Description

Mazda Miata 2004 Parts Catalog – Factory Parts Breakdown

You’ve been burned by an aftermarket parts list that gave you the wrong bolt length or a bumper cover that doesn’t match your VIN. I have too. That’s why I only trust the factory book. This is the genuine Mazda Miata 2004 Parts Catalog — 21 pages of exact OEM part numbers, printed by Mazda in 2004. It covers everything from the ABS system to the convertible top. No aftermarket guesswork. You look up the part, you order it, you install it. Done.

ABS/Brakes Section: Page 237 in the Catalog

The ABS and brakes section on page 237 lists all hydraulic and electronic components. The catalog gives you the specific part number for the ABS control module, wheel speed sensors, and brake calipers. If you’re replacing an ABS sensor on a 2004 Miata, you need the factory number because aftermarket sensors often use different connectors. Page 237 also cross-references brake components by year range (1999-2000 vs 2001-2004). Order the wrong proportioning valve and your pedal feel goes straight to garbage.

What Part Numbers Does the Air Bag System List?

Page 237 also includes the air bag system. But before you even open that section, flip to page 233 and read the Special Cautions. Mazda explicitly warns that some fasteners must be replaced whenever loosened. The air bag caution label part number is BG1R-57-K93A. The catalog lists deployment loop parts, steering wheel module, and side air bag components. You don’t want to reuse a bolt on an air bag bracket. The catalog tells you which fasteners are one-time use.

3 Sections That Save You From Common Ordering Errors

Three areas trip up DIYers: the front bumper, the engine under cover, and the convertible top. The front bumper section on page 233 differentiates between turbo and non-turbo models. For 2001-04, the turbo front cover is NE46-50-031A; non-turbo is N0Y1-50-030A. Mix them up and your intercooler won’t fit. The engine under cover lists the correct shield for manual vs automatic transmissions. And the convertible top section includes the back window and the correct weatherstrip numbers. Ordering the wrong fabric top? That’s a $600 mistake. The catalog also covers the ABS system in detail. The ABS modulator part numbers are listed with applicable VIN ranges. Without that data, you might get a unit from a 1999 car that doesn’t communicate with your 2004 controller.

Use the Paint Code Location Before Ordering Body Parts

Page 233 tells you exactly where to find the paint code: on the left lock pillar. All metallic colors are clear coat. If you order a pre-painted bumper cover without knowing your paint code, you’re going to get a mismatch. The catalog lists paint code location and clear coat identification. It also includes the information labels – the fan caution label (B660-15-031), A/C caution label (99-00 NA75-61-439, 01-04 NC72-61-439), and vacuum diagram labels for each year. Don’t skip this step. I’ve seen three cars where the owner ordered the wrong shade of Sunlight Silver because they didn’t check the pillar.

Front Bumper Assembly: Part-by-Part Breakdown

The front bumper section starting on page 233 is a masterclass in component ordering. For the 1999-2000 model, there are 24 individual part numbers from the cover (NCY1-50-030D-8J, paint to match) down to the guide air (NC10-50-A21A). For 2001-04, the assemblies are grouped. You get the cover, emblem (N066-51-731), upper fasteners, grille covers, and rivets. The part numbers are year-specific. Trying to use a 2000 bumper slide on a 2004? Won’t work. The catalog gives you the exact slide part numbers for left and right (NC10-50-E11B for outer, NC10-50-E13A for inner). The catalog also lists the bumper reinforcement (NC10-50-071A), retainer (NC10-50-0K0B), and the side bumper seals (BC1M-50-0Z5). Each component has a specific fastener – speed nuts, screws, and rivets – with their own part numbers. If you lose one clip, you can order exactly that clip instead of buying a whole kit. This level of detail is why order rates are high when you stick to OEM.

The catalog is only 21 pages, but every page is packed. It covers the entire vehicle: engine/trans mounts, fuel tank, rear axle, exhaust, electrical, and even the hardtop. Each section includes part numbers with (P) for paint-to-match and quantity indicators.

Order the wrong bumper and you’re waiting a week for the right one.

For related documents, check the Mazda Miata 1990-1997 Parts Catalog if you have an NA generation car. For general torque and fluid specs, pair this catalog with the Mazda Miata 1999-2001 General Information Manual Section. If you work on other Mazda platforms, the Mazda 323 4WD Rally Parts Manual is also available.

Part numbering conventions follow standards recognized across the Automotive Industry Overview. For battery information labels, refer to the Automotive Battery entry in the catalog (page 233 lists the battery caution label FA01-69-064B).

Does this catalog include torque specs?

No. This is a parts catalog, not a service manual. It lists part numbers only.

How do I find the exact part number for my 2004 Miata’s front bumper?

The catalog breaks down the front bumper into components with separate part numbers for turbo and non-turbo models, and different years (1999-2000 vs 2001-2004). Locate the “Front Bumper” section on page 233 and match your VIN range and engine type. For 2001-04 with turbo, the cover is part NE46-50-031A. Without turbo, it’s N0Y1-50-030A. The catalog includes 24 separate items for the 1999-2000 bumper and 5 major assemblies for 2001-04. Each fastener, clip, and slide has its own part number. Ordering the wrong valance or guide can delay your repair. Cross-reference with the parts illustration to ensure compatibility.

Does this catalog cover the convertible top?

Yes, see the convertible top and back window sections in the catalog.

What should I do if I need a part number for a 2004 Miata that is not listed in this catalog?

This catalog covers all major body, chassis, interior, and engine components for the 1999-2004 Miata. If you cannot find a part, verify your vehicle’s VIN and check for supersessions. Some parts may be listed under different sections like “Rocker/Pillars/Floor” or “Rear Body”. Contact Mazda dealer for obsolete parts.

Bottom line: If you’re rebuilding a 2004 Miata, don’t rely on some third-party list. Get the factory data. Access the Factory Manual from AutoRepairManuals and have the correct part numbers at your fingertips.