2014-2018 Mazda Mazda3 Piston Rings - All Torque Specs

2.5L I4

Applies to 2014, 2015, 2016, 2017, and 2018 Mazda Mazda3

Labor Time:20 hours

Torque Values (13 specifications)

Component	Nm	lb-ft	Notes
⚠️ Connecting Rod Bolts	45	33	TTY - critical torque plus angle
Cover Bolts	16	12	—
⚠️ Cylinder Head Bolts	65	48	TTY - tighten in sequence plus angle
Electrical Connector Bolts	7	5	—
⚠️ Gasket Bolts	20	15	—
⚠️ Gasket Surface Bolts	20	15	Clean mating surfaces
⚠️ Main Bearing Cap Bolts	75	55	TTY - tighten in sequence plus angle
⚠️ Mounting Bolts	47	35	—
⚠️ Oil Drain Plug	35	26	Use new crush washer
⚠️ Oil Pan Bolts	12	9	Tighten in sequence
⚠️ Oil Pump Pickup Tube	12	9	—
Sensor Bolts	11	8	—
Sensor Mounting Bolts	11	8	—

The primary torque specification for piston rings - all on a 2014-2018 Mazda Mazda3 is 45 Nm (33 lb-ft). Note: TTY - critical torque plus angle

There are 13 torque specifications for piston rings - all on the 2014-2018 Mazda Mazda3 2.5L I4, covering all related fasteners and components.