2014-2018 Mazda3 Rear Wiper Motor: A Guide to the Japan-Built Hatchback-Only Part
This guide clarifies the strict compatibility of the rear wiper motor for the 2014-2018 Mazda3, which only fits hatchback models built in Japan.
- This rear wiper motor (BHS2-67-450) ONLY fits 2014-2018 Mazda3 HATCHBACK models.
- Crucially, the hatchback must be BUILT IN JAPAN (VIN starts with 'J'). It will NOT fit Mexico-built cars (VIN starts with '3').
- Failure is common and symptoms include slow operation, no movement, or grinding noises.
- There are no major recalls for the rear wiper motor, but there was a recall for the front wipers on some model years.
- Replacement is a simple DIY job that takes less than an hour.
The Single Most Important Fact: Is Your Mazda3 a Japan-Built Hatchback?
Compatibility Warning: The rear wiper motor for the 2014-2018 Mazda3, OEM part number BHS2-67-450, is one of the most specific parts on this vehicle. It will ONLY fit hatchback models built in Japan. It will not fit sedans, and it will not fit hatchback models built in Mexico. There is no interchange between them. Ordering the wrong part will result in wasted time and money, as the components are physically different.
How to Tell if Your Mazda3 is Built in Japan or Mexico
Before purchasing this part, you must verify your vehicle's country of origin. This is simple to check:
- Check the VIN: Look at the first character of your Vehicle Identification Number (VIN), which is visible on a plate on the driver's side of the dashboard through the windshield, or on the sticker in the driver's door jamb.
- If the first character is a 'J', your vehicle was built in Japan.
- If the first character is a '3', your vehicle was built in Mexico.
This simple check is essential. Many parts for this generation of Mazda3 are specific to the manufacturing plant.
Symptoms of a Failing Rear Wiper Motor
When the rear wiper motor begins to fail, the signs are usually obvious. Here’s what to look for:
- Wiper is slow or struggles: The wiper arm moves much slower than it used to or seems weak. This is often the first sign of internal wear or a seized shaft.
- No movement at all: You turn on the switch, but nothing happens. This can be a completely failed motor, a blown fuse, or a wiring issue.
- Grinding or humming noises: Strange noises from the rear liftgate area when the wiper is activated point to worn or broken gears inside the motor assembly.
- Intermittent operation: The wiper works sometimes but not others, or it may stop in the middle of the glass. This can indicate a bad electrical connection or a motor that is overheating and shutting down.
- Wiper won't park correctly: After you turn it off, the wiper stops in the wrong position instead of returning to its designated resting spot at the bottom of the window.
Pro Tip: Before condemning the motor, always check the fuse for the rear wiper first. Also, try to move the wiper arm by hand (with the system off). If it feels extremely stiff or seized, the pivot shaft that passes through the glass may be corroded, which is a common issue. Lubricating this pivot can sometimes restore function, but often the damage is done and the motor has been strained to failure.
Known Issues, Recalls, and Technical Service Bulletins (TSBs)
While there was a significant recall for the front windshield wipers on 2016-2018 Mazda3 vehicles, this did not apply to the rear wiper motor. The front wiper issue was caused by a faulty relay in the Front Body Control Module (F-BCM) that could cut power to the front wiper motor. Searches for NHTSA recalls and TSBs specific to the rear wiper motor on the 2014-2018 Mazda3 did not reveal any widespread, officially recognized defects. Failures are typically due to age, wear, and environmental exposure.
Buying a Used 2014-2018 Mazda3 Rear Wiper Motor
A used OEM motor is an excellent, cost-effective choice, provided you buy the correct part and inspect it carefully. Given the strict compatibility, buying used is often safer than buying a new aftermarket part that claims universal fitment.
What to Inspect:
- Confirm the Part Number: Insist on seeing the part number BHS2-67-450 on the unit. Do not accept substitutes.
- Check the Donor Vehicle's VIN: Ask the seller for the VIN of the car it came from to confirm it was a Japan-built model (starts with 'J').
- Inspect the Electrical Connector: Look for any signs of corrosion (green or white crust), bent pins, or melted plastic. A clean connector is a good sign.
- Examine the Output Shaft: This is the splined metal shaft that the wiper arm attaches to. Check for rust, and ensure the splines are sharp and not stripped. A stripped shaft will not be able to grip the wiper arm securely.
- Look for Water Intrusion: Check the seams of the motor's plastic housing for any signs that it has been pried open or has cracks. Water getting inside is a primary cause of failure.
Cost Comparison: New vs. Used
| Part Type | Estimated Price Range |
|---|---|
| New OEM (Mazda) | $145 - $185 |
| New Aftermarket | $110 - $175 |
| Used OEM | $50 - $90 |
| Shop Labor for Installation | $80 - $120 |
Replacement Overview
Replacing the rear wiper motor on a 2014-2018 Mazda3 hatchback is a straightforward job suitable for a DIYer with basic tools.
- Difficulty: 2 out of 5
- Estimated Time: 30-45 minutes
- Tools Required: Socket set, trim removal tools, flathead screwdriver.
The basic steps involve removing the interior trim panel from the liftgate, disconnecting the electrical connector, removing the wiper arm from the outside, and then unbolting the motor itself. Many owners choose to perform a "rear wiper delete" for a cleaner aesthetic, which follows the same removal process.
🎬 Watch: How to remove the motor for a wiper deleteFrequently Asked Questions (FAQ)
Will this rear wiper motor fit my 2017 Mazda3 sedan?
No. This part is only for hatchback models. Sedans do not have a rear wiper and therefore do not use this part.
My Mazda3 is a hatchback, but the VIN starts with a '3'. Will this motor work?
No. If your VIN starts with a '3', your car was built in Mexico. You will need the specific rear wiper motor for Mexico-built models. The part numbers are different and they are not interchangeable.
Is the front windshield wiper motor the same as the rear?
No, they are completely different parts with different functions, shapes, and part numbers. The front wiper system is much more complex, involving a linkage assembly to move two arms in sync.
Can I just replace the wiper blade if the arm isn't moving?
No. A new wiper blade will only help if the motor is successfully moving the arm across the glass. If the arm is not moving, the problem is with the motor, the pivot, or the electrical supply, not the blade itself.
🎬 See this walkthrough for rear wiper installation and testingHelpful Videos
Technical Specifications
OEM Part Numbers: BHS2-67-450 BHS267450
Voltage: 12V. Fits: Japan-built hatchback models only.
We Have This Part in Stock
The information in this article is provided for general reference and educational purposes only. Vehicle specifications, procedures, and part compatibility can vary by production date, trim level, and region. Always consult your vehicle's factory service manual and verify part numbers before purchasing or performing repairs. Safety-critical components such as airbags, seat belts, and braking systems should be installed by a qualified professional.
- Mazda MAZDA3:
- 🎬 Helpful Videos
- 🛍️ Shop This Part
- The Single Most Important Fact: Is Your Mazda3 a Japan-Built Hatchback?
- How to Tell if Your Mazda3 is Built in Japan or Mexico
- Symptoms of a Failing Rear Wiper Motor
- Known Issues, Recalls, and Technical Service Bulletins (TSBs)
- Buying a Used 2014-2018 Mazda3 Rear Wiper Motor
- What to Inspect:
- Cost Comparison: New vs. Used
- Replacement Overview
- Frequently Asked Questions (FAQ)
- 🎟️ Get 5% Off