Fits XT500, TT500, SR500, SR400, VMX1200 '88-'98, XVZ12TD/1200TD '88, XVZ13TD/A/AT/1300A '89-'98 One-time-use crush gasket Copper ring filled with composite material 5mm thick , compressible for best sealing Needed to seal when mounting header pipe to cylinder head OEM Reference # 90430-38054 / 3GD-14613-00
