×
Description
7421 – NGK® BMR6A Nickel Spark Plug (Genuine OEM)
The 7421 NGK® BMR6A Spark Plug is a genuine OEM replacement designed to provide reliable ignition performance in a wide range of small engines and outdoor power equipment. Built with a copper core and nickel alloy electrode, this spark plug ensures strong spark delivery, efficient combustion, and consistent engine operation.
Manufactured to NGK’s strict quality standards, the BMR6A is engineered for durability, heat resistance, and long service life under demanding operating conditions.
Product Specifications
- Part Number: 7421
- Model: BMR6A
- Brand: NGK®
- Type: Resistor Spark Plug
- Electrode Material: Nickel alloy
- Core: Copper core
- OEM Status: Genuine NGK replacement
Key Features
- Reliable cold starts and smooth engine performance
- Copper core for superior conductivity and heat dissipation
- Nickel electrode for extended durability
- Resistor design reduces electrical interference
- Precision fit to OEM specifications
Common Applications
Suitable for various outdoor power equipment including:
- String trimmers
- Brush cutters
- Edgers
- Small 2-cycle engines requiring NGK BMR6A specification
Always verify correct fitment using your equipment model number and parts diagram before installation.

