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View listing at Mazdapartsnow; opens in a new tabMiata · Buyer's guide
NA/NB Miata Rear Bumper Covers, Reinforcements and License-Lamp Identification
US-market 1990-1997 NA and 1999-2005 standard/non-turbo NB Mazda Miata rear bumper-cover paths, with generation- and production-specific rear reinforcement, absorber, support and license-lamp identification. The 1998 gap year, 2004-2005 Mazdaspeed/turbo rear cover, front bumpers, non-US/RHD/JDM cars, NC/ND generations, body kits and cross-generation conversions are excluded. Checked factory collision-lamp evidence ends at 2004, so any 2005 lamp or support purchase requires VIN and installed-number confirmation.
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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What you need to know
Identify NA versus NB and standard/non-turbo versus Mazdaspeed before ordering, then separate the painted cover from reinforcement, foam/absorber, support stays, side guards/slides, splash shields, seals, fasteners and license lamps. For NB reinforcement, preserve theft-label status, production break, VIN and installed number; broad seller year ranges do not prove interchange. A cover listing may omit every support component and paint preparation. Inspect structural mounting points, rear rails, stays, distortion, corrosion, torn tabs and prior repair after a collision. Two license lamps are used; verify housing, gasket, socket, bulb, wiring and corrosion before replacement.
OEM numbers
NA: paint-to-match rear cover NAY1-50-220A-8J -> NAY1-50-220A-BBreinforcement assembly NA01-50-260 with retainer NA01-50-2J0 and RH/LH support stays NA01-50-280ANA01-50-290A. Checked NA license-lamp assembly 8BF1-51-270 is used at both positions and includes gasket FB67-51-273, socket/wire FB67-51-272 and shade FB67-51-276 in the collision guide. Standard NB: rear cover NCY1-50-220GNCY1-50-220G-8JNCY1-50-220G-8P -> NCY1-50-220G-BB. Early reinforcement example NC10-50-260D2001-2002 Mazda microfiche separates NC13 without-theft-label and NC72 with-theft-label production branches, while checked 2003-2004 America catalogs list NC13-50-260E and NC72-50-260E. NC13-50-311A is separate rear-bumper foam/absorber, not the same catalog component as the reinforcement. Checked NB license-lamp assembly NC10-51-270B is used at both positions with gasket NC10-51-273A, socket NC10-51-272 and bulb 0000-11-0194. Mazdaspeed rear cover NEY1-50-210-BB is separate and excluded.Supersession
Current Mazda dealer-catalog cover chains: NAY1-50-220A / NAY1-50-220A-8J -> NAY1-50-220A-BB; NCY1-50-220G / NCY1-50-220G-8J / NCY1-50-220G-8P -> NCY1-50-220G-BB. No universal NB reinforcement chain is asserted: NC10, NC13 and NC72 evidence contains production and theft-label branches that require VIN and installed-number confirmation. A seller-displayed NA license-lamp supersession to FB67-51-270A is not promoted as factory-verified here.
Fitment
Identify NA versus NB and standard/non-turbo versus Mazdaspeed before ordering, then separate the painted cover from reinforcement, foam/absorber, support stays, side guards/slides, splash shields, seals, fasteners and license lamps. For NB reinforcement, preserve theft-label status, production break, VIN and installed number; broad seller year ranges do not prove interchange. A cover listing may omit every support component and paint preparation. Inspect structural mounting points, rear rails, stays, distortion, corrosion, torn tabs and prior repair after a collision. Two license lamps are used; verify housing, gasket, socket, bulb, wiring and corrosion before replacement.
Aftermarket options
The checked evidence supports new OEM covers, new or used OEM reinforcements and OEM or used license-lamp assemblies. No universal aftermarket cover, bash bar, body kit or cross-generation conversion is represented as a direct replacement. Any non-OEM collision part requires material, mounting, energy-management, finish, included-hardware and road-use review.
Before you buy
This guide covers US NA and standard/non-turbo NB rear parts only; Mazdaspeed, front, non-US and conversion paths are excluded. A painted cover is not a complete bumper assembly. Verify VIN, generation, turbo status, production date, theft-label branch, installed reinforcement/absorber number, finish and listing contents. NC13-50-311A is foam/absorber in the checked Mazda catalog even though some seller pages call it a reinforcement. Do not infer universal NC10/NC13/NC72 interchange. Checked NB collision-lamp evidence ends at 2004; seller claims through 2005 require VIN and installed-number confirmation. Seller prices, inventory and freight are dated observations.
Research and fitment sources
Supersede reviewed 17 unique research sources for this guide. 9 also appear above as a seller or official action and are not repeated here; 8 additional citations follow.
Research last verified .