NGK 4004 Spark Plug BMR4A - 2 Pack

The NGK 4004 Spark Plug (BMR4A) is designed for small engine applications, offering reliable ignition, smooth performance, and long service life. Built with a solid copper core and nickel alloy electrode, it ensures efficient heat dissipation and dependable combustion—ideal for chainsaws, trimmers, and other compact outdoor power equipment.

Features & Benefits:

🔧 Copper core improves thermal conductivity and ignition
🔧 Nickel alloy electrode resists fouling and corrosion
🔧 Compact design fits small engine configurations
🔧 Pre-gapped for quick and accurate installation

Specifications:

Brand & Part Number: NGK 4004 (BMR4A)
Material: Nickel with Copper Core
Thread Size: 14mm
Reach: 9.5mm (3/8 in)
Hex Size: 13/16 in (20.8mm)
Heat Range: 4
Seat Type: Gasket
Resistor: No
Gap: 0.7mm (0.028 in)

Choose NGK BMR4A for consistent small engine performance, reliable ignition, and trusted durability—perfect for your outdoor equipment needs!