2021 Mazda 3(681 parts)

All parts for your vehicle

Pick your trim in My Garage — better matches across the catalog.

Shop by Problem

Brakes squeaking?Brakes squeaking or grinding?AC not cold?AC not blowing cold?Check engine light?Check engine light on?

Other Mazda 3 Years

2022 2020 2023 2019 2024

2021 Mazda 3(681 parts)

All parts for your vehicle

Pick your trim in My Garage — better matches across the catalog.

Which trim do you have?

Brakes, exhaust, wheels, and suspension can vary by trim. Picking yours means we only show what actually fits — mats, wipers, and covers show regardless.

Browse all categories

Every category we carry for this vehicle, organized by system.

Maintenance & fluids

Shop by Problem

Brakes squeaking?Brakes squeaking or grinding?AC not cold?AC not blowing cold?Check engine light?Check engine light on?

Other Mazda 3 Years

2022 2020 2023 2019 2024

Which trim do you have?

Brakes, exhaust, wheels, and suspension can vary by trim. Picking yours means we only show what actually fits — mats, wipers, and covers show regardless.

Browse all categories

Every category we carry for this vehicle, organized by system.

Maintenance & fluids

Maintenance, care & accessories

Fits any vehicle — oil, washes, waxes, and tools.

Oil & Fluids

See all →

Mobil 1

Part # 44925

Mobil 1 V-Twin 20W-50 Synthetic Motorcycle Oil (1 Quart)

Frequently Asked Questions

Do these parts fit my 2021 Mazda 3?

This page groups parts listed for the 2021 Mazda 3. Some products fit every trim, while others depend on submodel, engine, drivetrain, or brake package. Use your trim in My Garage or the product page fitment check to confirm exact fit.

What are the most popular parts for the 2021 Mazda 3?

The most popular categories for the 2021 Mazda 3 include Brake Rotors, Wiring & Electrical, Brake Pads, and Oil & Fluids. Browse our full selection to find the exact parts you need for your vehicle.

How fast do 2021 Mazda 3 parts ship?

Most in-stock items ship within 1-2 business days. Shipping rates are calculated at checkout based on your location.

What warranty do your 2021 Mazda 3 parts come with?

Warranty coverage varies by manufacturer but typically ranges from 1 year to lifetime. Each product page includes specific warranty information from the manufacturer.