NGK BPR5ES Spark Plug – 7131 | OEM Replacement for Honda & Small Engines

The NGK BPR5ES Spark Plug (7131) is a professional-grade, OEM-quality spark plug designed to deliver reliable ignition performance, excellent fuel efficiency, and long service life in small engines.

Engineered with NGK’s copper core technology, the 7131 BPR5ES ensures superior heat dissipation and consistent spark delivery for smooth starting and optimal combustion. This spark plug is widely used in Honda GX-series engines found in pressure washers, soft wash systems, generators, and lawn equipment.

Features & Specifications:

• Manufacturer: NGK

• Part Number: 7131

• Model: BPR5ES

• Thread Size: 14mm

• Hex Size: 13/16" (21mm)

• Reach: 19mm (3/4")

• Seat Type: Gasket

• Gap: 0.028"–0.031" (0.7–0.8mm)

• Resistor Type: Yes

• Core Material: Solid copper core for high conductivity

• Applications: Fits Honda GX120, GX160, GX200, GX240, GX270, GX340, GX390, and other small engines used in soft wash, pressure washer, and outdoor power equipment setups

Benefits:

• OEM-equivalent performance and fit

• Delivers smooth, dependable starts

• Prevents fouling and carbon buildup

• Promotes better combustion and fuel economy

• Built to withstand demanding work environments

The NGK BPR5ES (7131) Spark Plug is trusted by professionals and homeowners alike for dependable ignition, performance, and longevity in Honda-powered equipment.