Chicago Fire Department/Units

Firehouse 51

• Ambulance 61 - Ambulance unit, responsible for emergency medical services.
• Battalion 25 - Battalion Chief unit, in command of Battalion 25 and all firehouses in it (including Firehouse 51).
• Engine 51 - Primary firefighting unit, used for water, gear and personnel transport.
• Truck 81 - Secondary firefighting and rescue unit, used for gear and personnel transport.
• Rescue Squad 3 - Technical rescue unit, firefighter members are specially trained for more difficult situations and wider array of emergencies.
• Deputy District Chief 2-2-6 - Deputy District Chief unit in command of District 4 and all firehouses in it (including Firehouse 51).(Formerly assigned at firehouse 51

Other units mentioned in series

• Hazardous Material Companies;
  • Hazardous Material 10 - Assigned to Firehouse ? (G510)
  • Hazardous Material 2 - Assigned to Firehouse ? (G492)
• Rescue Squad Companies;
  • Rescue Squad 1 - Assigned to Firehouse 20
  • Rescue Squad 3 - Assigned to Firehouse 51
  • Rescue Squad 4 - Assigned to
  • Rescue Squad 6 - Assigned to
  • Rescue Squad 8 - Assigned to Firehouse 33

• Ambulance Companies;
  • Ambulance 159 - Assigned to
  • Ambulance 158 - Assigned to
  • Ambulance 157 - Assigned to
  • Ambulance 155 - Assigned to
  • Ambulance 154 - Assigned to
  • Ambulance 153 - Assigned to
  • Ambulance 152 - Assigned to
  • Ambulance 150 - Assigned to
  • Ambulance 117 - Assigned to
  • Ambulance 102 - Assigned to
  • Ambulance 99 - Assigned to Firehouse 20
  • Ambulance 98 - Assigned to
  • Ambulance 97 - Assigned to Firehouse 118
  • Ambulance 96 - Assigned to Firehouse 27
  • Ambulance 95 - Assigned to Firehouse 17
  • Ambulance 94 - Assigned to Firehouse 105
  • Ambulance 91 - Assigned to
  • Ambulance 79 - Assigned to
  • Ambulance 77 - Assigned to
  • Ambulance 76 - Assigned to Firehouse 33
  • Ambulance 74 - Assigned to
  • Ambulance 72 - Assigned to
  • Ambulance 61 - Assigned to Firehouse 51
  • Ambulance 15 - Assigned to

• Battalion Companies;
  • Battalion 32 - Assigned to Firehouse 21
  • Battalion 26 - Assigned to
  • Battalion 25 - Assigned to Firehouse 51
  • Battalion 22 - Assigned to
  • Battalion 17 - Assigned to Firehouse 17

• Engine Companies;
  • Engine 128 - Assigned to
  • Engine 118 - Assigned to
  • Engine 114 - Assigned to
  • Engine 111 - Assigned to
  • Engine 105 - Assigned to Firehouse 105
  • Engine 90 - Assigned to Firehouse 90
  • Engine 89 - Assigned to
  • Engine 85 - Assigned to
  • Engine 84 - Assigned to
  • Engine 79 - Assigned to
  • Engine 77 - Assigned to
  • Engine 67 - Assigned to Firehouse 67
  • Engine 66 - Assigned to
  • Engine 55 - Assigned to
  • Engine 53 - Assigned to
  • Engine 51 - Assigned to Firehouse 51
  • Engine 40 - Assigned to Firehouse 40
  • Engine 37 - Assigned to Firehouse 37
  • Engine 34 - Assigned to
  • Engine 33 - Assigned to Firehouse 33
  • Engine 31 - Assigned to
  • Engine 27 - Assigned to Firehouse 27
  • Engine 25 - Assigned to Firehouse 25
  • Engine 21 - Assigned to Firehouse 21
  • Engine 20 - Assigned to Firehouse 20
  • Engine 17 - Assigned to Firehouse 17
  • Engine 12 - Assigned to

• Truck Companies
  • Truck 121 - Assigned to
  • Truck 94 - Assigned to
  • Truck 92 - Assigned to
  • Truck 87 - Assigned to
  • Truck 85 - Assigned to
  • Truck 81 - Assigned to Firehouse 51
  • Truck 75 - Assigned to Firehouse 27
  • Truck 74 - Assigned to
  • Truck 72 - Assigned to Firehouse 25
  • Truck 70 - Assigned to
  • Truck 68 - Assigned to Firehouse 20
  • Truck 67 - Assigned to Firehouse 67
  • Truck 66 - Assigned to Firehouse 105
  • Truck 65 - Assigned to
  • Truck 64 - Assigned to Firehouse 90
  • Truck 63 - Assigned to
  • Truck 57 - Assigned to Firehouse 40
  • Truck 54 - Assigned to
  • Truck 46 - Assigned to
  • Truck 43 - Assigned to Firehouse 21
  • Truck 27 - Assigned to
  • Truck 3 - Assigned to
• Notes:
  • Ambulance 96 - Brett was transferred here in S5 E14 "Purgatory"
  • Ambulance 99 - Violet spot (as a PIC) prior to Ambo 61 in season 9
  • Battalion 26 - Battalion Chief Dan Wiess, secondary chief on scene of structure fire in S3 E23 "Spartacus"
  • Battalion 22 - Battalion Chief Benjamin Severide last assignment before his death, This was also the assignment for Steve Walker whenever he is shown as a Battalion Chief
  • Battalion 17 - Battalion Chief Pat Pridgen main assignment
  • Engine 90 - Blake Gallo prior assignment before being transferred to Truck 81 by Captain Matthew Casey
  • Engine 66 - Joe Cruz is temporarily placed on to find the person that stole the firehouse lockbox keys.
  • Truck 75 - Stella Kidd's prior assignment prior to joining Truck 81. She was temporarily transferred back there.
    • S5 E14 "Purgatory"
  • Truck 67 - commonly known as "Morningside", Otis once requested to transfer here & was temporarily transferred here in S5 E14 "Purgatory"
  • Truck 66 - Rival company to Truck 81 with Tommy Welch as lieutenant
  • Truck 64 - Herrmann and Mouch were transferred there in S5 E14 "Purgatory"
  • Squad 4 - Former assignment to Wallace Boden, Benny Severide, and Henry Mills.
  • Squad 6 - Jason Kannel's prior assignment prior to joining Squad 3