The 'H' , 'M' and 'L' terminals are for fan speed leads..The 'B' terminal is the power 'in' terminal, while the 'C' terminal is for the clutch,thermostat, trinary or binary switch depending on application. There is NOT a ground terminal on the switch. The motor and /or switches are normally internally or externally grounded.
| AC Delco | 1550189 |
| Bergstrom | 890072 |
| Four Seasons | 35703 |
| Frigette | 211753 |
| Global Air Inc. | SW1001 |
| Global Cool Cars | 4030Z0103 |
| Mack | 391762321G2 |
| MEI | 1150 |
| NAPA | 207426 |
| NAPA | TEM207426 |
| Omega | 2921905 |
| Omega | E965065 |
| Omega | MT1253 RED DOT 71R1150 |
| Santech | E965065 |
| Santech | MT1253 WIRING HARNESS/PLUG AVAILABLE, SEE MY EBAY ITEM # 312348352862 |