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WAI 20288N Alternator
| Brand | WAI 20288N |
|---|---|
| 12 | 12 |
| Fan Type | Internal |
| Rotation Direction | Clockwise (right) |
| Pulley Included | Yes |
| Family | Mitsubishi |
| Pulley Groove Quantity | 6 |
| Pulley Belt Type | Serpentine |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | No |
| Amperage Rating | 100 |
| Fits | Mazda, Scion, and Toyota · 43 vehicles |
100% new unit. Not remanufactured, with proprietary components and processes for long service life.
Internal regulator. Built into the alternator for a cleaner, integrated charging setup.
100 amp output. Provides the electrical power needed for modern charging demands.
Cross-references Four Seasons 20288, 27060-WB001 and 27060-WB002 for the same application. See all 20.
WAI 20288N Alternator for Mazda and Toyota
The WAI 20288N is a 100-amp alternator built for modern electrical loads in Mazda, Toyota, and Scion applications. This 100% new unit uses internal regulation and a serpentine pulley setup to deliver stable charging performance for daily driving and accessory demand.
Key Features
- 100 amp amperage rating for OE-style charging output
- 100% new alternator, not remanufactured
- Internal fan and internal regulator design
- Clockwise rotation
- 6-groove pulley included for serpentine belt systems
- Mitsubishi family alternator construction
Product Details
WAI builds the 20288N with proprietary components and manufacturing processes to support long service life and consistent performance. The internal regulator and internal fan help simplify the design, while the included pulley and clockwise rotation match the listed vehicle applications. This part number is used across multiple Mazda MX-5 Miata, Mazda CX-5, Mazda CX-3, Mazda 6, Mazda 3, Mazda 3 Sport, Toyota Yaris, Toyota Yaris iA, and Scion iA applications, making it a direct-fit charging solution for many 2013-2025 vehicles. This part cross-references Four Seasons 20288 for the same application.
What It Helps Address
- Low battery charging caused by a weak alternator
- Dim lights or electrical instability at idle
- Charging system warning lights
- Accessory power loss under electrical load
- Starting issues related to insufficient alternator output
Installation Notes
- Verify the vehicle’s year, engine configuration, and charging system before installation.
- Confirm the application notes, including regenerative braking exclusions and build-date restrictions where listed.
- Check belt alignment and pulley groove match with the serpentine drive system.
- Inspect the battery and charging circuit after installation to confirm proper system voltage.
Quality Assurance
WAI alternators are engineered for the amperage output needed by today’s vehicles and are manufactured as new units with proprietary components and processes for durability and performance.
| Year | Make | Model | Transmission | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2025 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2024 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2023 | Mazda | CX-5 | — | — | — | N/A | Hofu Plant Built |
| 2023 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2022 | Mazda | CX-5 | — | — | — | N/A | Hofu Plant Built |
| 2022 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2021 | Mazda | 6 | — | — | — | N/A | — |
| 2021 | Mazda | CX-3 | — | — | — | N/A | — |
| 2021 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2020 | Mazda | 6 | — | — | — | N/A | — |
| 2020 | Mazda | CX-3 | — | — | — | N/A | — |
| 2020 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2020 | Toyota | Yaris | — | 1.5L | L4 | N/A | 100 Amp |
| 2019 | Mazda | 6 | — | — | — | N/A | Exc. Regenerative Braking |
| 2019 | Mazda | CX-3 | — | — | — | N/A | — |
| 2019 | Mazda | CX-5 | — | 2.5L | L4 | N/A | To 12/10/2018 |
| 2019 | Mazda | MX-5 Miata | Automatic | — | — | N/A | — |
| 2019 | Toyota | Yaris | — | 1.5L | L4 | N/A | 100 Amp |
| 2018 | Mazda | 3 | — | 2.5L | L4 | N/A | Japan Built Vehicle, Exc. Regenerative Braking |
| 2018 | Mazda | 6 | — | — | — | N/A | — |
| 2018 | Mazda | CX-3 | — | — | — | N/A | Japan Built Part, Thailand Built Part |
| 2018 | Mazda | CX-5 | — | 2.5L | L4 | N/A | — |
| 2018 | Mazda | MX-5 Miata | — | — | — | N/A | — |
| 2018 | Toyota | Yaris iA | — | — | — | N/A | 100 Amp |
| 2017 | Mazda | 3 | — | 2.5L | L4 | N/A | Japan Built Vehicle, Exc. Regenerative Braking |
| 2017 | Mazda | 6 | — | — | — | N/A | Exc. Regenerative Braking |
| 2017 | Mazda | CX-3 | — | — | — | N/A | Japan Built Part, Thailand Built Part |
| 2017 | Mazda | CX-5 | — | 2.5L | L4 | N/A | — |
| 2017 | Mazda | MX-5 Miata | — | — | — | N/A | — |
| 2017 | Toyota | Yaris iA | — | — | — | N/A | 100 Amp |
| 2016 | Mazda | 3 | — | 2.5L | L4 | N/A | Exc. Regenerative Braking |
| 2016 | Mazda | 6 | — | — | — | N/A | Exc. Regenerative Braking |
| 2016 | Mazda | CX-3 | — | — | — | N/A | Japan Built Part, Thailand Built Part |
| 2016 | Mazda | CX-5 | — | 2.5L | L4 | N/A | 100 Amp |
| 2016 | Mazda | MX-5 Miata | — | — | — | N/A | — |
| 2016 | Scion | iA | — | — | — | N/A | 100 Amp |
| 2015 | Mazda | 3 | — | 2.5L | L4 | N/A | Exc. Regenerative Braking |
| 2015 | Mazda | 6 | — | — | — | N/A | Exc. Regenerative Braking |
| 2015 | Mazda | CX-5 | — | 2.5L | L4 | N/A | 100 Amp |
| 2014 | Mazda | 3 | — | 2.5L | L4 | N/A | Exc. Regenerative Braking |
| 2014 | Mazda | 6 | — | — | — | N/A | Exc. Regenerative Braking |
| 2014 | Mazda | CX-5 | — | 2.5L | L4 | N/A | 100 Amp |
| 2013 | Mazda | CX-5 | — | — | — | N/A | 100 Amp |
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