Item No.
Hose or Part Description
GM Part Number

0
Thermostat
12559807

0
Thermostat housing gasket (seal)
03522676

1
Upper radiator
25700766

2
Lower radiator
03521505

3
Surge tank to heater inlet T
03541475

4
Heater inlet
03544755

(old no. 03541472)

5
Heater outlet
03544756

(old no. 03541473)

6
Surge tank to crossover pipe
03539600

7
Surge tank crossover pipe to throttle body
03537363

8
Throttle body to water pump
03529068

9
Thermostat housing to segment of heater return tube
03537362

10
Water pump to heater inlet crossover tube
01639094*

11
Heater outlet crossover tube to tube to thermostat housing
01639094*



* Special long-life silicone material; replace only if necessary.