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NGK Spark Plug 4177 - TR6

Great for Mild Forced Induction / Nitrous Applications or Engines with 11:1 + Compression
Pricing: $5.99


The NGK TR6 Spark Plugs are a great plug for Mild to Moderate Forced Induction / Nitrous Applications and Modular Engines with more than 11:1 Compression that require a colder than stock plug. We recommend these plugs for anything up to 15lbs of boost or 150 Hp Nitrous. Anything more we prefer the NGK BR7EF Plug. 

  • Manufacturer Heat Range:6
  • Electrode Core Material:Copper
  • Electrode Tip Material:Nickel alloy
  • Insulator Type:Projected
  • Spark Plug Thread Size:14mm
  • Spark Plug Reach:0.690 in.
  • Spark Plug Seat Style:Tapered
  • Wrench Diameter:5/8 in.



  • NGK-4177
  • NGK-4177
  • NGK
  • New


Shipping Information

  • Item Requires Shipping
  • 1.0 lbs.

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