1997-2001 Subaru Impreza Thermostat Torque Specs

2.2L H4

Applies to 1997, 1998, 1999, 2000, and 2001 Subaru Impreza

Labor Time:1 hours

Torque Values (12 specifications)

Component	Nm	lb-ft	Notes
Bleed Screw	7	5	Open during fill
Coolant Hose Clamps	4	3	—
Coolant Temperature Sensor	20	15	Use thread sealant
Drain Petcock	7	5	Hand tight
Fan Bolts	11	8	—
Hose Clamps	4	3	—
Hose Clamps	4	3	Do not overtighten
⚠️ Housing Bolts	14	10	—
⚠️ Pump Bolts	24	18	—
⚠️ Pump Bolts	24	18	Torque in sequence
⚠️ Thermostat Housing Bolts	14	10	Clean mating surfaces
Thermostat Housing Bolts	15	11	—

The primary torque specification for thermostat on a 1997-2001 Subaru Impreza is 7 Nm (5 lb-ft). Note: Open during fill

There are 12 torque specifications for thermostat on the 1997-2001 Subaru Impreza 2.2L H4, covering all related fasteners and components.