| Model Code |
|---|
| P257 UNO Porting |
| P257 BSPP Porting |
| P257 SAE C61 Split Flange Porting |
| P257 BSPT Porting |
| P257 NPT Porting |
| P257 Auxiliary Mounting Pad - SAE 'A' or SAE 'B" Add-A-Pump |
| P257 Transition Cover to go from 257 to 197 |
| P257 Transition Cover to go from 257 to 124 |
| Model Code |
|---|
| P257 2 Bolt SAE 'B' Mount |
| P257 4 Bolt SAE 'B' Mount |
| P257 2/4 Bolt SAE 'B' Mount |
| P257 2 Bolt SAE 'C' Mount |
| P257 4 Bolt SAE 'C' Mount |
| P257 2/4 Bolt SAE 'C' Mount |
| Model Code |
|---|
| P257 7/8" 13 Tooth Spline Shaft |
| P257 1" 15 Tooth Spline Shaft |
| P257 1-1/4" 14 Tooth Spline Shaft |
| P257 1" Keyed Shaft |
| P257 1-1/4" Keyed Shaft |