From the brand
Product description
Why Alternator Health Matters on Honda V6 Platforms
Once the engine is running, the alternator becomes the primary electrical power source for:
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ECU, ignition, and fuel delivery
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Variable Cylinder Management (VCM)
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Automatic transmission control
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Electric power steering
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Cooling fans and HVAC blowers
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Charging and maintaining the battery
When alternator output drops, the battery tries to compensate—briefly—and then fails early. Common symptoms include:
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Repeated dead batteries
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Charging system warnings
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Flickering headlights or dash lights
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Random drivability or electrical glitches
Replacing the alternator fixes the root cause, not the symptom.
Built to Honda OEM Charging Specs
Honda engineered these J-series platforms with tight electrical tolerances. This alternator delivers:
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Stable voltage at idle
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Consistent output with accessories running
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Proper battery recharge after starts
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Reduced long-term stress on wiring and control modules
Not oversized. Not underpowered. Exactly what the system expects.
Parameters: 6 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
Brand-New Construction for Long-Term Reliability
The ASTOU alternator features:
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New high-efficiency copper windings
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Internal voltage regulation for clean, stable output
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Precision-balanced rotor and quality bearings
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OE-style mounting points and electrical connectors
No reman internals. No mystery wear. Built for family duty and long-term ownership.
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
Why Buy from Pro Street Online?
At Pro Street Online, we sell fixes—not guesses:
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Clear vehicle-specific fitment
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Correct OEM charging output for Honda V6 platforms
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Brand new — not remanufactured
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Built for real-world daily driving
If your Honda V6 keeps killing batteries or lighting up the dash, this is the fix.
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 Acura Model:
For RL Alternator 2009 2010 2011 2012 [ V6 3.7L ]; For TL Alternator 2009 2010 2011 2012 2013 2014 [ V6 3.5L/ 3.7L ]; For MDX Alternator 2010 2011 2012 2013 [ V6 3.7L ]; For TSX Alternator 2010 2011 2012 2013 2014 [ V6 3.5L ]
For Honda Model:
For Odyssey Alternator 2008 2009 2010 [ V6 3.5L ]; For Pilot Alternator 2009 2010 2011 [ V6 3.5L ]; For Ridgeline Alternator 2009 2010 2011 [ V6 3.5L ]
Craig Verm –
Works. Hope it lasts a long time.I had to grind down a bushing on the alternator in order for the lower bolt arm to fit in its slot on the engine. I probably took a full 1/16 inch off with the bench grinder. The alternator I replaced also had the same place ground down! I guess this isn’t the first time it’s been replaced. 205k miles and ticking on this 2011 Honda Pilot.
H2Oman –
Fits Odyssey 2010. Make sure the spacer at the mount point is pushed back or it won’t fit. Other than that, worked like a charm.
Giovanny Martinez –
Well this alternator came in 2 boxes . The first box look pretty good . But when I open it to take the inside box out well that it’s damage . Once I open the inside box the pictures speak for itself.Hopefully it is works , won’t know until I install it .Thank you.
Jay T –
This is a compatible and fit alternator with my old 2010 Honda Pilot. After replacement today, the car works well as normal situation. Thanks for the great quality. 👍
Kevin Vann –
Purchased unit in Feb 2025 and it lasted until now the end of July. So it worked great for four months. If you like changing your alternator every four months this is the one for you. Bottom line, if a company knows they have a good product they will offer a warranty. If not they offer 30 days.
Colleen Franklin –
Fit great on 2011 Honda Pilot Touring. Had to smack the grommet thing on the larger bolts hole as it was out abit just but it had a bit of gap in it to be smacked. Also the nut on the that goes under the washer type connection (then you put another nut on top) was too tall so I reused the stock one.Other then them things charges great and all connections were snug and plugged in exactly how they should.
Aitee –
Still holding up after a year’s use.Not noisy and seem to work well with my battery.
Carrillo family –
It appears to be working but MEASURE YOUR OLD ALTERNATOR!One other customer review mentions having to grind down the lower mount. I show the lower mount on my old alternator (2009 Honda Odyssey), it measures ~ 0.5-1.0 mm SMALLER than the alternator for sale. This item is TOO BIG! WON’t FIT!Luckily I was able to grind down the lower mount lip AFTER going through the trouble of GETTING IT IN THERE. Using a dremel and a grinding stone…I am SO grateful that I didn’t have to take this out.LESSON LEARNED, even if you go with some other aftermarket piece, always measure. ALWAYS MEASURE.
Jaiyaks –
Good quality product
Works good and looks to be of good quality. Good value.
Melanie –
Damaged
Alternator arrived with a damaged box and the part was seized