includes o-ring

it bolts directly onto your bike with no modifications or welding required

repair services are available

Time to rebuild those leaky

This manifold adapter can be used to mount a late model CV carb or a Mikuni HSR 42 MM carb on Evolution Big Twin

#7503-1 Oversized Drain Plug 1965-Up Harley-Davidson Big Twins 1967-Up Sportster - Chrome Plated Bar Diameter_7/8 inch includes o-ringChrome Plated Oversized Drain Plug Only Fits Harley Davidson Big Twins 1965 up and Sportster 1967 up NOTE: To use this you will need to tap the hole before installing the new drain plug with a 9 16 x 18 tap . The hex on this plug measures 3 4", Made in Ohio, USA.