NGK 4656 Racing Spark Plug
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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.
- DESIGNED FOR RACING: Low angle tip design built to withstand extreme heat and vibration
- RECOMMENDED USAGE: Racing use only, featuring special configurations and designs to ensure durability and ignitability
- NGK's OE CERAMIC TECHNOLOGY: High grade alumina silicate ceramic creates a stronger insulator for optimal dielectric performance
- SOLID COPPER CORE: 98% pure copper core offers superior heat dissipation, conductivity and ultra wide heat ranges
- COLD-ROLLED THREADS: Prevents cross-threading and damage to cylinder heads
- TRIVALENT METAL PLATING: Delivers superior anti-corrosion and anti-seizing properties, ensuring ease of installation and removal
Specifications
| Short Style Spark Plug | No |
| Stock Number | 4656 |
| Part Number | R7438-9 |
| Metallurgy | Iridium Platinum |
| Service Number | R7438-9 |
| Dimension | 5000.0 82 |
| Tip Configuration | Pin Type |
| Gap Style | Slant |
| Thread Standard | Metric |
| Ground Electrode Core Material | Platinum |
| Grade Type | Performance |
| Terminal Type | Non-Removable Nut |
| Center Electrode Core Material | Copper |
| Center Electrode Material | Iridium |
| Spark Plug Gap | .028 IN |
| Ground Electrode Quantity | 1 |
| Hex Size | 5/8" (16mm) |
| Length | 1.99 IN |
| Heat Range | 9 |
| Seat Type | Flat |
| Reach | 1.043 IN |
| Material | Ceramic |
| Thread Size | M14 - 1.25 |
| Ground Electrode Material | Platinum |
| Resistor | No |
| Insulator Nose Projection | 0.02 IN |
| Electrode Style | Fine Wire |
| Projection | Non-Projected |
| Country of Origin | Japan |
Warranty: 2 Months
Please check the product description for the manufacturer’s application details, or ask a specialist — we’ll confirm whether it fits your vehicle before you buy.
Shipping Information
Free shipping is available for eligible orders.
Shipping: Free to the USA.
Orders are processed during normal business days. Delivery dates may vary by carrier and destination.
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