NGK R2556B-8 Racing Competition Spark Plugs

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Upgrade your factory spark plugs with these performance Competition NGK Racing plugs.

  • NGK Racing Series Plugs are Engineered to Withstand the Harshest Engine Conditions.
  • Fine Wire Iridium Tipped Center Electrode and Fine Wire Platinum Tipped Ground Electrode Ensures Slow Wear Rate Providing Stable Idle, Superior Anti Fouling, Improved Fuel Efficiency and Lower Emissions.
  • Special Insulator nose configurations improve throttle response
  • Corrugated ribs prevent flashover
  • Pure Alumina Silica Ceramic Insulator.  
  • Provides superior strength and better heat transfer
  • Copper Core aids in heat removal
  • Triple seal prevents leakage
  • Sold as a set of 4 or individually

 Plug Specifications:

Center Electrode: Ground Electrode:
Thread Size: 12mm Type: Fine Wire Type: Fine Wire
Hex Size: 5/8" (16mm) Material: Iridium Material: Platinum
Reach: 25.6mm Projection: Non-Projected  
Seat Type: Fasket    
Gap: .028" (0.7mm)    
Heat Range: 8    
Terminal Type: Solid    
Resistor: Yes

Important Information: 

  • These are a special ordered item. Please allow up to 2 weeks for these to be shipped out. 
  • This product is not necessarily vehicle specific. Spark plugs are compatible with a wide range of different applications and therefore they are displayed on our site regardless of your vehicle type. Please review the specifications and verify vehicle compatibility prior to placing your order with us. These are considered "off-road" racing plugs, and therefore do not come with a warranty, other than being DOA. (Dead on arrival)

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NGK R2556B-8 Racing Competition Spark Plugs has a rating of 5.0 stars based on 4 reviews.
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