Buell XB9 and XB12 2003-2010 O-ring set for fuel pump ( 2x )
This is the Twin Motorcycles replacement O-ring set (OEM P0121.02A8A are obsolete) for all Buell XB models fuel pump.
sold in a set of 2 pieces o-ring
mount with a small amount off rubber lubricant partnumber 526223
can be found here , or similair product can be used
Twin Motorcycles Buell Support forever