Iridium IX Spark Plug
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NGK Iridium IX Spark Plug

Part No. 7355 Warranty Details  
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Laser-welded iridium center electrode is resistant to heat, corrosion and electrical wear. The tapered ground electrode minimizes quenching. Provides outstanding acceleration, high fuel efficiency and durability.

Product Features:
  • 0.6 mm iridium-tip center electrode provides durability and a high melting point
  • Taper-cut ground electrode shape provides improved flame reproduction
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Electrode Core Material:Iridium
Electrode Tip Material:Iridium
Ground Strap Quantity:1
Manufacturer Heat Range:5
Shorty Spark Plug:No
Spark Plug Reach:3/8 in
Spark Plug Seat Type:gasket
Spark Plug Thread Size:14 mm
Tip Configuration:Solid
Type:Iridium IX
Wrench Diameter:13/16 in


by PowerReviews
NGKIridium IX Spark Plug

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

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(1 of 1 customers found this review helpful)


NGK spark plugs


from San Ramon, CA

Verified Buyer


  • Easy To Install
  • Increases Power


    Best Uses

    • Performance Driving
    • Restoration

    Comments about NGK Iridium IX Spark Plug:

    This is a high quality product

    • Car & Truck:
    • Auto Enthusiast

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