Nelson HD plug - NL02
New model, glass seal, Nelson HD glow plug. Requires a head made to accept the 11/32" thread used on the Nelson plug. Nelson plug set ups generally provide a performance increase over standard glow plug configurations that have the threads for the plug tapped into the combustion chamber. Nelson plugs seal on a bevel outside the combustion chamber and provide a 'cleaner' chamber. $4.25 each.
