This air cleaner kit uses an o-ring seal to prevent anything from outside to enter your engine's induction system, and force all air through the filter, The kit comes with a top, base, stud/nut, and spacer, The spacer is available in heights of 1/2", 1", and 2", The air cleaner base features a 1-1/2" drop, and combined with a 1/2" spacer and 4" air filter, measures 4.25" from the top of the carb neck to the top of the air cleaner, This assembly fits carburetors with a 5-1/8" neck only.
