The Trx420tm Fourtrax 2009 (9) Australia / 2wd Gasket Kit A consists of eight pieces with the Gasket Kit,a (nas) being the most expensive.
A sample from the products for the Gasket Kit A include: Gasket,cylinderhe (nas), O-ring,35.5x3, Gasket,ex.pipe (nas), O-ring,1.5x9.5.
On this parts fiche the Washer Seal, 6mm is the most specified component.