Buick · Premium Parts

Buick

Premium OEM Parts Inventory

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

Compatible Models

90 Days

Complete Warranty

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Why Choose Buick From AUAPW

Access 2,794 verified Buick parts across 24 models with quality guarantees and expert support

Verified Inventory

Every part is inspected and verified for authenticity and quality standards

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All parts come with 30-180 day warranty and guaranteed quality certification

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Save 40-70% compared to new OEM parts with transparent, no-hidden-fee quotes

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Total Inventory

2,794

Quality Buick parts in stock, from common components to rare discontinued items.

Model Coverage

Compatible Buick models across multiple years, ensuring you find the perfect fit.

Warranty

30-180 Days

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2,794 parts — page 18 of 59

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2018 Buick Regal Engine

SKU P-817

engine

2018 Buick Regal Engine - 3.6L (VIN S, 8th digit, opt LGX)

$2,126$1,772–$2,304 by mileage

2019 Buick Regal Engine

SKU P-818

engine

2019 Buick Regal Engine - 2.0L (VIN X, 8th digit, opt LTG), AWD

$2,664$2,220–$2,886 by mileage

2019 Buick Regal Engine

SKU P-819

engine

2019 Buick Regal Engine - 2.0L (VIN X, 8th digit, opt LTG), FWD

$2,496$2,080–$2,704 by mileage

2019 Buick Regal Engine

SKU P-820

engine

2019 Buick Regal Engine - 3.6L (VIN S, 8th digit, opt LGX)

$2,126$1,772–$2,304 by mileage

1973 Buick Regal Somerset

SKU P-821

engine

1973 Buick Regal Somerset (1984 Down) Engine - 8-455

$799$599–$999 by mileage

1973 Buick Regal Somerset

SKU P-822

engine

1973 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

$799$599–$999 by mileage

1973 Buick Regal Somerset

SKU P-823

engine

1973 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

$799$599–$999 by mileage

1973 Buick Regal Somerset

SKU P-824

engine

1973 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

$799$599–$999 by mileage

1974 Buick Regal Somerset

SKU P-825

engine

1974 Buick Regal Somerset (1984 Down) Engine - 8-455

$799$599–$999 by mileage

1974 Buick Regal Somerset

SKU P-826

engine

1974 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

$799$599–$999 by mileage

1974 Buick Regal Somerset

SKU P-827

engine

1974 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

$799$599–$999 by mileage

1974 Buick Regal Somerset

SKU P-828

engine

1974 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

$799$599–$999 by mileage

1975 Buick Regal Somerset

SKU P-829

engine

1975 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

$799$599–$999 by mileage

1975 Buick Regal Somerset

SKU P-830

engine

1975 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

$799$599–$999 by mileage

1975 Buick Regal Somerset

SKU P-831

engine

1975 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

$799$599–$999 by mileage

1975 Buick Regal Somerset

SKU P-832

engine

1975 Buick Regal Somerset (1984 Down) Engine - 6-231 (VIN C, 5th digit)

$799$599–$999 by mileage

1976 Buick Regal Somerset

SKU P-833

engine

1976 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

$799$599–$999 by mileage

1976 Buick Regal Somerset

SKU P-834

engine

1976 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

$799$599–$999 by mileage

1976 Buick Regal Somerset

SKU P-835

engine

1976 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

$799$599–$999 by mileage

1976 Buick Regal Somerset

SKU P-836

engine

1976 Buick Regal Somerset (1984 Down) Engine - 6-231 (VIN C, 5th digit)

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-837

engine

1977 Buick Regal Somerset (1984 Down) Engine - 6-231, VIN A (5th digit, even firing)

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-838

engine

1977 Buick Regal Somerset (1984 Down) Engine - 6-231, VIN C (5th digit, uneven firing)

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-839

engine

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit, Buick, 2BC)

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-840

engine

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit, Buick, 4BC)

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-841

engine

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN L (5th digit, Chev)

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-842

engine

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN R (5th digit), AT

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-843

engine

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN R (5th digit), MT

$799$599–$999 by mileage

1977 Buick Regal Somerset

SKU P-844

engine

1977 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L)

$799$599–$999 by mileage

1978 Buick Regal Somerset

SKU P-845

engine

1978 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L)

$799$599–$999 by mileage

1978 Buick Regal Somerset

SKU P-846

engine

1978 Buick Regal Somerset (1984 Down) Engine - 6-196

$799$599–$999 by mileage

1978 Buick Regal Somerset

SKU P-847

engine

1978 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC, turbo, (VIN G, 5th digit)

$799$599–$999 by mileage

1978 Buick Regal Somerset

SKU P-848

engine

1978 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC, w/o Turbo; (VIN A, 5th digit)

$799$599–$999 by mileage

1978 Buick Regal Somerset

SKU P-849

engine

1978 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 5th digit)

$799$599–$999 by mileage

1979 Buick Regal Somerset

SKU P-850

engine

1979 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L)

$799$599–$999 by mileage

1979 Buick Regal Somerset

SKU P-851

engine

1979 Buick Regal Somerset (1984 Down) Engine - 6-196

$799$599–$999 by mileage

1979 Buick Regal Somerset

SKU P-852

engine

1979 Buick Regal Somerset (1984 Down) Engine - 8-301 (4.9L), VIN W (5th digit)

$799$599–$999 by mileage

1979 Buick Regal Somerset

SKU P-853

engine

1979 Buick Regal Somerset (1984 Down) Engine - 8-301 (4.9L), VIN Y (5th digit)

$799$599–$999 by mileage

1979 Buick Regal Somerset

SKU P-854

engine

1979 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 5th digit)

$799$599–$999 by mileage

1979 Buick Regal Somerset

SKU P-855

engine

1979 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 5th digit)

$799$599–$999 by mileage

1980 Buick Regal Somerset

SKU P-856

engine

1980 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 5th digit)

$799$599–$999 by mileage

1980 Buick Regal Somerset

SKU P-857

engine

1980 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 5th digit)

$799$599–$999 by mileage

1980 Buick Regal Somerset

SKU P-858

engine

1980 Buick Regal Somerset (1984 Down) Engine - 8-265 (4.3L, VIN S, 5th digit)

$799$599–$999 by mileage

1980 Buick Regal Somerset

SKU P-859

engine

1980 Buick Regal Somerset (1984 Down) Engine - 8-301 (4.9L, VIN W, 5th digit)

$799$599–$999 by mileage

1980 Buick Regal Somerset

SKU P-860

engine

1980 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 5th digit)

$799$599–$999 by mileage

1981 Buick Regal Somerset

SKU P-861

engine

1981 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit), California

$799$599–$999 by mileage

1981 Buick Regal Somerset

SKU P-862

engine

1981 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit), Federal

$799$599–$999 by mileage

1981 Buick Regal Somerset

SKU P-863

engine

1981 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 8th digit)

$799$599–$999 by mileage

1981 Buick Regal Somerset

SKU P-864

engine

1981 Buick Regal Somerset (1984 Down) Engine - 8-265 (4.3L, VIN S, 8th digit)

$799$599–$999 by mileage

Buick

Engines, Transmissions & Parts

Brand Heritage

Quality Assurance

Why Choose Buick From AUAPW

Verified Inventory

Fast Sourcing

Quality Assured

Best Pricing

24-Hour Support

Industry Leading

Total Inventory

Model Coverage

Warranty

Filter by model

Filter by Material

2018 Buick Regal Engine - 3.6L (VIN S, 8th digit, opt LGX)

2019 Buick Regal Engine - 2.0L (VIN X, 8th digit, opt LTG), AWD

2019 Buick Regal Engine - 2.0L (VIN X, 8th digit, opt LTG), FWD

2019 Buick Regal Engine - 3.6L (VIN S, 8th digit, opt LGX)

1973 Buick Regal Somerset (1984 Down) Engine - 8-455

1973 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

1973 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

1973 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

1974 Buick Regal Somerset (1984 Down) Engine - 8-455

1974 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

1974 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

1974 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

1975 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

1975 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

1975 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

1975 Buick Regal Somerset (1984 Down) Engine - 6-231 (VIN C, 5th digit)

1976 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit)

1976 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit)

1976 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN X (5th digit)

1976 Buick Regal Somerset (1984 Down) Engine - 6-231 (VIN C, 5th digit)

1977 Buick Regal Somerset (1984 Down) Engine - 6-231, VIN A (5th digit, even firing)

1977 Buick Regal Somerset (1984 Down) Engine - 6-231, VIN C (5th digit, uneven firing)

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN H (5th digit, Buick, 2BC)

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN J (5th digit, Buick, 4BC)

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN L (5th digit, Chev)

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN R (5th digit), AT

1977 Buick Regal Somerset (1984 Down) Engine - 8-350, VIN R (5th digit), MT

1977 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L)

1978 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L)

1978 Buick Regal Somerset (1984 Down) Engine - 6-196

1978 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC, turbo, (VIN G, 5th digit)

1978 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC, w/o Turbo; (VIN A, 5th digit)

1978 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 5th digit)

1979 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L)

1979 Buick Regal Somerset (1984 Down) Engine - 6-196

1979 Buick Regal Somerset (1984 Down) Engine - 8-301 (4.9L), VIN W (5th digit)

1979 Buick Regal Somerset (1984 Down) Engine - 8-301 (4.9L), VIN Y (5th digit)

1979 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 5th digit)

1979 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 5th digit)

1980 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 2BC (VIN A, 5th digit)

1980 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 5th digit)

1980 Buick Regal Somerset (1984 Down) Engine - 8-265 (4.3L, VIN S, 5th digit)

1980 Buick Regal Somerset (1984 Down) Engine - 8-301 (4.9L, VIN W, 5th digit)

1980 Buick Regal Somerset (1984 Down) Engine - 8-305 (5.0L, VIN H, 5th digit)

1981 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit), California

1981 Buick Regal Somerset (1984 Down) Engine - 8-350 (5.7L, diesel, VIN N, 8th digit), Federal

1981 Buick Regal Somerset (1984 Down) Engine - 6-231 (3.8L), 4BC (turbo, VIN 3, 8th digit)

1981 Buick Regal Somerset (1984 Down) Engine - 8-265 (4.3L, VIN S, 8th digit)

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