8 Fairfax St SE
NAPA Auto Parts Genuine Parts Company
8 Fairfax St SE
Leesburg,  VA  20175
(703) 777-2055
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Store Hours
Mon-Fri:7:30 AM-7:00 PM
Sat:8:00 AM-5:00 PM
Sun:9:00 AM-5:00 PM
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Spark Plug - E3

Spark Plug - E3

Part #: EEE E346
Line: E3 Spark Plugs

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Features & Benefits

Warranty: Standard : 5 Years or 100,000 Miles Limited Warranty. See Manufacturer's Written Warranty.


Power Improved By An Average Of 6% In Typical Operating Ranges.

  • Faster Growing Flame Kernal Converts More Fuel To Energy With Less Waste
  • Creating Fuel Efficiencies.
  • A More Complete Burn Of The Fuel Results In Fewer Emisions And Less Carbon Deposits.
  • E3 Spark Plugs Are Pre-Gapped At The Factory To Meet O.E. Requirements And Cannot Be Adjusted.
  • The Unique Patented Electrode Configuration Of E3 Spark Plugs Increase The Amount Of Combustion Pressure Created During Each Power Stroke Of An Engine.
  • The Increased Pressure Results In A Marked Increase In Power Output, Fuel Efficiency, And Reduced Emissions In All Gasoline Engines.
  • E3’s Diamondfire Edge To Edge Electrode Provides Maximum Performance With Increased Efficiency, And A Faster More Complete Burn.


Manufacturer Part Number E3.46
Spark Plug Reach .750 in.
VMRS Code 033003005
Spark Plug Seat Type Gasket
Quality Level Better
Brand E3
Spark Plug Thread Size 14 mm
Gap Size .040
Seat Type Flat
Electrode Core Material Copper
Manufacturer E3 Spark Plugs
Spark Plug Hex Size 13/16 in.
SDS Required No
Hex Size 13/16 in

Safety Information

Vehicle Fitment Guide

Product Reviews