2012-2020 Lexus GS 350 Spark Plug Service Torque Specs

3.5L V6

Applies to 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020 Lexus GS 350

Labor Time:1 hours

🔧 Torque Values5 specifications

Component	lb-ft	Nm	Notes
Cover Screws	9	12	—
Engine Cover Clips	2	3	—
Ignition Coil Bolt	9	12	—
Mounting Bolts	23	31	—
⚠️ Spark Plug	17	23	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 2012-2020 Lexus GS 350 is 12 Nm (9 lb-ft).

There are 5 torque specifications for spark plug service on the 2012-2020 Lexus GS 350 3.5L V6, covering all related fasteners and components.