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View listing at Mossmiata; opens in a new tabMiata · Buyer's guide
NA/NB Miata Blower Motor, Resistor and Fan-Speed Diagnosis
1990-2005 NA/NB Miata. Resistor applications split around 1995/1997, and NB motor/housing selection must be checked by year.
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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
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View listing at Mossmiata; opens in a new tabNA/NBSeller listing
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What you need to know
Test fuse, switch/control, resistor, connector heat damage, motor current and ground. A single missing lower speed usually points differently than no operation on any speed.
OEM numbers
Mazda NB catalog lists blower motor NA01-61-B10 and resistor NA01-61-B15 within the assembly. Checked replacement resistor paths split 1990-1995 and 1995/1997-2005.Supersession
No universal resistor revision is asserted. Motor, resistor, switch/control, connector and housing are separate components.
Fitment
Test fuse, switch/control, resistor, connector heat damage, motor current and ground. A single missing lower speed usually points differently than no operation on any speed.
Aftermarket options
New replacement motors/resistors and used OEM assemblies exist. Confirm connector and year split before ordering.
Before you buy
Confirm the resistor year split and connector. Test the switch, fuse, resistor, wiring/heat damage and motor current before replacement; a failed resistor usually does not explain every possible no-blower symptom.
Research and fitment sources
Supersede reviewed 7 unique research sources for this guide. 4 also appear above as a seller or official action and are not repeated here; 3 additional citations follow.
Research last verified .