The PX650 is a specially designed filter for the Hart and DFV March/DFV3000 Formula race engines.
PX650 components are available as filter elements, baseplates or complete kits.

| Part No. | Application | Description | BHP Rating |
|---|---|---|---|
| 6501 | Hart 420 | 6510 / 6514 x 1 | 300 |
| 6502 | DFV F3000 | 6510 / 6515 x 2 | 505 |
| 6503 | DFV March 90 deg. lug | 6512 / 6511 x 2 | 590 |
| 6504 | DFV F3000 90 deg. lug | 6512 / 6513 x 2 | 610 |
| Part No. | Application | Description |
|---|---|---|
| 6510 | DFV Hart / F3000 | Blank |
| 6512 | DFV March / F3000 | Blank 90 deg. lug |
| Part No. | Application | Description | BHP Rating |
|---|---|---|---|
| 6514 | Hart | 65mm height | 300 |
| 6511 | DFV March | 65mm height / 90 deg. lug | 290 |
| 6515 | DFV F3000 | 100mm height | 390 |
| 6513 | DFV F3000 | 100mm height / 90 deg. lug | 410 |