than half a century ago. Mr. Gasket is the go-to gasket source for racers with gaskets and fasteners that seal perfectly every time.

# Bolt Holes3
Bolt Hole Size3/8"
Bolt Pattern4-7/16"
Brand Mr. Gasket
Collector Diameter3.50 inch
Emission Code5
Product TypeCollector Gaskets
Quantity Per Pkg.1
WarrantyLimited 90 Day
With Bolts3
Part Number1203

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

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