| Yr | Cyl | Desc | UNIV | DF | PK | | 1990-1991 | 6 | All models with 3.3L engine | 6905 | 4589 | N/A |
| 1990-1991 | 4 | All models with 2.5L engine; Alternate Direct Fit 4998 may be used | 6904 | 4595 | N/A |
| 1990-1991 | 4 | All models with 2.3L engine | 6905 | 4413 | PK-180 |
| 1989 | 6 | All models with 3.3L engine | 6905R | N/A | N/A |
| 1988-1989 | 4 | All models with 2.3L engine | 6905 | N/A | N/A |
| 1985-1988 | 6 | All models with 3.0L engine; Direct Fit unit may require sizing or use of included pipe bushings | 6904 | 4117 | PK-92 |
| 1985-1989 | 4 | All models with 2.5L engine; Direct Fit unit may require sizing or use of included pipe bushings | 6904 | 4117 | PK-92 |