SKU: NGKR5671A-9
UPC: 087295152386
MPN: R5671A-9
The NGK V-Power Racing Plug 5238 .750in Reach Std Tip is purpose-built for high-performance and racing applications where ignition reliability and precise spark timing are non-negotiable. Designed for engines requiring a 14mm thread diameter with a gasket seat configuration, this non-resistor spark plug delivers consistent firing across aggressive engine tuning, boosted powerplants, and competitive motorsports environments. Whether you're dialing in a street-legal modified engine or preparing for track duty, this NGK racing plug provides the thermal and electrical stability demanded by serious enthusiasts.
The .750-inch reach specification is critical for proper electrode positioning within your combustion chamber—too short and the plug sits recessed, reducing spark effectiveness; too long and it fouls or contacts the piston. NGK's non-resistor construction eliminates suppression capacitance, allowing full electrical discharge energy to ignite the fuel charge with zero compromise, a characteristic valued in carbureted, distributorless, and high-RPM fuel-injected engines. The standard tip geometry and gasket seat design ensure a gas-tight seal without requiring additional hardware, simplifying installation and reducing leak paths in complex cylinder heads.
This plug suits vintage race cars, modified street machines, and purpose-built competition engines where OEM ignition systems have been replaced or upgraded. Verify your engine's spark plug thread size, reach requirement, and heat range before ordering—incorrect reach will compromise performance and risk engine damage. Available as a single unit, the V-Power Racing Plug 5238 integrates seamlessly into custom ignition harnesses, MSD systems, and other aftermarket distributors common in the performance community.
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