NGK Racing Spark Plug - 4656 (Single) | R7438-9
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Extra cold plug for high horsepower applications.
Sold as a SINGLE plug.
| Center Electrode Core Material | Copper Core |
| Center Electrode Tip Material | Iridium |
| Ground Configuration | Slant |
| Ground Electrode Core Material | Platinum |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Pin Type |
| Hex Size | 5/8 in |
| Insulator Height | 50.50 mm |
| Manufacturer Heat Range | 9 |
| Part Number | R7438-9 |
| Pre-Gap Size | .028 in |
| Reach | 26.5 mm |
| Resistance | 5000 Ohms |
| Seat Type | Flat |
| Stock Number | 4656 |
| Thread Diameter | 14.00 mm |
⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
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