C4390A, Shank, 2.5" Bore, 90˚ Port

2.5" Bore (internal dimension) = 3" Outer dimension. 

90 degree port, SAE#6

Comes with seals installed.

Fits C.F. Bender, Cottrell, Delavan, Sun Valley, Wally-Mo, Shipshe, & Pre-2018 Infinity Cylinders.