Showing specs for all NA & NB Miatas

Piston pin hole diameter (Mazdaspeed)

Standard diameter 0.7870—0.7874 in (19.988—20.000 mm)Standard diameter 19.988—20.000 mm {0.7870—0.7874 in}

Factory manualTaken from a Mazda factory workshop manual, with page citation.
Procedure

Measure X and Y at four points; procedure begins on PDF35.

Applies to
  • NB 2004–2005 (BP-Z3-TURBO) — 2004 factory turbo-engine evidence; 2005 inferred within MSM family.
  • Verified in: 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turbo

Sources (1)

View 1 source citations
  • 2004 Mazda Engine Workshop Manual BP (1.8L), normally aspirated and turboTier 1
    Page 01–10–24 (PDF p. 36) · Printed value & notes
    Part no. 9999-95-EWBP-04
    Page 01–10–24 (PDF p. 36)
    Printed: “Standard diameter 19.988—20.000 mm {0.7870—0.7874 in}”