Buick 231 Engine (V6, 231 cid, 3.8L)

This Buick 231/3.8L engine/motor can fit the Park Avenue, Regal, Le Sabre, Century, Apollo, Skylark, Skyhawk, Riviera, Electra, Reatta and some other Buick car and/or truck applications - for more details see your automobile manual.

1999 - 2003

2001-2002 Buick 231
Engine Description
2001-2002 Buick 231 
Size
VIN
Price/Core
231/3.8L
1, E
$1,847/$300
2000 Buick 231
Engine Description
2000 Buick 231 
Size
VIN
Price/Core
231/3.8L
K, 1, E, 7, 2, 4
$1,847/$300
1999 Buick 231
Engine Description
1999 Buick 231 
Size
VIN
Price/Core
231/3.8L
1
$2,080/$300
1999-2000 Buick 231
Engine Description
1999-2000 Buick 231 
Size
VIN
Price/Core
231/3.8L
1, K, 7
$2,080/$300
Top

1997 - 1998

1997 Buick 231
Engine Description
1997 Buick 231 
Size
VIN
Price/Core
231/3.8L
K, 1, 7
$1,847/$250
1998 Buick 231
Engine Description
1998 Buick 231 
Size
VIN
Price/Core
231/3.8L
1
$1,847/$250
Top

1996 - 1998

1996-1998 Buick 231
Engine Description
1996-1998 Buick 231 
Size
VIN
Price/Core
231/3.8L
1, 7
$2,080/$300
Top

1995 - 1996

1995 Buick 231 FWD, 3800,  balance shaft, roller cam
Engine Description
1995 Buick 231 FWD, 3800, balance shaft, roller cam
Size
VIN
Price/Core
231/3.8L
K, 7
$1,847/$250
1995 Buick 231 FWD, 3800, LN3, balance shaft, roller cam, no vent hole left intake side head.
Engine Description
1995 Buick 231 FWD, 3800, LN3, balance shaft, roller cam, no vent hole left intake side head.
Size
VIN
Price/Core
231/3.8L
L, 7
$1,807/$200
Top

1994

1994 Buick 231 FWD, 3800,  balance shaft, roller cam
Engine Description
1994 Buick 231 FWD, 3800, balance shaft, roller cam
Size
VIN
Price/Core
231/3.8L
L, 7
$1,847/$200
Top

1993

1993 Buick 231 FWD, 3800, balance shaft, roller cam, 3/4" vent hole on left intake side head.
Engine Description
1993 Buick 231 FWD, 3800, balance shaft, roller cam, 3/4" vent hole on left intake side head.
Size
VIN
Price/Core
231/3.8L
L, 7
$1,847/$200
Top

1991

1991 Buick 231 FWD, 3800, balance shaft, roller cam, without 3/4" pcv hole on intake face
Engine Description
1991 Buick 231 FWD, 3800, balance shaft, roller cam, without 3/4" pcv hole on intake face
Size
VIN
Price/Core
231/3.8L
C, 7
$1,752/$200
1995 Buick 231
Engine Description
1995 Buick 231 
Size
VIN
Price/Core
231/3.8L
1, 7
$1,974/$300
Top

1990 - 1992

1991 Buick 231 FWD, 3800, balance shaft, roller cam, 3/4" vent hole on left intake side.
Engine Description
1991 Buick 231 FWD, 3800, balance shaft, roller cam, 3/4" vent hole on left intake side.
Size
VIN
Price/Core
231/3.8L
L, 7
$1,807/$200
Top

1988 - 1990

1988 Buick 231 FWD, 3800, balance shaft, roller cam, with oil pump kit only.
Engine Description
1988 Buick 231 FWD, 3800, balance shaft, roller cam, with oil pump kit only.
Size
VIN
Price/Core
231/3.8L
C, 7
$1,752/$200
Top

1987 - 1988

1987 Buick 231 FWD, roller cam, No distributor, oil pump driven by splines. 7/16" Dia. dipstick tube, GM dipstick P/N 25531505, tube P/N 25531507.  With oil pump kit only.
Engine Description
1987 Buick 231 FWD, roller cam, No distributor, oil pump driven by splines. 7/16" Dia. dipstick tube, GM dipstick P/N 25531505, tube P/N 25531507. With oil pump kit only.
Size
VIN
Price/Core
231/3.8L
3
$1,450/$225
Top

1986

1986 Buick 231 FWD,  roller cam, no distributor, oil pump driven by splines. 3/8" Dia. dipstick tube, GM dipstick P/N 25524028, tube P/N 2557337. With oil pump kit only.
Engine Description
1986 Buick 231 FWD, roller cam, no distributor, oil pump driven by splines. 3/8" Dia. dipstick tube, GM dipstick P/N 25524028, tube P/N 2557337. With oil pump kit only.
Size
VIN
Price/Core
231/3.8L
3
$1,450/$225
1986 Buick 231
Engine Description
1986 Buick 231 
Size
VIN
Price/Core
231/3.8L
7
$1,490/$300
1986 Buick 231 FWD, 20 bolt pan, without distributor.  With oil pump kit only.
Engine Description
1986 Buick 231 FWD, 20 bolt pan, without distributor. With oil pump kit only.
Size
VIN
Price/Core
231/3.8L
B
$1,418/$225
1986-1987 Buick 231 RWD, 20 bolt pan, Fits turbo and non turbo. With oil pump kit only.
Engine Description
1986-1987 Buick 231 RWD, 20 bolt pan, Fits turbo and non turbo. With oil pump kit only.
Size
VIN
Price/Core
231/3.8L
A
$1,288/$225
Top

1985

1985 Buick 231 RWD, 14 bolt pan
Engine Description
1985 Buick 231 RWD, 14 bolt pan
Size
VIN
Price/Core
231/3.8L
A
$1,304/$200
Top

1984 - 1985

1984 Buick 231
Engine Description
1984 Buick 231 
Size
VIN
Price/Core
231/3.8L
9
$1,490/$300
1984 Buick 231 FWD, 20 bolt pan, uses distributor.  With oil pump kit only.
Engine Description
1984 Buick 231 FWD, 20 bolt pan, uses distributor. With oil pump kit only.
Size
VIN
Price/Core
231/3.8L
3
$1,304/$200
1984 Buick 231 RWD, 20 bolt pan
Engine Description
1984 Buick 231 RWD, 20 bolt pan
Size
VIN
Price/Core
231/3.8L
A
$1,304/$200
Top

1982 - 1983

1983 Buick 231
Engine Description
1983 Buick 231 
Size
VIN
Price/Core
231/3.8L
3
$1,467/$250
Top

1979 - 1983

1979 Buick 231 RWD, 14 bolt pan
Engine Description
1979 Buick 231 RWD, 14 bolt pan
Size
VIN
Price/Core
231/3.8L
A, 3
$1,285/$200
Top

1978

1978 Buick 231 Even fire, without smog.
Engine Description
1978 Buick 231 Even fire, without smog.
Size
VIN
Price/Core
231/3.8L
G
$1,304/$225
1979 Buick 231 RWD, Turbo with 1/2" hole in back of lifter gallery,  with detonation sensor oil pump kit only.
Engine Description
1979 Buick 231 RWD, Turbo with 1/2" hole in back of lifter gallery, with detonation sensor oil pump kit only.
Size
VIN
Price/Core
231/3.8L
3
$1,467/$250
Top

1977 - 1978

1978 Buick 231 Even fire, without smog.
Engine Description
1978 Buick 231 Even fire, without smog.
Size
VIN
Price/Core
231/3.8L
A, G
$1,304/$225
1977 Buick 231 Odd Fire, without smog.
Engine Description
1977 Buick 231 Odd Fire, without smog.
Size
VIN
Price/Core
231/3.8L
C
$1,496/$225
Top

1975 - 1976

1975 Buick 231 Odd Fire, without smog.
Engine Description
1975 Buick 231 Odd Fire, without smog.
Size
VIN
Price/Core
231/3.8L
C
$1,496/$225
Top

For troubleshooting tips and repair information on the Buick 231/3.8L engine, please visit our Information page.