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NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)

SKU: NGK91975

Spark Plug

NGK Iridium/Platinum...

Ngk

Ngk

NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)

SKU: NGK91975

Spark Plug

NGK Iridium/Platinum...

A$340.76
IN STOCK! Est Ship 3-5 days. This item is IN STOCK at one of our warehouses or distribution centres, the ETA is the approximate time required to prepare your order for dispatch.
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Description

NGK Racing spark plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions. NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world. The center electrode of the NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability. NGK Racing plugs bring ultra high performance in a variety of heat ranges. Special configurations are used for a wide variety of racing applications.

Product Overview

NGK Racing spark plugs are designed with extreme use in mind and meant to withstand the most grueling racing conditions. NGK Spark Plugs have been powering racing champions and can be found in every racing venue throughout the world. The center electrode of the NGK Racing spark plugs has special configurations and designs to ensure durability and ignitability. NGK Racing plugs bring ultra high performance in a variety of heat ranges. Special configurations are used for a wide variety of racing applications.


Features and Benefits

  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

Product Details

Center Electrode Core Material:Copper
Center Electrode Tip Material:Iridium
Description:NGK Racing Spark Plug
Electrical Terminal Type:Non-Removable Nut
Ground Configuration:Slant
Ground Electrode Core Material:Platinum
Ground Electrode Quantity:1
Ground Electrode Tip Design:Pin Type
Hex Size:5/8
Insulator Height:51.00
Manufacturer Heat Range:8
Part Number:R2556G-8
Pre-Gap Size:.028
Reach:26.5
Resistance:5000.0
Seat Type:Flat
Stock Number:91975
Thread Diameter:12.00

Application Summary

Racing Use

Part Type

Spark Plug

Data: v4.2 - Upd: 2026-10-14 07:39:21

Features

  • Copper core aids in heat removal
  • Pure alumina silicate ceramic insulator provides superior strength and better heat transfer
  • Triple seals prevent leakage
  • Trivalent metal plating for superior anti-corrosion and anti-seizing properties
  • TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal

Specifications

Center Electrode Core Material:
Copper
Center Electrode Tip Material:
Iridium
Description:
NGK Racing Spark Plug
Electrical Terminal Type:
Non-Removable Nut
Ground Configuration:
Slant
Ground Electrode Core Material:
Platinum
Ground Electrode Quantity:
1
Ground Electrode Tip Design:
Pin Type
Hex Size:
5/8
Insulator Height:
51.00
Manufacturer Heat Range:
8
Part Number:
R2556G-8
Pre-Gap Size:
.028
Reach:
26.5
Resistance:
5000.0
Seat Type:
Flat
Stock Number:
91975
Thread Diameter:
12.00

Reference Information

Brand Name/s Ngk
StreetFX SKU ngk91975
SFX Item ID 4149267
Supplier Item Code 4149267
Manufacturer SKU 91975
Manufacturer UPC 87295919750
Alternative References (R2556G-8)

Compatibility

Racing Use

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