mitmaks

Is there an alternator upgrade for ES300, a more powerful alternator that's easy to swap in?
Thanks

LeX2K

Something like this should be a direct drop in replacement although technically you should upgrade the wiring.
http://www.ebay.com/itm/190772852041

funcrusher

You can use a 4runner alternator. Search on here.

lex831

i'm not sure about the es300 but the es330 can swap some alternators from highlanders and siennas.
http://us.lexusownersclub.com/forums...wap-more-info/

LeX2K

Some info for anyone looking to upgrade their alternator. The direct swap 130amp unit is Lexus part number 27060-20190-84 this is from a 2000-2003 RX300, towing package. The unit I linked to is a rebuilt version of this. Non towing package is a 100amp unit part # 27060-20140-84 also a direct swap.

I don't see the 130amp Denso reman on Rockauto only the 100amp which is Denso 210-0439. There are several other manufacturers/rebuilders such as Remy, ACDelco TYC etc. I don't have much experience with these brands. Units from the Highlander, Sienna and just about anything with the 1MZ/3MZ engine will bolt up but you may have to swap the connector.

bigboy0723

I just replace my 80 amp alternator today with an used 2001 Lexus RX300 130 amp alternator. It is a direct fit and no mod is required. I spent about 2 hours on it, the tensionary bolt is the difficult one to align. Other than that, it is a simple bolt out and bolt in. It is still too early to say, but my head light dimming is got and my voltage stays above 14v most of the time.

funcrusher

So it looks like there's a few upgrade options to choose from. Is one the best?