Diodes: 6-35 Ampere
Diameter OD: 118mm
With M5×31mm Mounting Bolt
With Trio
| Brand | Number |
| GPD | HHR721 |
| YUNYI | 12516800 / HI11803F |
| WAI / TRANSPO | IHR721 |
| WAI / TRANSPO | IHR721-1 |
| WAI / TRANSPO | IHR721HD |
| WAI / TRANSPO | IHR721HD-1 |
| WAI / TRANSPO | 31-8133 |
| WAI / TRANSPO | 31-8133-1 |
| WAI / TRANSPO | 31-8144 |
| AS | ARC2009 |
| CQ | CQ1080118 |
| REAL | 21145301BN |
| SANDO | SRC20103 |
| CARGO | 135037 |
| CASCO | CRC20103AS |
| WOODAUTO | RTF49875 |
| UNIPOINT | REC-657 |
| POWERMAX | 81115284 |
| NEW-ERA | D-061 |
| CIVIC/DA PARTS | 500375 |
| ASHDOWN INGRAM | RFX2048 |
| ERA | 215432 |
| ERA | 215433 |
| MOBILETRON | RH-15 |
| MOBILETRON | RH-15C |
| HITACHI | L160-23202 |
| HITACHI | L160-43202 |
| HITACHI | L170G-33202 |
| HITACHI | LR170-404 |
| NISSAN | 23230-10G00 |
| NISSAN | 23230-57J03 |
| NISSAN | 23230-V7200 |
| NISSAN | 23232-10G00 |
| NISSAN | 23245-V7200 |
