Mazda Parts Knowledge Center

We started writing these guides because of the phone calls. Somebody would call about a cabin air filter for a 2019 CX-5 and we would spend four minutes on the same explanation we had given eleven times that week. So we wrote it down. Then we wrote down the next one. Everything on this page is the answer a Mazda parts pro would give you across the counter, with the actual part numbers included instead of “bring the car in and we’ll look.”

Find your part number by model

The fastest way in. Find your Mazda, then the system you are working on.

Model	Guides available
Mazda CX-5	Oil filter · Engine air filter · Cabin air filter · Brake pads · Battery · Wiper sizes · Headlight bulb · Oil change interval · Accessories · Roof rack install
Mazda CX-50	Oil change interval · Wiper service mode · Accessories · Roof rack crossbars · Trailer hitch install
Mazda CX-30	Cabin air filter · Wiper blades
Mazda CX-9	Oil filter
Mazda3	Brake pads · Battery
Mazda MX-5 Miata	Brake pads · Engine air filter · Floor mats
Every Mazda	Key fob battery · Spark plugs · Paint codes · VIN decoder

Before you buy: how to choose the right part

Four questions come up before almost every purchase, so we gave each one its own page.

• OEM vs. aftermarket Mazda parts – where genuine parts are worth the money, where aftermarket is fine, and the categories we would never let a customer cheap out on. Includes live price comparisons against Mazda MSRP.
• Mazda VIN decoder – decode your 17-digit VIN to confirm model year, engine, trim and build details before you order.
• Mazda parts and accessories warranty – the actual coverage terms, including the 12-month/12,000-mile dealer-installed warranty and the lifetime limited warranty on Mazda brake pads and shoes.
• Wholesale pricing on OEM Mazda parts – for independent shops, body shops and fleets buying at volume.
• Current promo codes and discounts – what is running right now.

Oil, filters and fluids

Filters are the highest-volume thing we ship, and they are also where the most confusion lives. People mix up the two air filters constantly, and they buy oil filters by engine displacement when Mazda splits them by engine family.

• Engine air filter vs. cabin air filter – what each one does, where it lives, and why they are not interchangeable. Read this first if you are unsure which one you need.
• Mazda CX-5 oil filter – part number, change interval, and why the genuine filter matters on a Skyactiv engine.
• Mazda CX-9 oil filter – OEM part number and replacement guide for the turbo four and the older V6.
• Mazda CX-5 engine air filter – part number and how often it actually needs changing in New England driving.
• Mazda MX-5 Miata engine air filter – part numbers by generation and replacement interval.
• Mazda CX-5 cabin air filter – when to change it and a walkthrough of the glovebox job.
• Mazda CX-30 cabin air filter – part number and replacement guide.
• Mazda CX-5 oil change interval – what Mazda specifies versus what the maintenance monitor tells you.
• Mazda CX-50 oil change interval – including the turbo engine, which has its own requirements.
• How often to change spark plugs in your Mazda – intervals by engine, and the symptoms that mean you are already overdue.

Brakes

Brake pads are the one category where we will actively argue with a customer who wants to save twenty dollars. Genuine Mazda pads and shoes carry a lifetime limited warranty when a Mazda dealer installs them, which changes the math completely.

• Mazda CX-5 brake pads – front and rear part numbers by model year, replacement interval, and the OEM versus aftermarket breakdown.
• Mazda3 brake pads – OEM part numbers and replacement guide.
• Mazda MX-5 Miata brake pads – part numbers across NA, NB, NC and ND generations.

Batteries and electrical

• Mazda CX-5 battery – group size, part number and what to know about i-ELOOP and i-stop equipped cars.
• Mazda3 battery – OEM part numbers and replacement guide by generation.
• Mazda key fob battery replacement – which coin cell you need and how to open the fob without cracking it.

Wipers, lighting and visibility

• Mazda CX-5 wiper blade sizes – front and rear lengths by model year.
• Mazda CX-30 wiper blades – OEM part numbers and replacement guide.
• Mazda CX-50 wiper service mode – how to lift the arms without breaking the linkage. Do this before you change blades on a CX-50.
• 2024 Mazda CX-5 headlight bulb size – bulb types for each lighting position.

Accessories, roof racks and towing

This is the fun half of the catalog. It is also where fitment mistakes are most expensive, because crossbars and hitches are model-and-year specific and nobody wants to ship a roof rack back.

• 2024 Mazda CX-5 accessories – what Mazda actually offers, with part numbers.
• 2024 Mazda CX-50 accessories – the full genuine accessory range for the CX-50.
• Best crossbars for the Mazda CX-50 roof rack – which bars fit the factory rails and what they will carry.
• 2024 Mazda CX-5 roof rack installation – step by step, with torque notes.
• Mazda CX-50 trailer hitch install – the hitch, the harness, and what the job involves.
• Mazda MX-5 Miata floor mats – all-weather versus carpet, with part numbers.

Body, paint and collision repair

• Mazda paint codes and touch-up paint – find your three-character code, then the exact touch-up bottle part number for it. Covers Soul Red Crystal 46V, Machine Gray 46G, Polymetal Gray 47C, Jet Black 41W and the rest of the current palette.
• Genuine Mazda body parts after a collision – why insurers push aftermarket sheet metal, what you are entitled to ask for, and how OEM panels affect fit and resale.

Policies, ordering and support

• Frequently asked questions – ordering, fitment, backorders and shipping.
• Shipping policy – how and when parts ship.
• Returns policy – 30-day window on uninstalled, resaleable parts in original Mazda packaging, with a 20% restocking fee.
• Payment – accepted payment methods.
• About MazdaPartDirect.com – who we are and why a real Mazda dealer runs this site.

Frequently asked questions

How do I find the right Mazda part number for my car?

Decode your VIN first, then match the model year and engine to the part number in the relevant guide above. Mazda splits part numbers mid-model-year and by trim more often than most manufacturers, so a year-and-model lookup alone will occasionally hand you the wrong part. Our Mazda VIN decoder is the shortcut, and if anything is ambiguous, call us and we will look it up against Mazda’s catalog.

Are the parts on this site genuine Mazda parts?

Yes. Everything we sell is Genuine Mazda, ordered through Mazda’s own supply chain and shipped from Seacoast Mazda, an authorized Mazda dealer in Portsmouth, New Hampshire. We discount off Mazda MSRP, typically up to 33%, but the part in the box is the same part the factory used.

Can I return a Mazda part if I order the wrong one?

Within 30 days, yes, as long as it has not been installed and it is still resaleable in the original Mazda packaging. There is a 20% restocking fee, which is why we would rather you call us for two minutes before ordering something expensive. Full terms are on our returns policy.

Which of these guides should I read first?

If you are new to buying your own parts, start with engine air filter vs. cabin air filter and OEM vs. aftermarket Mazda parts. Those two answer most of what people call us about.

Do you add new guides?

Regularly. If there is a Mazda part or job you want written up and we have not covered it, tell us and we will put it on the list. Several of these pages exist because a customer asked.