600 - TRACTOR 20 GOVENOR AND SPEED CONTROL LINKAGE Parts group 20 GOVENOR AND SPEED CONTROL LINKAGE 20 GOVENOR AND SPEED CONTROL LINKAGE . SPEED CONTROL LINKAGE AND PEDAL (DIESEL) (SERIAL NO. -200999) [01D02] SPEED CONTROL LINKAGE, PEDAL, AND CHOKE CABLE (GASOLINE) (SERIAL NO. -200999) [01D04] FOOT SPEED CONTROL LINKAGE (SERIAL NO. 201000- ) [01D06] HAND SPEED CONTROL LINKAGE (SERIAL NO. 201000- ) [01D07] SPEED CONTROL RODS AND CHOKE CABLE (SERIAL NO. 201000- ) [01D08]