348 2022 alternator options $1,000 Ricambi vs $100 eBay? 348

If you're talking about the denso 140 amp it won't fit without new bracketry.

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Jake what type of alternator do you have? Is it the "AC Delco type"? Mine is a 92 model and had that type and my alternator light kept coming on inexplicably. I replaced it with a cheap aftermarket alternator , same part number however, off eBay for $70 it has been working perfectly for 5 years! I'll dig up the part number when I get home. I was told by a shop that rebuilds these it is a sign that the internal voltage regulator is going bad. Unfortunately it's not like today's alternators where it pops in with a few screws and you get new carbon brushes it has to be split open and soldered in.

 

You can get 185 amp delocs out there too that fit. They all take different brackets I believe.

 

Why not send it out and have the current Denso unit rebuilt?

 

The Denso/Delco part number is on your existing alternator. You can use that to xref or search by that many sellers will list alternators compatible with the original Denso/Delco part number, not Ferrari part number.

 

Sorry...been away...will look tomorrow

 

OK I found all my info last night. My 92 348 had the original AC Delco Remy CS130 alternator. Alhough it was charging fine the light intermittently continued to come on the dash. I replaced it with an aftermarket new exact clone the part number is 7973N. Tons on ebay for $100. It is only a 105amp but do not be spooked, it works perfect. I live in Florida I run my air continuously with my lights on and there is never any dimming whatsoever. You will have to either borrow a friend's electric impact wrench or buy one from Harbor Freight like I did to change the pulley. It comes right off easily. Once the nut is off, the pulley comes off effortlessly.... no banging required. Also recommend replacing your belt mine had a chirp at start up which was caused by the original old stiff brittle belt. Part number was 138325 which is now 199822. Ricambi for that. Absolutely disconnect your battery when changing this alternator..... It is the easiest thing you will ever do to your car.

 

Also the factory alternator actually has a 4 wire plug but these year Ferrari's only used one of the 4 wires that's just how it was so don't be alarmed when you see the you see the plug only using 1 wire.

 

To clarify the original AC Delco AND the 7973N has a 4 pin plug... Ferrari only uses one of the 4.

 

Just curious is the alternator not charging or do you just have a dash light coming on? Put a Volt meter on your battery with the car running and see if it's reading above 12.8.

 

What was the part number. There is a 105amp and 140 amp Denso. The 140 has very different mounts. Never confirmed it but I suspect its the same one the 355 uses.

 

This was the "evolution" of 348's alternators:

139421.....105A DELCO..................(Superseded by 170192).................Lower Bracket 139295
148471.....105A NIPPONDENSO.......101211-5070...................................Lower Bracket 145357
155785.....105A NIPPONDENSO.......(Kit: 70000809)............................Lower Bracket 145357
156235.....140A NIPPONDENSO.......101211-7580..(Kit: 70000807).....Lower Bracket 145357

The lower brackets are same for all Nippondenso alternators. The 140 Amp Denso uses a similarly shaped but somewhat shorter upper bracket than the one on 105 Amp Densos. The parts catalogue does not show a part number for the shorter upper bracket which, it seems, came only as part of the Kit: 70000807.

I bought the 140 Amp kit some years ago (I only have a very small picture of it). In addition to the alternator, the kit included upper and lower brackets, some bolts, nuts and bushes, and the complete alternator harness.

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Sorry I have been away for a while. Yes I had to put the OEM pulley on the new after market alternator. Borrowed my neighbor's electric impact driver and it made easy work of that. Did not have to replace the plug I used the plug that was the OM original on the car which again only using one wire.

 

Honestly if you're having this much trouble locating a correct alternator I would opt to have yours rebuilt it is an easy easy job for any competent alternator rebuild shop.

 

9 out of 10 times it is only the carbon brushes that need to be replaced but shops will go ahead and replace the voltage regulator on principle.