| Manufacture | Number |
| Bosch Automotive | 13469 |
| Delphi | ES20161 |
| Denso | 234-4706 |
| NTK | 24578 |
| Year | Make | Model | Engine | Notes |
| 1999 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 1999 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 1999 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2000 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2000 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2000 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2000 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2000 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2001 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2001 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2001 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2001 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2001 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2002 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2002 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2002 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2002 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2002 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2002 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2003 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2003 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2003 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2003 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2003 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2004 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2004 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| 2004 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Downstream Sensor |
| Year | Make | Model | Engine | Trim | Notes |
| 1999 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Base Sport Utility 4-Door | Downstream Sensor |
| 1999 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | L Sport Utility 4-Door | Downstream Sensor |
| 1999 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | S Sport Utility 4-Door | Downstream Sensor |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | L Coupe 2-Door | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | L Sedan 4-Door | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | L Wagon 4-Door | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.2L 2212CC H4 GAS SOHC Naturally Aspirated | Outback Wagon 4-Door | Downstream - w/Federal Emissions |
| 1999 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Coupe 2-Door | Downstream Sensor |
| 2000 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Base Sport Utility 4-Door | Downstream Sensor |
| 2000 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | L Sport Utility 4-Door | Downstream Sensor |
| 2000 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | S Sport Utility 4-Door | Downstream Sensor |
| 2000 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Coupe 2-Door | Downstream Sensor |
| 2000 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | Downstream Sensor |
| 2001 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Base Sport Utility 4-Door | Downstream Sensor |
| 2001 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | L Sport Utility 4-Door | Downstream Sensor |
| 2001 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | S Sport Utility 4-Door | Downstream Sensor |
| 2001 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Coupe 2-Door | Downstream Sensor |
| 2001 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | Downstream Sensor |
| 2002 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Base Sport Utility 4-Door | Downstream Sensor |
| 2002 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | L Sport Utility 4-Door | Downstream Sensor |
| 2002 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | S Sport Utility 4-Door | Downstream Sensor |
| 2002 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Outback Wagon 4-Door | Downstream Sensor |
| 2002 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | Downstream Sensor |
| 2002 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | TS Wagon 4-Door | Downstream Sensor |
| 2003 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | X Sport Utility 4-Door | Downstream Sensor |
| 2003 | Subaru | Forester | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | XS Sport Utility 4-Door | Downstream Sensor |
| 2003 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Outback Wagon 4-Door | Downstream Sensor |
| 2003 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | Downstream Sensor |
| 2003 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | TS Wagon 4-Door | Downstream Sensor |
| 2004 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | Outback Wagon 4-Door | Downstream Sensor |
| 2004 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | RS Sedan 4-Door | Downstream Sensor |
| 2004 | Subaru | Impreza | 2.5L 2458CC H4 GAS SOHC Naturally Aspirated | TS Wagon 4-Door | Downstream Sensor |