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ACDelco GM Original Equipment Iridium Spark Plug

ACDelco GM Original Equipment Iridium Spark Plug

Part #: AC 41993
Line: ACDelco
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Features & Benefits

Warranty: Standard : 7 Year Unlimited Mileage (Excludes High Performance and Non-Automotive usage)

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ACDelco Professional Iridium Spark Plugs Are The High Quality Replacement Ideal For Many Vehicles On The Road Today. They Are Our Latest In Spark Plug Technology & An Exact Replacement For Your Vehicle’s Original Components. Iridium Composition Provides A High Melting Point & Great Strength, & Provides Excellent Wear Resistance & Durability. These Premium Aftermarket Replacement Spark Plugs Are Manufactured To Meet Your Expectations For Fit, Form, & Function.


  • Iridium is the latest in spark plug technology and is an exact replacement for vehicles’ original components
  • Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability
  • Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance
  • Three Piece Fired in Suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics
  • Iridium plugs are laser-welded which provides precision welds, reduces excess debris and wear rate, thus increasing durability
  • Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional
  • ACDelco GM Original Equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.
  • GM Engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle
  • GM regularly updates production and service part designs to integrate new materials and technologies

Specifications

Manufacturer Part Number 41-993
Spark Plug Reach 17.5 mm
VMRS Code 033003005
Spark Plug Seat Type Gasket
Quality Level Best
Spark Plug Heat Range NGK4
Brand ACDelco
Spark Plug Thread Size 14 mm
Gap Size 0.06
Seat Type Gasket
Electrode Core Material Iridium
Spark Plug Hex Size 16 mm
Hex Size 16 mm

Safety Information

Vehicle Fitment Guide

Product Reviews