Wanted: Bosch 65 Amp non AC alternator
- Thread starter PaulD
- Start date
jvandyke
True Classic
I have the one I took off my '81. New adjustable voltage reg/brush holder, no pulley though (I stole it for my GM conversion). Not sure which brand the '81 was. If you want it PM me or reply back. $10? (+shipping which is probably going to be a bit, they are heavy little buggers).
rx1900
1981 X1/9
Reply
Hi Paul. My '81 FI X1/9 (no A/C ) came with a Bosch 65A alternator.
Bosch # 0 120 489 942. Same as 0 120 489 943.
It is a single pulley type with a bolt-on shroud on the back cover that takes a flexible cooling tube that goes to the side vent.
I wanted to rebuild mine, but all the through bolts were so seized it wouldn't come apart. And there were some cracks in the housing. Even if I could get it apart, as a minimum it would have needed new bearings. As I'm sure you know, these alternators are the type with a bolt-on brushes and regulator unit. Would of course had to change that too. Would have probably been $60 or so at least just for the bearings and regulator, as a minimum to rebuild myself.
I poked around Ebay and was able to find a fully rebuilt unit for $51 US with free shipping and no core charge. Concluded it wasn't worth the work to rebuild mine. Actually the rebuilt unit seemed to be quite nice quality - and it sure looks nice.
But - bad for you - the rebuilt unit came without pulley, fan, or back cover. No big deal for me - I can just swap them over from my old unit. But not so good in your case...but if you could find a dead alternator cheap to swipe them from you'd be okay.
I think that my particular alternator was used on FI X1/9s and Stradas from '80-'82. I think after that Fiat used Bosch # 0 120 489 823. Not sure what the difference - if any - is between the Bosch 942/943 and the 823. But I think that they are interchangable.
I think - but am in no way sure - that the carbed 1500s used a 55A Marelli unit. Don't know if they used a shroud.
I do know that all the A/C cars took a totally different alternator. The mounts are totally different. The A/C alternators cannot be used on a non A/C X1/9.
I still have my old alternator complete and off the car. If you would like to borrow it for test-fit on your car, just let me know. I wont be needing it for a while.
Hope this helps. Cheers, Doug
Hi Paul. My '81 FI X1/9 (no A/C ) came with a Bosch 65A alternator.
Bosch # 0 120 489 942. Same as 0 120 489 943.
It is a single pulley type with a bolt-on shroud on the back cover that takes a flexible cooling tube that goes to the side vent.
I wanted to rebuild mine, but all the through bolts were so seized it wouldn't come apart. And there were some cracks in the housing. Even if I could get it apart, as a minimum it would have needed new bearings. As I'm sure you know, these alternators are the type with a bolt-on brushes and regulator unit. Would of course had to change that too. Would have probably been $60 or so at least just for the bearings and regulator, as a minimum to rebuild myself.
I poked around Ebay and was able to find a fully rebuilt unit for $51 US with free shipping and no core charge. Concluded it wasn't worth the work to rebuild mine. Actually the rebuilt unit seemed to be quite nice quality - and it sure looks nice.
But - bad for you - the rebuilt unit came without pulley, fan, or back cover. No big deal for me - I can just swap them over from my old unit. But not so good in your case...but if you could find a dead alternator cheap to swipe them from you'd be okay.
I think that my particular alternator was used on FI X1/9s and Stradas from '80-'82. I think after that Fiat used Bosch # 0 120 489 823. Not sure what the difference - if any - is between the Bosch 942/943 and the 823. But I think that they are interchangable.
I think - but am in no way sure - that the carbed 1500s used a 55A Marelli unit. Don't know if they used a shroud.
I do know that all the A/C cars took a totally different alternator. The mounts are totally different. The A/C alternators cannot be used on a non A/C X1/9.
I still have my old alternator complete and off the car. If you would like to borrow it for test-fit on your car, just let me know. I wont be needing it for a while.
Hope this helps. Cheers, Doug
That's not correct. I removed the AC on my car and kept the original alternator. I simply changed the belt length (and may have redesigned the bracket, I don't remember-- it was 15 years ago) to accommodate the change, and everything worked just fine.