This weld-in aluminum bung is a perfect fit for Lowbrow Customs brand gas / oil filler caps

mount them on both sides of your bike or just one

These lights measure 3 3/4" in diameter

Cylinder head modification is also not needed

Long-Term Serviceability: Repair service is available after the 2-year warranty period

Triumph Layshaft Needle Bearing - Closed Triumph Motorcycle OEM #57-1606 Vendor_Mid-USA Motorcycle Parts This weld-in aluminum bung isThis is a closed end layshaft needle bearing for 650cc, 4 speed pre unit and unit construction Triumph motorcycles. Triumph OEM part #57 1606. This is a Koyo brand bearing, made in the USA. Also available, the Triumph Layshaft Needle Bearing Driver Tool from Lowbrow Customs, which makes installing your transmission needle bearings a breeze!