Alternator Bosch or Denso

Replaced with OE spec brand new ones TWICE and it didn\u2019t fix the problem. Ended up buying a brand new Denso OEM on Amazon or eBay. I don\u2019t remember which and it fixed the problem for five years now.

Just replaced the original alternator on mine last weekend. Battery light came on while running errands, managed to get it home without issue. The next day battery was completely drained. Charged it up, as soon as I reconnected the battery terminals I had a 10 amp draw (car was off) and the alternator started smoking. Put a reman Denso in and all is well a week later.

Reman Denso from Advance thru WorldPak 210-1054. Same day, maybe 30 minute install. Never looked back and better than a used one with unknown history IMO!

just get a denso reman.

If you can go Denso, just go with that regardless of reman or new. The ACDelco will probably be fine, too.

Fcp euro, Bosch alternator for less than $400 including core charge, free shipping. Lifetime replacement. Believe it’s 5% off 250+ currently as well. Bosch is the OE supplier, no aftermarket concerns.

I ended up getting a new Bosch AL49X from Bavarian Autosport (back in the day). IIRC, I needed to purchase a new pulley and fan since the old ones were Valeo and incompatible with Bosch. I sort of remember also needing a different / non-standard belt length.

Replace the alternator. The battery light indicates the battery is not being charged (due to bad alternator), losing power steering is also a sign of bad alternator as it provides the power for it to function. O'Reilly battery test also confirms this as battery should read 13-14V if it's being charged by the alternator. Recommend going with OEM alternator or name branded aftermarket like Denso which is the OEM supplier for reliability reasons. This should fix most of your issues.

13V is normal for a stock Bosch alternator. There are 14V or adjustable voltage regulator available as a replacement.

I had a bosch alternator in my Mark 2.. 8valve motor. I noticed the battery was not being charged. so instead of dealing with the voltage regulator or brushes etc, b/c the unit was old I decided to go with a brand new one. making me think i should have ponied up to the Bosch.