BN-843A/BN-843B/BN-843C/BN-843D/BN-843E
BN-843A BN-843B BN-843F
| Part Number | Inlet/Outlet | Sensor | Additional Info |
| BN-843A | 3 bolt in, 2 bolt tilted out | OEM# Q19, Q17, GA4, Q09 | |
| BN-843B | 3 bolt in, 2 bolt straight out | OEM# Q03, Q12, rear flanges twisted opposite | |
| BN-843C | 3 bolt in, 2 bolt out | OEM# Q04, Q13 rear flanges twisted opposite | |
| BN-843D | 3 bolt in, 2 bolt out | OEM# 008 | |
| BN-843E | 3 bolt in, 2 bolt out | OEM# 007 | |
| BN-843F | 3 bolt in, 2 bolt out | OEM # GA4 |