The NGK BU8H spark plug is a popular choice for 2-stroke outboard engines, providing reliable performance and durability. This is the Mercury OEM recommended plug for the Mercury 225 HP Pro Max.
 
The NGK BU8H spark plug is also commonly used in various brands and models of 2-stroke outboard engines, including Mercury, Yamaha, Johnson, and Evinrude. Although it is a slightly hotter plug, it replaces the BUHW in most use cases.
 
It is suitable for a range of boating activities, from river cruising to fishing, and we've even run these successfully in the race motor.
 
Thread Diameter: 14mm (most common on 2-stroke outboards)
Seat Type: Gasket
Reach: 1/2"
Hex Size: wrench size 13/16"
Surface Gap: .016"
Center Electrode: Nickel
 
Includes a set of six (6) pre-gapped NGK Surface Gap Outboard Spark Plugs
 
Don't need six (6) plugs? Select the number of spark plugs you want and the price will adjust.
 
Contact mike@buckshotracing77.com or +1-714-697-1716 with any questions.