Description
The Denso SF-50 (BUHW) Spark Plug is an engine spark plug with a centre electrode and is commonly used on larger Mercury and Mariner engines.
This spark plug is a replacement for the NGK BUHW.
A spark plug ignites the fuel/air mixture in combustion engines to ignite and run the engine.
It is important to maintain spark plugs and replace them frequently for optimal engine performance.
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