NGK Spark Plug BPR6ES 7131

The NGK BPR6ES (7131) is a high-quality, standard-style spark plug widely used in small engines, including lawn mowers, pressure washers, and generators. It features a projected insulator tip and a built-in resistor to suppress ignition noise that can interfere with electronic devices.
Key Specifications
Thread Size: 14mm
Thread Reach: 19mm (3/4")
Hex Size: 13/16" (21mm)
Heat Range: 6 (NGK medium-cool range)
Gap: Factory pre-gapped at 0.032" (0.8mm)
Electrode Material: Nickel alloy center electrode with a copper core for superior heat dissipation.
Resistor: Yes (5k Ohm), designed to reduce Electromagnetic Interference (EMI).
Performance Features
Copper Core: Provides a wider heat range than standard plugs, helping to prevent pre-ignition and fouling.
Corrosion Resistance: Features trivalent metal plating which provides superior anti-corrosion and anti-seizing properties, making it easier to remove during future maintenance.
Triple Seal: Prevents combustion gas leakage past the shell.