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Engines, Transmissions & Parts

Discover our extensive inventory of 2,794 tested, high-quality used OEM Buick parts. Every component is rigorously inspected with exact mileage-based pricing, 90-day warranty, and nationwide shipping.

2,794
Total Parts in Inventory
24
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90 Days
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1981 Buick Regal Somerset (1984 Down) Engine - 8-267 (4.4L, VIN J, 8th digit)

1981 Buick Regal Somerset

SKU P-865

engine

1981 Buick Regal Somerset (1984 Down) Engine - 8-267 (4.4L, VIN J, 8th digit)

$799$599–$999 by mileage
1981 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 8th digit)

1981 Buick Regal Somerset

SKU P-866

engine

1981 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 8th digit)

$799$599–$999 by mileage
1981 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1981 Buick Regal Somerset

SKU P-867

engine

1981 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 8th digit)

1982 Buick Regal Somerset

SKU P-868

engine

1982 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 8-265 (4.3L, VIN S, 8th digit)

1982 Buick Regal Somerset

SKU P-869

engine

1982 Buick Regal Somerset (1984 Down) Engine - 8-265 (4.3L, VIN S, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 8-267 (4.4L, VIN J, 8th digit)

1982 Buick Regal Somerset

SKU P-870

engine

1982 Buick Regal Somerset (1984 Down) Engine - 8-267 (4.4L, VIN J, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 8th digit)

1982 Buick Regal Somerset

SKU P-871

engine

1982 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1982 Buick Regal Somerset

SKU P-872

engine

1982 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit)

1982 Buick Regal Somerset

SKU P-873

engine

1982 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 6-252 (4.1L, VIN 4, 8th digit)

1982 Buick Regal Somerset

SKU P-874

engine

1982 Buick Regal Somerset (1984 Down) Engine - 6-252 (4.1L, VIN 4, 8th digit)

$799$599–$999 by mileage
1982 Buick Regal Somerset (1984 Down) Engine - 6-260 (4.3L, diesel, VIN V, 8th digit)

1982 Buick Regal Somerset

SKU P-875

engine

1982 Buick Regal Somerset (1984 Down) Engine - 6-260 (4.3L, diesel, VIN V, 8th digit)

$799$599–$999 by mileage
1983 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 8th digit)

1983 Buick Regal Somerset

SKU P-876

engine

1983 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 8th digit)

$799$599–$999 by mileage
1983 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1983 Buick Regal Somerset

SKU P-877

engine

1983 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1983 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit)

1983 Buick Regal Somerset

SKU P-878

engine

1983 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit)

$799$599–$999 by mileage
1983 Buick Regal Somerset (1984 Down) Engine - 6-252 (4.1L, VIN 4, 8th digit)

1983 Buick Regal Somerset

SKU P-879

engine

1983 Buick Regal Somerset (1984 Down) Engine - 6-252 (4.1L, VIN 4, 8th digit)

$799$599–$999 by mileage
1983 Buick Regal Somerset (1984 Down) Engine - 6-260 (4.3L, diesel, VIN V, 8th digit)

1983 Buick Regal Somerset

SKU P-880

engine

1983 Buick Regal Somerset (1984 Down) Engine - 6-260 (4.3L, diesel, VIN V, 8th digit)

$799$599–$999 by mileage
1983 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 8, 8th digit)

1983 Buick Regal Somerset

SKU P-881

engine

1983 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 8, 8th digit)

$799$599–$999 by mileage
1984 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1984 Buick Regal Somerset

SKU P-882

engine

1984 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1984 Buick Regal Somerset (1984 Down) Engine - 6-252 (4.1L, VIN 4, 8th digit)

1984 Buick Regal Somerset

SKU P-883

engine

1984 Buick Regal Somerset (1984 Down) Engine - 6-252 (4.1L, VIN 4, 8th digit)

$799$599–$999 by mileage
1984 Buick Regal Somerset (1984 Down) Engine - 6-260 (4.3L, diesel, VIN V, 8th digit)

1984 Buick Regal Somerset

SKU P-884

engine

1984 Buick Regal Somerset (1984 Down) Engine - 6-260 (4.3L, diesel, VIN V, 8th digit)

$799$599–$999 by mileage
1984 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 9, 8th digit)

1984 Buick Regal Somerset

SKU P-885

engine

1984 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 9, 8th digit)

$799$599–$999 by mileage
1984 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

1984 Buick Regal Somerset

SKU P-886

engine

1984 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

$799$599–$999 by mileage
1985 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1985 Buick Regal Somerset

SKU P-887

engine

1985 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1985 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 9, 8th digit)

1985 Buick Regal Somerset

SKU P-888

engine

1985 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 9, 8th digit)

$799$599–$999 by mileage
1985 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

1985 Buick Regal Somerset

SKU P-889

engine

1985 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

$799$599–$999 by mileage
1985 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit)

1985 Buick Regal Somerset

SKU P-890

engine

1985 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit)

$799$599–$999 by mileage
1986 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

1986 Buick Regal Somerset

SKU P-891

engine

1986 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

$799$599–$999 by mileage
1986 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1986 Buick Regal Somerset

SKU P-892

engine

1986 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1986 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 7, 8th digit)

1986 Buick Regal Somerset

SKU P-893

engine

1986 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 7, 8th digit)

$799$599–$999 by mileage
1986 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), cast iron exhaust ...

1986 Buick Regal Somerset

SKU P-894

engine

1986 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), cast iron exhaust ...

$799$599–$999 by mileage
1986 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), stainless steel ex...

1986 Buick Regal Somerset

SKU P-895

engine

1986 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), stainless steel ex...

$799$599–$999 by mileage
1987 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

1987 Buick Regal Somerset

SKU P-896

engine

1987 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), w/o turbo; (VIN A, 8th digit)

$799$599–$999 by mileage
1987 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 7, 8th digit)

1987 Buick Regal Somerset

SKU P-897

engine

1987 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), turbo (VIN 7, 8th digit)

$799$599–$999 by mileage
1987 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), cast iron exhaust ...

1987 Buick Regal Somerset

SKU P-898

engine

1987 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), cast iron exhaust ...

$799$599–$999 by mileage
1987 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), stainless steel ex...

1987 Buick Regal Somerset

SKU P-899

engine

1987 Buick Regal Somerset (1984 Down) Engine - 8-307 (5.0L, VIN Y, 8th digit), stainless steel ex...

$799$599–$999 by mileage
1987 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

1987 Buick Regal Somerset

SKU P-900

engine

1987 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 8th digit)

$799$599–$999 by mileage
1988 Buick Regal Somerset (1984 Down) Engine - (6-173, 2.8L, VIN W, 8th digit)

1988 Buick Regal Somerset

SKU P-901

engine

1988 Buick Regal Somerset (1984 Down) Engine - (6-173, 2.8L, VIN W, 8th digit)

$799$599–$999 by mileage
1989 Buick Regal Somerset (1984 Down) Engine - 6-173 (2.8L, VIN W, 8th digit)

1989 Buick Regal Somerset

SKU P-902

engine

1989 Buick Regal Somerset (1984 Down) Engine - 6-173 (2.8L, VIN W, 8th digit)

$799$599–$999 by mileage
1989 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

1989 Buick Regal Somerset

SKU P-903

engine

1989 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

$799$599–$999 by mileage
1990 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

1990 Buick Regal Somerset

SKU P-904

engine

1990 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

$799$599–$999 by mileage
1990 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

1990 Buick Regal Somerset

SKU P-905

engine

1990 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

$799$599–$999 by mileage
1991 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

1991 Buick Regal Somerset

SKU P-906

engine

1991 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

$799$599–$999 by mileage
1991 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

1991 Buick Regal Somerset

SKU P-907

engine

1991 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

$799$599–$999 by mileage
1992 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

1992 Buick Regal Somerset

SKU P-908

engine

1992 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

$799$599–$999 by mileage
1992 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

1992 Buick Regal Somerset

SKU P-909

engine

1992 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit)

$799$599–$999 by mileage
1993 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit), camshaft sensor

1993 Buick Regal Somerset

SKU P-910

engine

1993 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit), camshaft sensor

$799$599–$999 by mileage
1993 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit), w/o camshaft senso...

1993 Buick Regal Somerset

SKU P-911

engine

1993 Buick Regal Somerset (1984 Down) Engine - 6-191 (3.1L, VIN T, 8th digit), w/o camshaft senso...

$799$599–$999 by mileage
1993 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

1993 Buick Regal Somerset

SKU P-912

engine

1993 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L, VIN L, 8th digit)

$799$599–$999 by mileage

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