NGK BMR6A Spark Plug Box 10

The NGK BMR6A is a high-quality, resistor-type spark plug featuring a copper core for superior heat dissipation, corrosion resistance, and a projected tip for improved ignition performance. It is widely used in small engines, motorcycles, scooters, and other compact 4-stroke engines. It has an M12 x 1.25 thread, 19mm reach, and a 16mm (5/8") hex size.

Key Features & Specifications:

• Part Number: BMR6A
• Fits: Dolmar and Makita disc cutters and, Atlas Copco Cobra Breakers
• Replaces: Champion RCJ8 / DENSO W20MRU /  Bosch WSR8E
• Thread Diameter: 12mm
• Thread Reach: 19mm (3/4")
• Hex Size: 16mm (5/8")
• Tip Material: Nickel Alloy
• Core Material: Copper
• Resistor: Yes (5 kOhm)
• Gap: 0.7mm - 0.8mm (0.028" - 0.032")

Benefits:

• Corrosion Resistance: Trivalent metal plating protects against corrosion and seizing in aluminium cylinder heads.
• Improved Performance: Copper core and nickel alloy electrode provide excellent heat transfer and long service life.
• Consistent Spark: Resistor design suppresses electrical interference for reliable ignition and smooth engine operation.

DELIVERY OPTIONS (UK mainland only)

Next Day Delivery*
£11.95 or FREE for orders over £100
Orders placed before 4pm Monday to Friday will be delivered on the next business day.
Orders placed after 4pm on Friday will be delivered the following Tuesday.
*Next day delivery applies to stocked items only. Availability can be found on the product pages.

Premium Delivery*
£27.50 for delivery before 10:30am
£20.00 for delivery before 12:30pm
*Premium delivery applies to stocked items only. Availability can be found on the product pages.

For all other countries, please click here for full delivery information.

**Separate carriage charges apply to bulk products such as 205L barrels.