2016-2020 Kia Optima Front Main Seal Torque Specs

2.4L I4

Applies to 2016, 2017, 2018, 2019, and 2020 Kia Optima

Labor Time:4 hours

Torque Values (11 specifications)

Component	Nm	lb-ft	Notes
Cover Bolts	16	12	—
⚠️ Crankshaft Pulley Bolt	180	133	Often TTY - check spec, may require impact
⚠️ Gasket Bolts	20	15	—
⚠️ Harmonic Balancer Bolt	180	133	Often TTY, may need impact
Mounting Bolts	27	20	—
⚠️ Mounting Bolts	47	35	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
Oil Pan Bolts	12	9	Front section only
Sensor Bolts	11	8	—
⚠️ Timing Cover Bolts - 10mm	45	33	Tighten in sequence
⚠️ Timing Cover Bolts - 8mm	25	18	Tighten in sequence

The primary torque specification for front main seal on a 2016-2020 Kia Optima is 16 Nm (12 lb-ft).

There are 11 torque specifications for front main seal on the 2016-2020 Kia Optima 2.4L I4, covering all related fasteners and components.