For 2018 Mazda3 models, front wiper blades are 26 inches on the driver's side and 16 inches on the passenger side. Hatchback models also have a rear wiper blade about 10 inches long; the sedan variant does not include a rear wiper.
This guide breaks down the front blade sizes, notes the rear-wiper situation for hatchbacks, and provides steps to verify and replace blades if needed.
Front wiper blade sizes
The following sizes correspond to the Mazda3’s common front wiper setup for the 2018 model year, applicable to both sedan and hatchback variants. Always confirm against your vehicle's specific build if you have access to the owner's manual or parts catalog.
- 26 inches — driver’s side blade
- 16 inches — passenger’s side blade
These sizes ensure full coverage of the windshield without overhang or gaps. If replacing blades yourself, make sure the new blades match the arm style (hook, ball joint, etc.) and fit your specific trim.
How to confirm sizes for your Mazda3
Follow these steps to verify blade lengths for your exact car:
- Check the owner's manual or a Mazda official parts diagram for the 2018 Mazda3 wiper size specification labeled for your trim (sedan vs hatchback).
- Inspect the current blades by removing them from the arms and measuring from the mounting point to the blade tip in inches.
- When in doubt, bring the old blades or the vehicle VIN to a parts store to match the exact replacement size.
Using the correct size helps ensure optimal wiping performance and prevents blade chatter or streaking.
Rear wiper blade (Mazda3 hatchback only)
The 2018 Mazda3 hatchback includes a rear wiper to improve visibility through the back window. The blade length is typically around 10 inches, though it can vary by market and trim. The sedan variant does not include a rear wiper.
Rear wiper replacement tips
To replace the rear wiper on a Mazda3 hatchback, follow these steps:
- Lift the rear wiper arm away from the window until it rests perpendicular to the glass.
- Rotate or slide off the blade from its connector according to the design (check the blade packaging for model-specific instructions).
- Attach the new blade by reversing the removal steps, ensuring it clicks securely into place.
- Lower the wiper arm back onto the window and test the wipe to confirm proper seating and clearance.
Always dispose of the old blade properly and check the new blade for proper operation after installation.
Summary
The 2018 Mazda3 front wipers use 26-inch driver-side and 16-inch passenger-side blades. Hatchbacks add a rear wiper of roughly 10 inches, while sedans do not have a rear wiper. When replacing blades, verify the sizes against the owner's manual or a Mazda parts diagram, and ensure compatibility with your wiper arm type. Regular checks help maintain clear visibility in all weather.