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Mazda ND - MX-5 Miata Torque Specs

Verified torque references for Mazda ND - MX-5 Miata, including source links, safety notes, and ft-lb / Nm conversions.

Primary spec

Spark plug

13ft-lb

17.5 Nm

Safety note

Confirm safety-critical fastener values against the exact model-year service manual. Use a calibrated torque wrench, the correct tightening sequence, and vehicle-specific hardware.

Engine / Engine ignition

Spark plug

Verified

13ft-lb

17.5 Nm

Mazda publishes 15–20 Nm (12–14 ft-lb) for SKYACTIV-G 1.5 and 2.0. Numeric fields store the midpoint.

Install the specified spark plug on a cool engine and use the full Mazda published range.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source

Brakes / Front brake caliper — 4-pot opposed-piston type

Caliper mounting bolt

Verified

66.5ft-lb

90 Nm

Mazda publishes 79–101 Nm (59–74 ft-lb) for bolt No. 6 in the 4-pot opposed-piston caliper procedure. Numeric fields store the midpoint.

Applies only to the factory 4-pot opposed-piston front caliper; identify the installed brake package before service.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source

Brakes / Front brake caliper — single-piston floating type

Caliper bolt

Verified

25.5ft-lb

34.5 Nm

Mazda publishes 30–39 Nm (23–28 ft-lb) for bolt No. 3 in the single-piston floating-caliper removal/installation procedure. Numeric fields store the midpoint.

Applies only to the single-piston floating front caliper; identify the installed brake package before service.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source

Suspension / Front shock absorber

Lower mounting bolt and nut

Verified

43.5ft-lb

58.5 Nm

Mazda publishes 53–64 Nm (40–47 ft-lb). Numeric fields store the midpoint.

Insert the lower bolt from the rear of the vehicle and use the full Mazda published range.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source

Fluids / Rear differential

Drain plug

Verified

34.5ft-lb

46.5 Nm

Mazda publishes 40–53 Nm (30–39 ft-lb). Numeric fields store the midpoint.

Replace the sealing washer as specified and use the full Mazda published range.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source

Fluids / Rear differential

Filler plug

Verified

34.5ft-lb

46.5 Nm

Mazda publishes 40–53 Nm (30–39 ft-lb). Numeric fields store the midpoint.

Replace the sealing washer as specified, set fluid level per Mazda procedure, and use the full range.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source

Drivetrain / Rear differential mounting

Installation nuts

Verified

59.5ft-lb

80.5 Nm

Mazda publishes 70–91 Nm (52–67 ft-lb). Numeric fields store the midpoint.

Verify the differential stud bolts are secure and follow Mazda mounting procedure before tightening the nuts.

Source

Checked Jun 18, 2026

Mazda Australia Factory Workshop Manual (Operation CHARM archive)

OEM workshop specification; numeric field stores midpoint of the published range while notes retain the full range and brake-package applicability.

Open source