For Eaton Char-Lynn 2000 Series. Note: Please compare your item carefully with photo and OE Number to avoid mistake!!
Displacement: 158.1 [9.65 in³/r]. Output Shaft Size: 1-1/4 in Straight - Straight Key. Case drain: 7/16-20 UNF-2B O-ring port size 4. Mounting Type: Standard, 2-Bolt Flange - With 3-1/4 In. Pilot Dia - SAE A.
875-14 UNF-2B SAE O-Ring Ports - Staggered Ports.