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Mazda MX-5 Miata ND (4th Generation)

2016–2026 · ND · convertible

Fourth-gen Miata (ND) put the car on a diet — back under 2,400 lb and sharper than the NC in every measurable way. 2.0L SkyActiv-G I4 (155hp 2016-2018 ND1, 181hp 2019+ ND2 after a head/intake/exhaust update that raised the redline to 7,500 rpm). 6-speed manual or 6-speed auto. The ND RF (Retractable Fastback, 2017+) replaces the NC's full hardtop with a targa-style power top. Mazda also sold a Fiat-badged version (Fiat 124 Spider, 2017-2020) with a turbo 1.4L.

Watch out: ND2 (2019+) stretchy connecting-rod bolts — Mazda's revised rod-bolt spec on the high-revving 181hp 2.0L can stretch under sustained track use, leading to rod-bearing failure. Tracked ND2 owners increasingly swap to ARP bolts preventively (~$200 part, engine-out job).

What your MX-5 Miata takes

The parts and fluids that fit this generation. Specs we publish are confirmed against two independent sources; the rest fill in as we verify them.

  • Tire size195/50R16✓ VerifiedView
  • Headlight bulbs7440 DRL✓ VerifiedView
  • CoolantMazda Genuine FL-22 Engine CoolantFrom owner's manualShop
  • Differential fluidRear: Mazda Long Life Hypoid Gear Oil SG1 (~0.6 qt)From owner's manualShop
  • Wiper bladesNot catalogued yetFind yours soon
  • Engine oilNot catalogued yetFind yours soon
  • Oil filterNot catalogued yetFind yours
  • Engine air filterNot catalogued yetFind yours
  • Cabin air filterNot catalogued yetFind yours
  • Spark plugsNot catalogued yetFind yours soon
  • BatteryNot catalogued yetFind yours soon
  • Brake fluidNot catalogued yetFind yours soon
  • Transmission fluidNot catalogued yetFind yours soon
  • Tire pressureNot catalogued yetFind yours soon
  • Key fob batteryNot catalogued yetFind yours soon
  • Power steering fluidNot catalogued yetFind yours soon
  • Serpentine beltNot catalogued yetFind yours soon
  • Brake padsNot catalogued yetFind yours soon
  • Wheel fitmentNot catalogued yetFind yours soon
  • Brake rotorsNot catalogued yetFind yours soon
  • ThermostatNot catalogued yetFind yours soon
  • A/C refrigerantNot catalogued yetFind yours soon
  • Fuel filterNot catalogued yetFind yours soon

Full clubhouse — owner Garage Lineage, common problems, year-by-year notes, and product picks — is on the build list.

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