NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)
NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)
Description
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NGK Iridium/Platinum Spark Plug Box of 4 (R2556G-8)
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.
Additional Information
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.
Application Summary
Racing Use
Part Type
Spark Plug
Features and Benefits
- 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
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 |
Product Overview
Data: v2 - Desc: v4.2 - Upd: 2026-10-14 04:07:05
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
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
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