Confirmed Vehicle Fitment
Compatible with the following Toyota gasoline applications:
Toyota
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Sienna — 2007–2016 — 3.5L V6
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Highlander — 2011–2016 — 3.5L V6
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Venza — 2010–2015 — 3.5L V6
Electrical Specifications
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Voltage: 12V
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Output: 150 Amps (High Output)
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Rotation: Clockwise (CW)
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Pulley: 7-Groove
⚠️ Always confirm engine size and OE reference before ordering.
Product description
Why Alternator Health Matters on Toyota V6 Platforms
Once running, the alternator is the primary power source for:
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Engine management and ignition
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AWD/traction systems
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Power steering and braking electronics
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Power sliding doors and liftgates
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HVAC, infotainment, and safety tech
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Charging and maintaining the battery
When output drops, the battery tries to cover the gap—briefly—and then fails early. Symptoms usually include repeated dead batteries, flickering headlights, charging warnings, and random electrical gremlins. Replacing the alternator fixes the root cause, not the symptom.
Why 150 Amps Is the Right Call
Toyota engineered these vehicles for high electrical demand, especially minivans and SUVs. A 150-amp alternator provides:
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Strong charging at idle
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Stable voltage with accessories running
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Faster battery recovery after cold starts
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Reduced long-term stress on wiring and modules
High output where it matters—without overloading the system.
Built New for Long-Term Reliability
The ASTOU alternator features:
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New high-efficiency copper windings
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Internal voltage regulator for consistent output
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Precision-balanced rotor and heavy-duty bearings
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OE-style mounting points and electrical connectors
The 7-groove pulley ensures proper belt engagement and quiet operation—because belt squeal isn’t a premium feature.
Parameters: 7 Groove Pulley is compatible with the original equipment belt, and the high-specification material ensures the belt runs well. NOTE: Please make sure to connect correctly. Improper installation may cause the belt to be twisted incorrectly
Why Buy from Pro Street Online?
At Pro Street Online, we sell solutions, not guesses:
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Vehicle-specific fitment
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Correct amperage for Toyota 3.5L platforms
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Brand new—not remanufactured
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Built for daily driving and long-term ownership
If your Toyota keeps killing batteries, this alternator stops the cycle.
Ensure that the installation conditions of the original equipment are fully matched. There is a bolt protection bushing at the bracket installation position. The bushing of some models may be 0.05-0.10mm higher. It is not incompatible and can be adjusted appropriately
The solid shell protection is the prerequisite for driving in harsh environment, and the alloy die-cast shell provides ASTOU Alternator with more stable power generation
The PC material interface has a high melting point and excellent heat resistance, oil resistance, and aging resistance, ensuring the reliability and durability of the interface in harsh environments
Replacement List
For Lexus Model:
2013 2014 2015 2016 2017 2018 ES350 3.5L; 2010 2011 2012 2013 2014 2015 RX350 3.5L
For Toyota Model:
2008 2009 2010 2011 2012 2013 2014 2015 2016 Highlander 3.5L; 2009 2010 2011 2012 RAV4 3.5L; 2007 2008 2009 2010 2011 2012 2013 2014 2015 2016 Sienna 3.5L; 2009 2010 2011 2012 2013 2014 2015 2016 Venza 3.5L
OEM Replacement List
104210-5510; 104210-5511; 104210-5512; 27060-0P210; 27060-0P240; 27060-0P241; 27060-0P241-84; 11326; 12865; 94757; AL3364X
David Durbin –
I have a 08 toyota sienna and the alternator works great and a lot cheaper than a parts store
B. Kirin –
Perfect fit. Installed on 2011 Sienna Limited AWD. Exact mounting brackets. Pulley is a little longer but has no effect on install or running. Put out 14.59V first start after install. Super fast shipping (2-days). Usually but from Rockauto but they were $90 more with shipping and would take extra 6 days to get. No complaints and works great! Definitely best value for your money. Fasted delivery in the business.
Said MADI –
After installing it, it did not function as anticipated, and I subsequently returned it.
David –
This part fits perfectly my vehicle is running great. I saved so much money and the Toyota dealership quoted me a price of $440 Ha 😂 not today
Mayra Tostado –
I bought this alternator for my 2013 Sienna and so far it’s been a few months and my van running. Value for money is definitely there and quality is good.
Harry Smithey –
Works great on my 2011 Toyota sienna van. You need to watch videos on install, it’s takes a bit skill on our van.
roy becker –
Works perfect just the way it should
William Hassell –
Delivery was great and on time. Unfortunately the alternator is not the right one for my vehicle. That is my fault. Amazon you are fantastic & thank you for your service.
Ayush S. –
Inferior Quality Product
Hello! I used this product for my 2008 Sienna. The product is just at par with the specifications. The voltage generated is low around 13.7v without load, and with accessories ON 13.3v. A new alternator should be around 14v. It produces just enough to get the battery light out of the instrument panel. I have already installed it so won’t be returning it but I’ll repair my original one and keep as a backup.