620005060089 Cylinder head subassembly

1 620005060090 气缸盖 Cylinder head 6 6 8 8
2 620005060091 进气门座 Inlet valve seat 12 12 16 16
3 620005060092 排气门座 Exhaust valve seat 12 12 16 16
4 620005010010 气门导管 Valve guide 24 24 32 32