/live/media/WW/WW_11577N_Fro.jpg)
OE Quality
60-Day Returns
WAI 11577N Alternator
WAI 11577N Alternator for Toyota Matrix and Corolla
The WAI 11577N is a 110 amp alternator built for Toyota charging-system applications that need stable electrical output for modern vehicle loads. It is a 100% new unit, not remanufactured, and uses proprietary components and manufacturing processes to support long service life and consistent performance.
Key Features
- 110 amp amperage rating for dependable charging output
- 100% new alternator construction, not remanufactured
- Internal fan and internal voltage regulator
- Clockwise (right) rotation
- 6-groove pulley for serpentine belt systems
- Pulley included with decoupled or clutch pulley design
- DENSO family application
Detailed Description
WAI 11577N is an alternator engineered for Toyota Matrix and Toyota Corolla charging-system service where OE-style fit and electrical output matter. This unit uses an internal regulator, internal fan, and a serpentine belt pulley setup to match the requirements of the listed applications. For drivers searching for a Toyota Matrix alternator or Toyota Corolla alternator, this part number provides a direct replacement option for the specified vehicles and model years.
This part cross-references BBB Industries 11577 for the same application.
What It Helps Solve
- Low battery charging caused by a weak alternator
- Battery warning light concerns related to charging output
- Dim lights or electrical instability under vehicle load
- Charging-system failures on Toyota Matrix and Corolla applications
- Noise or belt-drive issues tied to a worn alternator pulley assembly
Installation Notes and Tips
Fits 2011-2014 Toyota Matrix, N/A. Fits 2011-2013 Toyota Corolla, N/A, exc. Japan built, 100 to 110 amp, supplied as 110 amp. Confirm pulley alignment, connector style, and belt routing before installation. Verify the vehicle’s charging-system specifications against the listed amperage and application notes, especially on Corolla models with the Japan-built exclusion.
Quality Assurance
WAI states that this alternator is manufactured as a new unit using proprietary components and processes to support maximum life and performance. The 11577N is built for the electrical demands of today’s vehicles and is intended to deliver the specified amp output for the listed Toyota applications.
| Brand | WAI |
|---|---|
| Part Number | 11577N |
| 12 | 12 |
| Fan Type | Internal |
| Rotation Direction | Clockwise (right) |
| Pulley Included | Yes |
| Family | Denso |
| Pulley Groove Quantity | 6 |
| Pulley Belt Type | Serpentine |
| Regulator Type | Internal |
| Decoupled Or Clutch Pulley | Yes |
| Amperage Rating | 110 |
This part fits 7 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2014 | Toyota | Matrix | N/A | |||
| 2013 | Toyota | Corolla | 1.8L | L4 | N/A | Exc. Japan Built, 100 to 110 Amp, Supplied as 110 Amp |
| 2013 | Toyota | Matrix | 1.8L | L4 | N/A | |
| 2012 | Toyota | Corolla | 1.8L | L4 | N/A | Exc. Japan Built, 100 to 110 Amp, Supplied as 110 Amp |
| 2012 | Toyota | Matrix | 1.8L | L4 | N/A | |
| 2011 | Toyota | Corolla | 1.8L | L4 | N/A | Exc. Japan Built, 100 to 110 Amp, Supplied as 110 Amp |
| 2011 | Toyota | Matrix | 1.8L | L4 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.