The NGK 4972 (BPMR6A) is a premium standard spark plug designed for small engines in outdoor power equipment applications. This resistor-type spark plug features a durable nickel alloy center electrode with a 98% pure copper core for superior heat dissipation and optimal performance in lawn mowers, chainsaws, trimmers, and other small engine applications.
Key Features:
- Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
- Pure alumina silicate ceramic insulator offers superior strength and better heat transfer
- Copper core aids in efficient heat removal for consistent performance
- Corrugated ribs prevent flashover for reliable ignition
- Triple seals prevent leakage and ensure longevity
- Projected insulator nose design improves ignitability
- Built-in 5k Ohm resistor suppresses electromagnetic interference
Technical Specifications:
- Thread Diameter: 14mm with 1.25mm pitch
- Reach: 9.5mm (3/8")
- Hex Size: 3/4" (19mm)
- Electrode Gap: 0.028" (0.7mm)
- Heat Range: 6
- Seat Type: Gasket
- Terminal Type: Solid
- Overall Height: Bantam
Cross-References: Replaces NGK 6726, 7021, BPM4, BPM6A; Champion CJ8Y, RCJ8Y; John Deere M77742, TY6079, TY6081, TY6124; Kawasaki 92070-2108; and many other OEM part numbers.
Torque Specifications: Cast Iron: 18-25.3 lb-ft; Aluminum: 18-21.6 lb-ft
Compatible with Honda, Toro, Kawasaki, John Deere, Shindaiwa, Subaru, Robin, and many other small engine brands. Engineered to OE specifications for reliable starts and optimal engine performance.
