NGK IX Iridium Spark Plug 6441 - Read 2 Reviews on NGK IX Iridium #6441

NGK IX Iridium Spark Plug

Vehicle Specific

Part Number: 6441
Alternate Part Number: ZFR6FIX-11
Features & Benefits

NGK Iridium IX spark plugs are designed specifically for the performance enthusiast. Iridium IX spark plugs offer extreme ignitibility, improved throttle response and superior anti-fouling.

  • Fine wire Iridium center electrode ensures high durability and a consistently stable spark
  • Iridium alloy has an extremely high melting point, perfect for today's high-performance engines
  • Trivalent metal plating has superior anti-corrosion and anti-seizing properties
  • Special taper-cut ground electrode shape to allow for more area for flame expansion
Product Details
Part Number: 6441
Weight: 0.11lbs
Center Electrode Core Material: Copper
Center Electrode Design: Fine Wire
Center Electrode Tip Material: Iridium
Drive Size: 5/8 in
Gap - Factory Preset: 1.1 mm = 0.044 in
Ground Electrode Configuration: Single
Ground Electrode Design: Tapered
Ground Electrode Tip Material: Nickel Alloy
Insulator Material: Ceramic
Insulator Type: Projected
Manufacturer Heat Range Number: 6
Package Quantity: 1
Reach (in): 0.75
Resistor: Yes
Seat Style: Gasket
Short Style: No
Thread Size: 14 mm
Shipping Information: Overnight and Two Day shipping are not available for PO Box, APO/FPO/DPO or US Territory addresses.
Rebate details: NG1007 AutoZone Rebate. Purchase 4 or more NGK Laser Platinum, Laser Iridium or Iridium IX Spark Plugs on the same receipt between 05/02/17 and 05/29/17 to claim a $10 AutoZone Gift Card.
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    NGK IX Iridium/Spark Plug

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    5

    This review is hidden because you have chosen to ignore Member 1052065744. Show DetailsHide Details

    Great Spark Plug

    1 of 7 people found this helpful

    good product
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