# Automatic shift solenoid A and B mounting bolts (NB1)

Canonical URL: https://miatatorque.com/spec/at-shift-solenoid-mounting-bolts-nb1/

Applicability: NB 1999–2000 (BP-4W, 4AT) — 2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 group.

Confidence: fsm

70–104 in·lb / 7.9–11.5 N·m

Always confirm against your factory manual. Match every restriction and follow all stages and procedure notes. Disputed claims must not be automatically resolved. The complete record below preserves every printed unit, source claim and procedure.

```json
{
  "id": "at-shift-solenoid-mounting-bolts-nb1",
  "name": "Automatic shift solenoid A and B mounting bolts (NB1)",
  "aliases": [],
  "applies_to": [
    {
      "gen": "NB",
      "years": [
        1999,
        2000
      ],
      "engines": [
        "BP-4W"
      ],
      "trans": [
        "4AT"
      ],
      "note": "2000 applicability inferred from 1999 factory evidence within the owner-approved NB1 group."
    }
  ],
  "kind": "torque",
  "torque": {
    "nm": [
      7.9,
      11.5
    ],
    "kgfcm": [
      80,
      120
    ],
    "inlb": [
      70,
      104
    ]
  },
  "procedure": {
    "notes": "Install a new gasket. The manual prints 11.5 N·m at the upper end; retain that printed claim."
  },
  "confidence": "fsm",
  "sources": [
    {
      "source": "fsm-1999",
      "page": "05–13–17",
      "as_printed": "A: 7.9–11.5 N·m\n{80–120 kgf·cm, 70–104 in·lbf}",
      "verified_years": [
        1999,
        1999
      ],
      "torque": {
        "nm": [
          7.9,
          11.5
        ],
        "kgfcm": [
          80,
          120
        ],
        "inlb": [
          70,
          104
        ]
      },
      "document": {
        "id": "fsm-1999",
        "tier": 1,
        "title": "1999 Mazda MX-5 Miata Workshop Manual",
        "covers": [
          {
            "gen": "NB",
            "years": [
              1999,
              2000
            ],
            "engines": [
              "BP-4W"
            ]
          }
        ],
        "url": "https://www.mellens.net/mazda/Mazda-Miata-1999-2001.pdf"
      }
    }
  ],
  "jobs": [],
  "system": "transmission",
  "component": "reaudit-1999",
  "componentName": "Additional NB1 automatic service fasteners",
  "sequence_diagrams": [],
  "url": "https://miatatorque.com/spec/at-shift-solenoid-mounting-bolts-nb1/"
}
```