Genuine NGK BPR5ES Standard Resistor Spark Plug — 1 Plug Purchase one new genuine NGK BPR5ES spark plug, suitable for compatible engines that specify this exact spark plug or an approved equivalent. Product features Brand: NGK Part number: BPR5ES Type: Standard resistor spark plug Heat range: 5 Electrode construction: Standard nickel-alloy center electrode with copper core Thread diameter: 14 mm Thread reach: 19 mm (3/4 inch) Thread specification: M14 × 1.25 Hex size: 13/16 inch (20.8 mm) Seat type: Gasket / flat seat Reference gap: Approximately 0.9 mm (0.036 inch); verify the engine manufacturer's required setting Quantity: 1 spark plug Condition: New Fitment information This plug is intended for engines whose parts catalog, owner's manual, or existing approved specification calls for NGK BPR5ES. Always verify the exact engine model and spark plug specification before purchase. A similar-looking plug may have a different heat range, reach, or terminal design. Package contents 1 × NGK BPR5ES spark plug Important: Spark plug gap and fitment requirements can vary by engine application. Check the equipment or engine manufacturer's specifications before installation.