This is the Redcat Racing spark plug (type h-crm5) for gas engines. It fits Rampage models.
|Engines & Accessories|
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Which plug is best for the rampage mt, the crm5 or the crm7?
Well by the looks of it this Redcat 25027 is the equivalent of the NGK Plug model number CMR7H. It does not look like Redcat offers any other plug. The lower the number the hotter the plug is, we would recommend the Redcat plug.