Part of the rebuild or restoration process of any modern-classic motorcycle engine (pre fuel-injection) is the refurbishment of the carburettors.
When as many new parts as possible are used to replace the old worn items, the better the results will be.
This component and perhaps some of those listed below maybe required to ensure the carbs end up working and performing as well as they did when the machine first left the factory gates:
Add as many new parts as you wish to the same hopping cart, new O-ring seal 1329526E00 washers 1329126E001342726E00 & clip 1337526E00 for example, and still only pay the same single fixed price shipping cost.
This component may have other applications within the Suzuki model range; so please ensure the part-numbers you order are correct for your model?