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Transmission & Differential (NB)

NB (1999–2005) Mazda Miata MX-5 Transmission & Differential Parts

Shop OEM and used transmissions, differentials, and driveline components for the second-generation NB Mazda Miata MX-5 (1999–2005). Each unit is inspected, fluid-drained, and bench-tested when possible to ensure smooth operation and reliable performance.

Our inventory includes:

  • 5-speed and 6-speed manual transmissions
  • Limited-slip and open differentials
  • Axles, driveshafts, and carrier bearings
  • Transmission mounts, brackets, and hardware

All components are genuine Mazda OEM parts sourced from clean donor vehicles and backed by our quality guarantee.

Browse related collections:

1994–2005 Mazda Miata MX-5 Driveshaft Prop Shaft OEM NA75-25-100 Manual
1994–2005 Mazda Miata MX-5 Driveshaft Prop Shaft OEM NA75-25-100 Manual
$114.95
1990-2005 Mazda Miata OEM Rear Diff Mount Two Bolt 90-05
1990-2005 Mazda Miata OEM Rear Diff Mount Two Bolt 90-05
$19.95
1990-2005 Mazda Miata Mx5 OEM Manual PPF Power Plant Frame Brace 90-05
1990-2005 Mazda Miata Mx-5 OEM Manual PPF Power Plant Frame Brace 90-05
$99.95
90-05 MAZDA MIATA REAR END GEAR RING PINION DIFFERENTIAL MOUNTS CROSS MEMBER
90-05 MAZDA MIATA REAR END GEAR RING PINION DIFFERENTIAL MOUNTS CROSS MEMBER
$22.46
99-00 Mazda miata Transmission Controller BP4X189E1E mx5 tcu tcm control module — Mazda Miata MX-5 OEM part product photo
1999-2000 Mazda Miata Transmission Controller BP4X189E1E MX5 TCU TCM Control Module 99-00
$49.95
1999-2000 MAZDA MIATA FLYWHEEL FLEX PLATE AUTO TRANSMISSION 99-00 98NB18G2 — Mazda Miata MX-5 OEM part product photo
1999-2000 Mazda Miata Mx-5 OEM Flywheel Flex Plate Auto Transmission 99-00 98NB18G2
$39.95
2001-2005 MAZDA MIATA FLYWHEEL FLEX PLATE AUTO TRANSMISSION 01-05 01NBA3D — Mazda Miata MX-5 OEM part product photo
2001-2005 Mazda Miata Flywheel Flex Plate Auto Transmission 01-05 01NBA3D
$39.95
1994-2005 Mazda Miata 4.1 Open Differential Used 1.8 Diff Rear End 94-05 — Mazda Miata MX-5 OEM part product photo
1994-2005 Mazda Miata 4.1 Open Differential 1.8 Diff Rear End 94-05
$399.95
1994-2005 Mazda Miata 4.1 Open Differential Used 1.8 Diff Rear End 94-05 98NB18G — Mazda Miata MX-5 OEM part product photo
1994-2005 Mazda Miata 4.1 Open Differential 1.8 Diff Rear End 94-05 98NB18G
$399.95
1994-2005 Mazda Miata 4.30 4.3 Torsen 2 LSD Limited Slip Diff Differential 1.8 — Mazda Miata MX-5 OEM part product photo
1994-2005 Mazda Miata 4.30 4.3 Torsen 2 LSD Limited Slip Diff Differential 1.8 **HEAVY WHINE** 94-05
$549.95
99-05 MAZDA MX-5 MIATA Manual Transmission 5 Speed OEM USED TESTED 173K Miles — Mazda Miata MX-5 OEM part product photo
1999-2005 Mazda Miata Mx-5 OEM Manual Transmission 5-Speed 173K Miles 99-05
$499.95
99-05 Mazda Miata Roadster T2 Torsen LSD NA NB 1.8L Helical OEM Genuine — Mazda Miata MX-5 OEM part product photo
1999-2005 Mazda Miata Roadster T2 Torsen LSD NA NB 1.8L Helical OEM Genuine 99-05
$599.95