Suggested oil filters for Harley Sportsters and Big Twins that are a perfect fit with the FiltroMax are K&N Black Filter SKU 003240

Used on the following carburetors: M61B

and this allows easy assembly that tightens up nicely in place as the temperatures even out

Chrome Plated Acorn Head Rocker Box Bolt Set Knucklehead Engines 1936-1947

guaranteed to fit reproduction of original Harley-Davidson parts used on all Big Twins 1946-1971

#BHC-896 1/2-20 x 2-1/2 inch Length Chrome Button Head Allen Bolt - 10 Pack Fork Tube Diameter_39MM Suggested oil filters for Harley#BHC 896 1 2 20 x 2 1 2 inch Length Chrome Button Head Allen Bolt 10 Pack. Made in Ohio, USA.