Specialized SAR version of HO4S-3 for USCG. 9 built. 
List of Operators of HO4S-3G |
| Years | Model | Org | |
|---|---|---|---|
| 1951/66 | S-55 H-19 |  US Coast Guard |
Global Distribution of HO4S-3G |
|
Construction Numbers |
| C/N | Year | History | |
|---|---|---|---|
| 55-1110 | 1957 | 1323 | |
| 55-1111 | 1957 | 1324 | |
| 55-1116 | 1957 | 1325 | |
| 55-1117 | 1957 | 1326 | |
| 55-1125 | 1957 | 1327 | |
| 55-1126 | 1957 | 1328 | |
| 55-1135 | 1957 | 1329 | |
| 55-1136 | 1957 | 1330 | |
| 55-1146 | 1958 | 1331 |
