Out of stock
SKU: NGKBPR7HS
UPC: 087295164228
MPN: BPR7HS
The NGK Spark Plug Stock # 6422 (part number BPR7HS) is a premium resistor spark plug engineered for reliable ignition performance across a broad range of small-engine and automotive applications. Featuring a 14mm thread size with a 0.749-inch reach and gasket seat design, this plug delivers consistent cold-start characteristics and stable combustion at operating temperature, making it a proven OEM-equivalent replacement for routine maintenance and performance tuning.
NGK's resistor technology suppresses electromagnetic interference, protecting vehicle electronics and reducing radio frequency noise—a critical consideration in modern engines with sensitive fuel injection and ignition systems. The gasket seat provides a positive seal without requiring a crush washer, simplifying installation while ensuring leak-free operation under compression. The 0.749-inch reach allows proper gap clearance in the combustion chamber, optimizing flame kernel development and promoting efficient fuel burn across idle, cruise, and wide-open-throttle conditions.
This spark plug is ideal for owner-operators, shade-tree mechanics, and fleet maintenance technicians seeking a direct replacement that meets or exceeds OEM specifications without premium pricing. It performs well in standard gasoline engines where consistent voltage delivery and gap stability are more important than exotic electrode materials. Whether restoring a vintage engine or maintaining daily-driver reliability, the BPR7HS is a workable choice for standard ignition systems requiring a 14mm, 0.749-inch-reach plug.
NGK has long held a reputation for manufacturing spark plugs to tight tolerances and consistent ceramic quality. The BPR7HS fits squarely in NGK's standard-duty lineup—not a premium offering, but a reliable baseline plug that honors the engineering fundamentals that make spark plug selection matter: correct thermal range, proper gap geometry, and noise suppression. Always verify fitment against your engine's specification sheet before installation.
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