1998-2001 Subaru Impreza Water Pump Torque Specs

2.5L H4

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

Labor Time:2.5 hours

🔧 Torque Values6 specifications

Component	lb-ft	Nm	Notes
Hose Clamps	2	3	—
⚠️ Housing Bolts	10	14	—
⚠️ Pump Bolts	18	24	—
Thermostat Housing Bolts	11	15	—
⚠️ Timing Cover Bolts	15	20	If accessed
⚠️ Water Pump Bolts	18	25	Tighten in criss-cross pattern

⚠️ = Critical torque value | Always verify with vehicle-specific service manual

⚠️ Some critical specs are estimated. Please verify sequence.

1990-1997 4.6L V8 Modular

2007-2012 3.7L I5

2011-2016 6.7L V8 Power Stroke Diesel

1992-1995 1.5L I4 D15

2016-2023 2.0L Turbo I4

1995-1999 2.0L Turbo I4

The primary torque specification for water pump on a 1998-2001 Subaru Impreza is 3 Nm (2 lb-ft).

There are 6 torque specifications for water pump on the 1998-2001 Subaru Impreza 2.5L H4, covering all related fasteners and components.