NB1/NB2Seller listing
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View listing at Mike's Miata Parts; opens in a new tabMiata · Buyer's guide
NA/NB Miata Door Shells: Generation, Side, Hinges and Bare-versus-Complete Identification
US/LHD 1990-1997 NA and 1999-2005 NB Mazda MX-5 Miata factory front door shells only, separated first by NA, 1999-2000 NB1 and 2001-2005 NB2 service family, then by left/driver versus right/passenger side, production date and exact installed shell identity. The 1998 US gap year, 2006-up NC/ND, non-US/RHD catalog assumptions, universal or custom doors, cross-generation conversions, rear body panels and vehicles with unmeasured hinge-pillar, rocker, windshield-frame or latch-pillar collision damage are excluded. A 2004-2005 Mazdaspeed/turbo recipient requires VIN/current Mazda-catalog confirmation of the same NB2 service shell; do not infer turbo fit from a broad seller year range alone.
Current seller options
WHERE TO BUY
Open an exact listing, then confirm fitment, stock, price, and shipping with the seller before ordering.
Seller links checked . Prices and availability can change.
NB1/NB2Seller listing
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View listing at Mike's Miata Parts; opens in a new tabNB1/NB2Seller listing
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View listing at Treasure Coast Miata; opens in a new tabNB1/NB2Seller listing
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View listing at Ahparts; opens in a new tabWhat you need to know
Start with the recipient VIN, US model year and build date, NA/NB generation, left/driver or right/passenger side, and clear photographs of the installed shell label/stamping, hinge and check-strap mounts, mirror triangle, latch opening, handle and lock-cylinder provisions, wiring pass-through, speaker opening, intrusion beam and every seam. Keep NA, NB1 1999-2000 and NB2 2001-2005 separate; within NB2 retain the checked 2004 production references and confirm the current service number by VIN. A bare shell normally omits hinges and bolts, check strap/pin, latch and cables, inside/outside handles and lock cylinder, manual or power window regulator/motor and switches, glass and guides, vent/triangle frame, mirror, speaker, harness and connectors, weatherstrips and seals, vapor barrier, trim panel and clips unless each component is itemized. MIA-0047 owns NB regulator/motor selection, MIA-0044 owns mirrors and MIA-0037 owns door-latch/lock diagnosis; this page does not collapse those branches into shell interchange. Inspect a used shell for rust at seams/drains, dents and stretched metal, folded edges, filler, repaint, welding, cracked intrusion structure, elongated hinge or check-strap holes, latch-area damage, water exposure and freight damage. Support the door during removal, use current VIN-specific Mazda body procedures for hinge/latch/glass alignment, preserve corrosion protection and verify secure latch, window travel and weather sealing. Collision-damaged pillars, sill or windshield frame require qualified measurement and repair before a replacement shell is fitted.
OEM numbers
Checked Mazda collision/service identities include NA right NAY4-58-02XB and left NAY4-59-02XBNA repair outer panels 1990-1993 right NA01-58-030C and left NA01-59-030C, and 1994-1997 right NA52-58-030A and left NA52-59-030A. NB1 1999-2000 shells are right NCY0-58-02XK and left NCY0-59-02XK. The checked 1999-2004 collision guide lists 2001-2003 right NCY2-58-02XE and left NCY2-59-02XDfor 2004 it retains those through the 10/1/2003 production boundary and lists right NCY2-58-02XE plus left NCY2-59-02XE after that boundary. Current 2001-2005 Mazda Motorsports service identities are right NCY2-58-02XF and left NCY2-59-02XF, with repair outer panels right NC10-58-030G and left NC10-59-030G. Representative checked hinges are NA upper right/lower left B156-59-240 and upper left/lower right B156-58-240NB upper right/left DX50-59-240 and lower right DX50-58-240, with left lower DX50-59-240. Checked common door check is NA01-58-270B with pin BC1D-58-265. These are shell and mounting references, not a complete installed-door package.Supersession
The checked exact right NB2 seller catalog states NC72-58-020A, NC72-58-020D and NCY2-58-02XA/XB/XC/XD/XE are replaced by NCY2-58-02XF. Mazda Motorsports lists NCY2-58-02XF right and NCY2-59-02XF left as the current 2001-2005 service identities. Earlier NB2 left NCY2-59-02XD/XE and current NCY2-59-02XF are retained as documented production/service references, but no additional formal left-side arrow is invented without an exact replacement statement. NA, NB1 and NB2 are parallel generation/service families, not one interchange chain. Shared check-strap or hinge patterns, similar exterior dimensions, a seller's 1999-2005 shorthand or a complete used door does not establish cross-generation, side, power-equipment, wiring or trim interchange.
Fitment
Start with the recipient VIN, US model year and build date, NA/NB generation, left/driver or right/passenger side, and clear photographs of the installed shell label/stamping, hinge and check-strap mounts, mirror triangle, latch opening, handle and lock-cylinder provisions, wiring pass-through, speaker opening, intrusion beam and every seam. Keep NA, NB1 1999-2000 and NB2 2001-2005 separate; within NB2 retain the checked 2004 production references and confirm the current service number by VIN. A bare shell normally omits hinges and bolts, check strap/pin, latch and cables, inside/outside handles and lock cylinder, manual or power window regulator/motor and switches, glass and guides, vent/triangle frame, mirror, speaker, harness and connectors, weatherstrips and seals, vapor barrier, trim panel and clips unless each component is itemized. MIA-0047 owns NB regulator/motor selection, MIA-0044 owns mirrors and MIA-0037 owns door-latch/lock diagnosis; this page does not collapse those branches into shell interchange. Inspect a used shell for rust at seams/drains, dents and stretched metal, folded edges, filler, repaint, welding, cracked intrusion structure, elongated hinge or check-strap holes, latch-area damage, water exposure and freight damage. Support the door during removal, use current VIN-specific Mazda body procedures for hinge/latch/glass alignment, preserve corrosion protection and verify secure latch, window travel and weather sealing. Collision-damaged pillars, sill or windshield frame require qualified measurement and repair before a replacement shell is fitted.
Aftermarket options
Prefer the exact Mazda service shell or an exact-generation/side used original with a documented donor, readable identity and repair history. A complete used door can reduce transfer work only when every included hinge, latch, handle, glass, regulator/motor, mirror, wiring, speaker, seal and trim component is itemized and proven compatible; it is not plug-and-play evidence. Repair skins require qualified body installation and preservation of the original door's inner structure, intrusion protection, hinge/latch geometry and corrosion protection. Avoid universal shells, cosmetic overlay skins presented as structural repairs, cut or rewelded hinge/latch areas, undocumented filler, cross-generation conversions and any seller claim that collapses NA, NB1 and NB2 or manual/power equipment without exact proof.
Before you buy
US/LHD NA 1990-1997 and NB 1999-2005 only; keep NA, NB1 1999-2000 and NB2 2001-2005 separate, match side and VIN/build, and confirm any 2004-2005 Mazdaspeed application in the current Mazda catalog. A bare shell does not include hinges/check strap, latch/handles, glass/regulator, mirror, wiring/speaker, seals, trim or hardware unless itemized. Inspect rust, filler, welds, intrusion structure and hinge/check/latch areas. Use qualified body work for support, alignment, corrosion protection and collision-damaged structure. Seller prices and availability are dated snapshots.
Research and fitment sources
Supersede reviewed 14 unique research sources for this guide. 8 also appear above as a seller or official action and are not repeated here; 6 additional citations follow.
Research last verified .