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ACDelco Specialty Spark Plug

ACDelco Specialty Spark Plug

Part #: AC MR44T
Line: ACDelco
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Features & Benefits

Warranty: Standard : 12 Months or 12,000 Miles Whichever Occurs First

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ACDelco GM Original Equipment Iridium Spark Plugs are designed, engineered, and tested to rigorous standards, and are backed by General Motors. These Iridium Spark Plugs are a high quality replacement for many vehicles on the road today. They are our latest in spark plug technology and an exact replacement for your vehicle's original components. Iridium composition provides a high melting point and great strength, and provides excellent wear resistance and durability. These premium aftermarket replacement spark plugs are manufactured to meet your expectations for fit, form, and function. ACDelco GM Original Equipment parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. Some ACDelco GM Original Equipment parts may have formerly appeared as GM Genuine Parts (OE) or ACDelco Professional.


  • Iridium offers excellent engine idle stability and smooth performance
  • Iridium allows for small, efficient elecIridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they formtrode designs for reliable cold starting and quick acceleration
  • Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form

Specifications

Brand ACDelco
Spark Plug Thread Size 14 mm
Gap Size 0.04
Seat Type Tapered
Electrode Core Material Copper
Manufacturer Part Number MR44T
Spark Plug Reach 31/64 in.
VMRS Code 033003005
Spark Plug Seat Type Tapered
Spark Plug Hex Size 5/8 in.
Hex Size 16 mm
Spark Plug Heat Range NGK4

Safety Information

Vehicle Fitment Guide

Product Reviews