the filler neck bungs are identical on the right and left sides (unlike stock 1965-1982 dual tanks)

Add some classic 60's styling to your oil in frame Triumph

Gas Tank Shut Off Operating Knob Extension Fits 1940-65 Harley-Davidson

Parkerized duplicate of stock hardware used to mount motor in frame on all Harley-Davidson 45's and 1930-1936 VL

and the best part is: no machining is required

#2748-8 Rear Axle Adjusters Swingarm End Cover Kit 1997-2004 Harley-Davidson Sportster - Zinc Plated Vendor_The Gasbox-Inventory the filler neck bungs areSwingarm end plates, washers, nuts and zinc plated high strength axle adjusters used on 1997 2004 Sportster. Made in Ohio, USA.