NGK Racing Spark Plug

NGK Racing Spark Plug

Part Number: 4905
Alternate Part Number: R7438-8
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In Stock
Est. Delivery: Oct 28-29
Price: $ 42.99
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Features & Benefits

NGK Racing plugs are specially designed plugs for extreme conditions. NGK Racing plugs are intended for racing use only. Racing plugs are designed with extreme use in mind as some plugs require special ground electrode shapes and very cold heat ranges to withstand racing conditions.

  • Center Electrode Design –special center electrode configurations and designs to ensure durability and ignitibility; some use precious metals.
  • Many different ground electrode configurations to ensure durability.
  • Racing plugs are available in colder heat ranges for high performance applications.
  • Proven race results
Product Details
Part Number: 4905
Weight: 0.14lbs
Center Electrode Core Material: Copper
Center Electrode Design: Fine Wire
Center Electrode Tip Material: Iridium
Drive Size: 5/8 in
Electrical Terminal Type: Non-Removable Nut
Gap - Factory Preset: 0.7 mm = 0.028 in
Ground Electrode Configuration: Single
Ground Electrode Core Material: Platinum
Ground Electrode Design: Retracted
Ground Electrode Tip Material: Platinum
Insulator Material: Ceramic
Insulator Type: Non-Projected
Manufacturer Heat Range Number: 8
Reach (in): 1.04
Resistance (Ω): 5000.0
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.
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