2011-2020 Toyota Sienna Downpipe Torque Specs

3.5L V6

Applies to 2011, 2012, 2013, 2014, 2015, 2016, 2017, 2018, 2019, and 2020 Toyota Sienna

Labor Time:2 hours

Torque Values (14 specifications)

Component	Nm	lb-ft	Notes
Cover Screws	12	9	—
Cover Screws	12	9	—
⚠️ Exhaust Flange Bolts	45	33	Apply anti-seize
Exhaust Flange Bolts	45	33	Apply anti-seize
⚠️ Flange Bolts	55	40	—
Flange Bolts	55	40	—
Hanger Bolts	23	17	—
Hanger Bolts	23	17	—
Heat Shield Bolts	10	7	—
Heat Shield Bolts	10	7	—
Mounting Bolts	31	23	—
Mounting Bolts	31	23	—
⚠️ O2 Sensor	45	33	Apply anti-seize to threads only
O2 Sensor	45	33	Apply anti-seize to threads only

The primary torque specification for downpipe on a 2011-2020 Toyota Sienna is 12 Nm (9 lb-ft).

There are 14 torque specifications for downpipe on the 2011-2020 Toyota Sienna 3.5L V6, covering all related fasteners and components.