2 each Primary Cover Gasket Pre-unit Triumph 650 500 Alternator 5T 6T 57-1057 *
You will get the pair of primary gaskets that are pictured
This is correct for the models described in the title
If you have some other model with generator, suspension, or dynamo, then you will require a different primary gasket.
Brand: STEADFAST CYCLES
Country/Region of Manufacture: UNITED KINGDOM
Manufacturer Part Number: 57-1057