2001-2004 Subaru Legacy Spark Plug Service Torque Specs

3.0L H6

Applies to 2001, 2002, 2003, and 2004 Subaru Legacy

Labor Time:1 hours

🔧 Torque Values8 specifications

Component	lb-ft	Nm	Notes
Bracket Bolts	16	22	—
Connector Bolts	5	7	—
Cover Screws	8	11	—
Engine Cover Clips	2	3	—
Ignition Coil Bolt	8	11	—
Mounting Bolts	21	28	—
Sensor Bolts	8	11	—
⚠️ Spark Plug	16	21	Gap before install

⚠️ = 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 spark plug service on a 2001-2004 Subaru Legacy is 22 Nm (16 lb-ft).

There are 8 torque specifications for spark plug service on the 2001-2004 Subaru Legacy 3.0L H6, covering all related fasteners and components.