NA/NBSeller listing
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View listing at Mossmiata; opens in a new tabMiata · Buyer's guide
NA/NB Miata No-Crank Diagnosis: Starter, Ignition Switch and Interlocks
US-market 1990-1993 NA6, 1994-1997 NA8, 1999-2000 NB1, and 2001-2005 NB2. Separate manual clutch-interlock and automatic range/interlock circuits.
Current seller options
WHERE TO BUY
Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.
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NA/NBSeller listing
Listed price$199.99
View listing at Gomiata; opens in a new tabNA/NBSeller listing
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View listing at Treasure Coast Miata; opens in a new tabNA/NBSeller listing
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View listing at Mossmiata; opens in a new tabNA/NBSeller listing
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View listing at Miatadepot; opens in a new tabNA/NBSeller listing
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View listing at Mike's Miata Parts; opens in a new tabWhat you need to know
Separate starter/solenoid, electrical ignition switch, manual clutch-start circuit and automatic selector/range circuit. Test battery state, cable voltage drop, grounds and command voltage before replacing the starter.
OEM numbers
Checked references include NB electrical ignition switch N053-66-151, manual-transmission interlock switch family 8118-17-640B, and later six-speed switch Y602-17-640B. Exact starter and switch references remain year/transmission specific.Supersession
No universal starter or interlock supersession is claimed. Seller cross-references must be checked against year, transmission and connector.
Fitment
Separate starter/solenoid, electrical ignition switch, manual clutch-start circuit and automatic selector/range circuit. Test battery state, cable voltage drop, grounds and command voltage before replacing the starter.
Aftermarket options
New and reman starters, genuine electrical switches, and exact manual-transmission interlock switches are separate solutions. Do not bypass a safety interlock as a repair.
Before you buy
Do not condemn the starter from a click or silence alone. Test battery, connections, voltage drop, switch command and the correct manual/automatic interlock. Never defeat a clutch or range safety circuit for normal use.
Research and fitment sources
Supersede reviewed 9 unique research sources for this guide. 6 also appear above as a seller or official action and are not repeated here; 3 additional citations follow.
Research last verified .