Looks like it's probably a cracked housing. Hard to tell for sure until you take it apart and examine it closely.
Sta-Rite Max-E-Pro & Intellipro Pump Body Assembly - 17307-0110S
www.inyopools.com
Sta-Rite Max-E-Pro Pump - INYOpools.com has the largest selection of swimming pool and spa replacement parts with over 70,000 parts in stock. Order today and save!
www.inyopools.com
The IntelliPro is the same as the Max-E-Pro 3 hp but with a variable speed motor.
Some places sell an IntelliFlo pump in a black color instead of almond color as an IntelliPro.
So, there are two versions of the IntelliPro.
How old is the pump?
If it's super old, maybe consider replacing the pump if the tank body is going to cost hunderds of dollars.
Save the old pump for parts.