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E3 DiamondFIRE Racing Spark Plugs
Spark Plug, Racing, Copper Core, Tapered Seat, 14mm Thread, 0.708 in. Reach, Each
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Estimated Ship Date: Monday 11/9/2026 Would you rather pick it up?
Overview
Brand:
Manufacturer's Part Number:
E3.108
Part Type:
Product Line:
Summit Racing Part Number:
ETP-E3-108
Item Number:
3976617
UPC:
894489000046
Spark Plug Thread Size:
14mm
Spark Plug Reach (in.):
0.708 in.
Spark Plug Reach (mm):
17.98mm
Spark Plug Seat Style:
Tapered
Shorty Spark Plug:
No
Resistor:
No
Electrode Tip Material:
Nickel alloy
Electrode Core Material:
Copper
Center Electrode Type:
Non-projected
Wrench Diameter:
5/8 in.
Ground Strap Quantity:
Two
Quantity:
Sold individually.
Notes:
Cold heat range.
E3 DiamondFIRE Racing Spark Plugs
Designed specifically for conditions at the track, E3 DiamondFIRE racing spark plugs combine a maximized spark presentation and optimized flame propagation. The unique patented DiamondFIRE electrode configuration of these new E3 spark plugs increases the amount of combustion pressure created during each power stroke of an engine. Round after round, lap after lap, the E3 DiamondFIRE racing spark plugs provide you the consistency you need for winning performance.
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