Buick

Riviera

Yr	Cyl	Desc	UNIV	DF	PK
1996-1998	6	All models with 3.8L 1 or K engine except California	2539	N/A	N/A
1994-1995	6	All models with Super Charged engine	6906	4791	N/A
1991-1993	6	All models with 3.8L engine; direct fit unit may require sizing	6006	4382	PK-64
1988-1990	6	All models with 3.8L engine; direct fit unit may require sizing or use of included pipe bushings	6904	4117	PK-92
1986-1987	6	All models with 3.8L engine	6905	4120	PK-98
1984-1985	8	All models with 5.0L - 307 cid engine	6005	4119	PK-24
1984-1985	6	All models with 3.8L Turbo engine	6005	4112	PK-91
1984	6	All models with 4.1L engine	6005	4112	PK-91
1981-1983	8	All models with 5.0L- 307 cid engine	6005	4111	PK-85
1981-1983	6	All models with 3.8L Turbo engine	6005	4112	PK-91
1981-1983	6	All models with 4.1L engine	6005	4111	PK-85
1980	8	All models with 5.7L R engine	6905	N/A	PK-83
1979-1980	6	All models with 3.8L Turbo engine	6906	4104	PK-81
1977-1979	8	All models with 350 cid engine	6906	4104	PK-81
1977-1979	8	All models with 403 cid engine	8006	9104	PK-81
1975-1976	8	All models with 455 cid engine	8006	9103	PK-79