Harley Big Twin 4 Speed Duo-Seal Super Nut Kit 1941-1984 Shovelhead V-Twin 17-1490Premium Factory Upgraded Performance Parts Powersports Inventory Vault Up for sale is a brand new, New Old Stock (NOS) V Twin Manufacturing Duo Seal Super Nut Kit (Part Number: #17 1490 Cross references Tedd Cycle index: 17 1490). Safely preserved and factory sealed inside its original plastic packaging sleeve, this premium driveline upgrade kit completely replaces the leak prone stock mechanical sprocket nut to provide a modern dual rubber oil seal

Partial / Incomplete gasket kit

Structurally solid and fully functional

and Night Train

Honda VT750 Shadow Aero (2004–2009)

or replacing worn or missing factory components

❌ Gaskets and tuning parts not included

two cylindrical glass-mounting barrels

1999 Yamaha Road Star XV1600

return springs

allowing for longer

GV700/1200

Electrical Specs: 6-Volt Operating Current / 25W Low Beam / 25W High Beam