AND
MODEL
INDEX
BN-843A BN-843B
| Part Number | Inlet/Outlet | Sensor | Additional Info |
| BN-843A | 3 bolt in, 2 bolt tilted out | OEM# Q19, Q17, GA4 | |
| 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 |