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Earls Stat-O-Seal

Stat-O-Seal, 7/16" I.D., Fits 4 AN Fitting, Package Of 2

PART# 178007ERL

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The Stat-O-Seal is very simply the best sealing washer available. It consists of a synthetic rubber "O" ring mechanically locked to the I.D. of an aluminum washer. When tightened, the "O" ring is compressed, forcing the sealing surfaces around the bolt shank. They will form a positive seal over a temperature range of -85° to +450° F. They provide the advantages of an "O" ring type seal without the necessity of machining "O" ring grooves into the part. In any application where you are now using a copper or aluminum sealing washer, the Stat-O-Seal will do a better job.


  • Best Sealing Washer Available
  • Synthetic Rubber O-Ring
  • Mechanically Locked
  • O-Ring Compresses
  • Forces Sealing Surfaces
  • No Machining Of Grooves


Emission Code5
Fitting Size#4 AN
MaterialSynthetic Nitrile O-Ring in Aluminum
O-Ring MaterialNitrile
Product LinePremium
Product TypeAccessory
Quantity Per Pkg.Two
Washer I.D.7/16 Inch
Washer O.D.0.76 Inch
Part Number178007ERL



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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