Radiator Hose Part numbers
For the the 86 Firebird T/A with a 305 TPI (Vin F):
- Top Radiator hose
- OEM 10120056
- Gates 21675
- Dayco 71203 (On Rock auto, $13.22)
- Bottom Radiator Hose
- OEM 10120070
- Gates 21324 (Rock Auto, $15.97)
- Dayco 71131 (Rock Auto, $16.01)
- Heater Hose 1
- OEM: 10135312
- Gates 19605
- Dayco 88353 (Rock Auto, $13.42)
- Heater Hose 2
- OEM: 14081308
- Dayco 87703 (Rock Auto, $15.12)
- Heater Hose 3 (3/4" Some length)
- OEM: 12322343
- Gates 28412 (Rock Auto, $1.18 per ft)
Hose Diagram:
Numbers:
Heater hoses:


