Denso Alternator

I Google searched that number on the Amazon link and found this on BBdart.com

90 amp ND is part number 121000-3490
120 amp ND is part number 100211-603 and 100211-605
140 amp ND is part number 101211-7780

Hopefully, it will help someone down the road.

Just be aware, the 120amp is thicker than the 70/90amp.

I actually still have a 120amp sitting on the shelf because the backing was just a little too thick to clear my edelbrock heads with MT valvecovers. The 70amp fits no issues