Hitachi Alternator Rebuild Bits .

[discopotato03]

Hi all , does anyone happen to know the part numbers of the bearings in Hitachi LR180 alternators . I think they use NSK ones but not sure if front and back are same and what to get new .

Also if anyone knows what the difference between 80 and 90a versions is let me know , guesses alternate stator .

Thanks , A .

[V-specT]

Gday disco...

The bearings generally have a generic part number imbossed on the seal (eg 6303LLU) and the drive end bearing is almost always larger than the slipring end, with such a small difference in amperage the difference may only be the 90A version rectifies the star point of the stator while using the same stator the 80A but dont have one in front of me to confirm.

Cheer's...glen

[discopotato03]

Yep , we got the back one out yesterday and the front one on the press this afternoon . For the record this Alternator is a Hitachi LR180-724 off an I think ADM Z32 300ZX with the NA VG30DE . Just for the record the small bearing is a 6201 DW and the pulley end one a B17-102DW3 . CBC has both and I'll get some tomorrow . The style of this alternator is very similar to what the Americans get on VG30 single cam J30 Maximas (85-94) and their wreckers are full of them , and everything else you can think off . For some reason USDM Nissans got higher amp output alternators than similar ADM cars did - maybe they were larded up with all the lounge mod cons .

My Hitachi is actually for the old Dino Subie specifically because its mounts work on the old flat EA82T engines . Have to flick the rib belt pulley for a double V groove Subaru pulley and shorten up the spacer but the rest is supposed to be easy .

Still have some reg part numbers to check , cheers A .

[discopotato03]

After countless hours searching this is THE best site to find info on Hitachi and most other alternator bits .

http://www.woodauto.com/Unit.aspx?Man=HITACHI&Ref=LR180724

Very good source of part numbers ie brushes regs and bearings , the go is to scroll down to the breakdown section and click on the reference numbers in red .

Cheers Adrian

Edited February 8, 2012 by discopotato03