Showing specs for all NA & NB Miatas

Automatic transmission drain plug (NB2)

≈13–16 ft·lb18–22 N·m18–22 N·m≈13–16 ft·lb
Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Use a new washer. The source labels 14–16 as in·lbf, inconsistent with its N·m and kgf·m values; retain those two consistent units and omit the erroneous imperial claim from structured torque. Use printed N·m; inconsistent secondary units do not change the factory N·m value.

Applies to
  • NB 2001–2005 (BP-Z3, 4AT)
  • Verified in: 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)
Sources
  • 2005 Mazda MX-5 Miata Workshop Manual (electronic manual capture)Tier 1
    Page PDF p. 1583
    ≈13–16 ft·lb (18–22 N·m)
    Printed: “18—22 N·m {1.8—2.3 kgf·m, 14—16 in·lbf}”
    Printed N·m is authoritative per owner instruction. Secondary-unit misprints are preserved in as_printed but omitted from structured torque.

Also in Automatic transmission