Seats & seat belts

Seat-to-floor and belt anchor hardware.

Use this checklist to track fasteners you handle. It is not a complete repair procedure or a verified disassembly order. Follow your factory manual for access, support, tightening sequences and inspections. Select your car and check each variant before using a value.

Checklist: https://miatatorque.com/jobs/seats-belts/
All NA & NB variants; select your car to narrow the list.

You’ll replace

No replacement list is recorded in these specs. Check the cited procedures for seals, gaskets and single-use hardware.

Fluids & settings

Fluid types, capacities and settings have not been catalogued for this job. Check your factory manual before filling or adjusting.

1. Seat mounts

Front seat mounting bolts

NA 1990–1993 (B6)

Factory manual28–38 ft·lb38–51 N·m38–51 N·m28–38 ft·lb

1990 Mazda MX-5 Miata Workshop Manual — Page S–59Printed: “38–51 N·m (3.9–5.2 m-kg, 28–38 ft-lb)”

Seat to floor mounting bolts (NB2)

NB 2001–2005 (BP-Z3); NB 2004–2005 (BP-Z3-TURBO)

Factory manual28–38 ft·lb38–51 N·m38–51 N·m28–38 ft·lb

2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture) — Page PDF p. 2031Printed: “38—51 {3.8—5.3, 28—38} N·m {kgf·m, ft·lbf}”

2. Seat belt anchors

Seat belt anchor and buckle bolts

NB 1999–2000

Factory manual29–57 ft·lb39–78 N·m39–78 N·m29–57 ft·lb

1999 Mazda MX-5 Miata Workshop Manual — Page 08–11–2Printed: “39–78 {3.9–8.0, 29–57}”

Seat belt upper (shoulder) anchor bolt

NA 1990–1993 (B6)

Factory manual28–58 ft·lb38–78 N·m38–78 N·m28–58 ft·lb

1990 Mazda MX-5 Miata Workshop Manual — Page S–57Printed: “38–78 N·m (3.9–8.0 m-kg, 28–58 ft-lb)”

Seat belt buckle, retractor lower and lower anchor bolts

NA 1990–1993 (B6)

Factory manual28–58 ft·lb38–78 N·m38–78 N·m28–58 ft·lb

1990 Mazda MX-5 Miata Workshop Manual — Page S–57Printed: “38–78 N·m (3.9–8.0 m-kg, 28–58 ft-lb)”

Seat belt buckle mounting bolt (NB2)

NB 2001–2005 (BP-Z3); NB 2004–2005 (BP-Z3-TURBO)

Factory manual29–57 ft·lb39–78 N·m39–78 N·m29–57 ft·lb

2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture) — Page PDF p. 1907Printed: “39—78 {3.9—8.0, 29—57} N·m {kgf·m, ft·lbf}”

Seat belt anchor and retractor mounting fasteners (NB2)

NB 2001–2005 (BP-Z3); NB 2004–2005 (BP-Z3-TURBO)

Factory manual29–57 ft·lb39–78 N·m39–78 N·m29–57 ft·lb

Notes: Follow the SRS procedure when disconnecting the pretensioner.

2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture) — Page PDF p. 1910Printed: “39—78 {3.9—8.0, 29—57} N·m {kgf·m, ft·lbf}”