SKU: NGKR6252K-105
UPC: 087295127414
MPN: R6252K-105
The NGK Spark Plug Stock # 2741 (part number R6252K-105) is a premium racing spark plug engineered for high-performance engine applications requiring dependable ignition under demanding conditions. This 14mm thread spark plug features a 0.749-inch reach and gasket seat design, making it a direct fit for vehicles originally equipped with NGK racing specifications. The resistor construction suppresses radio frequency interference while maintaining spark integrity across wide throttle ranges.
NGK's racing spark plug lineup is built to withstand the thermal and electrical stress of high-RPM operation where standard plugs fail prematurely. The R6252K-105 combines NGK's proven electrode design with a resistor core that extends plug life while reducing ignition noise in demanding motorsports and high-output street engine environments. The gasket seat ensures a reliable seal without damage to the cylinder head, critical for engines operating at elevated boost pressures or forced induction. Each plug is manufactured to exacting tolerances that NGK maintains across their racing division.
This spark plug is ideal for enthusiasts rebuilding or tuning performance engines where OEM plug specifications call for the NGK 2741 designation. It serves drag racing, road course, and turbocharged street applications where consistent combustion and heat management directly influence power output and engine reliability. Buyers sourcing replacement NGK racing spark plugs by stock number or part number will find this genuine NGK component delivers the performance and consistency expected from the brand's racing heritage.
NGK Racing spark plugs occupy a specialized position within the ignition market, targeting builders and tuners rather than daily commute applications. The R6252K-105's specifications—thread size, reach dimension, and resistor technology—are matched to specific engine platforms, making correct part identification essential before purchase. This is a single plug; verify your engine requires this exact NGK designation for proper fitment and performance.
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