| Yr | Cyl | Desc | UNIV | DF | PK | | 1990-1992 | 6 | All Sovereign models with 4.0L | 2904 | N/A | N/A |
| 1990-1994 | 6 | All XJ6 models with 4.0L engine, Rear Left or Right | 2904 | N/A | N/A |
| 1990-1994 | 6 | All XJ6 models with 4.0L engine, Front Left or Right | 6904R | N/A | N/A |
| 1988-1989 | 6 | All XJ6 models with 3.6L engine. Rear | 8010 | N/A | N/A |
| 1988-1989 | 6 | All XJ6 models with 3.6L engine. Front | N/A | N/A | N/A |
| 1981-1987 | 6 | All XJ6 models with 4.2L engine. Rear | 8010 | 9290 | N/A |
| 1980-1993 | 12 | All XJS models, Rear Left or Right | 2904 | N/A | N/A |
| 1980-1993 | 12 | All XJS models, Front Left or Right | 6904R | N/A | N/A |
| 1978-1979 | 12 | All XJS or XJ12 models, Left or Right | 6904R | N/A | N/A |
| 1978-1987 | 6 | 1978 - 05/1987, all XJ6 models with 4.2L engine and 23 3/4" converter, Front | N/A | 4844 | N/A |
| 1976-1977 | 12 | All XJS models, Left or Right | 6904R | N/A | N/A |
| 1975-1977 | 12 | All XJ12 models, Left or Right | 6904R | N/A | N/A |
| 1975-1979 | 6 | All XJ6 modesl with 4.2L engine; Replaces rear original system that consists of three pieces | 8010 | 9290 | N/A |