Question 1

What is the torque spec for o2 sensor - downstream on a 2003-2009 Kia Sorento?

Accepted Answer

The primary torque specification for o2 sensor - downstream on a 2003-2009 Kia Sorento is 45 Nm (33 lb-ft). Note: Apply anti-seize

Question 2

How many torque specs are there for Kia Sorento o2 sensor - downstream?

Accepted Answer

There are 7 torque specifications for o2 sensor - downstream on the 2003-2009 Kia Sorento 3.5L V6, covering all related fasteners and components.

Component	Nm	lb-ft	Notes
⚠️ Exhaust Flange Bolts	45	33	Apply anti-seize
⚠️ Flange Bolts	54	40	Apply anti-seize
Hanger Bolts	23	17	—
Heat Shield Bolts	10	7	—
⚠️ Manifold Nuts	39	29	Apply anti-seize
Mounting Bolts	31	23	—
⚠️ O2 Sensor	45	33	Apply anti-seize to threads only

2003-2009 Kia Sorento O2 Sensor - Downstream Torque Specs

Torque Values (7 specifications)