Yes the B16A2, B16A3, B17a, B18B and B18C all use the same oil dip stick P/N: 15650-P30-000.
The B18A uses the P/N: 15650-PR3-000 which if I had access to I'm sure the 1st gen B16A's would be the same. Also PR3 was superseded by the P30.

The B20 is the only one that uses a different part number.

Hope this helps.