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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Verified Inventory

Every part is inspected and verified for authenticity and quality standards

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Total Inventory

2,794

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

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

Warranty

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2,794 parts — page 51 of 59

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1997 Buick Regal Somerset

SKU P-2401

transmission

1997 Buick Regal Somerset (1984 Down) Transmission - AT, (6-231, 3.8L), w/o supercharged option

$799$599–$999 by mileage

1998 Buick Regal Somerset

SKU P-2402

transmission

1998 Buick Regal Somerset (1984 Down) Transmission - AT, (6-231, 3.8L), supercharged option

$799$599–$999 by mileage

1998 Buick Regal Somerset

SKU P-2403

transmission

1998 Buick Regal Somerset (1984 Down) Transmission - AT, (6-231, 3.8L), w/o supercharged option

$799$599–$999 by mileage

1999 Buick Regal Somerset

SKU P-2404

transmission

1999 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option

$799$599–$999 by mileage

1999 Buick Regal Somerset

SKU P-2405

transmission

1999 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option

$799$599–$999 by mileage

2000 Buick Regal Somerset

SKU P-2406

transmission

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.1L

$799$599–$999 by mileage

2000 Buick Regal Somerset

SKU P-2407

transmission

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option, ID XAB

$799$599–$999 by mileage

2000 Buick Regal Somerset

SKU P-2408

transmission

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option, ID XBB

$799$599–$999 by mileage

2000 Buick Regal Somerset

SKU P-2409

transmission

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID APB

$799$599–$999 by mileage

2000 Buick Regal Somerset

SKU P-2410

transmission

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID ARB

$799$599–$999 by mileage

2001 Buick Regal Somerset

SKU P-2411

transmission

2001 Buick Regal Somerset (1984 Down) Transmission - AT, 3.1L

$799$599–$999 by mileage

2001 Buick Regal Somerset

SKU P-2412

transmission

2001 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option

$799$599–$999 by mileage

2001 Buick Regal Somerset

SKU P-2413

transmission

2001 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option

$799$599–$999 by mileage

2002 Buick Regal Somerset

SKU P-2414

transmission

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.1L

$799$599–$999 by mileage

2002 Buick Regal Somerset

SKU P-2415

transmission

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option

$799$599–$999 by mileage

2002 Buick Regal Somerset

SKU P-2416

transmission

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID APB

$799$599–$999 by mileage

2002 Buick Regal Somerset

SKU P-2417

transmission

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID DHB

$799$599–$999 by mileage

2002 Buick Regal Somerset

SKU P-2418

transmission

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID LBB

$799$599–$999 by mileage

2003 Buick Regal Somerset

SKU P-2419

transmission

2003 Buick Regal Somerset (1984 Down) Transmission - AT, supercharged option

$799$599–$999 by mileage

2003 Buick Regal Somerset

SKU P-2420

transmission

2003 Buick Regal Somerset (1984 Down) Transmission - AT, w/o supercharged option

$799$599–$999 by mileage

2004 Buick Regal Somerset

SKU P-2421

transmission

2004 Buick Regal Somerset (1984 Down) Transmission - AT, supercharged option

$799$599–$999 by mileage

2004 Buick Regal Somerset

SKU P-2422

transmission

2004 Buick Regal Somerset (1984 Down) Transmission - AT, w/o supercharged option

$799$599–$999 by mileage

2011 Buick Regal Somerset

SKU P-2423

transmission

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MDK

$799$599–$999 by mileage

2011 Buick Regal Somerset

SKU P-2424

transmission

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 0MFW

$799$599–$999 by mileage

2011 Buick Regal Somerset

SKU P-2425

transmission

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 0MJW

$799$599–$999 by mileage

2011 Buick Regal Somerset

SKU P-2426

transmission

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 1ABW

$799$599–$999 by mileage

2011 Buick Regal Somerset

SKU P-2427

transmission

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 1ERW

$799$599–$999 by mileage

2011 Buick Regal Somerset

SKU P-2428

transmission

2011 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2429

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2430

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MDK

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2431

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH8, ID 2JHW

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2432

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH8, ID 2KCW

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2433

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHH, ID 1BAW

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2434

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHH, ID 2JJW

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2435

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHK, ID 1FRC

$799$599–$999 by mileage

2012 Buick Regal Somerset

SKU P-2436

transmission

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHK, ID 2JGR

$799$599–$999 by mileage

2013 Buick Regal Somerset

SKU P-2437

transmission

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, opt MDK

$799$599–$999 by mileage

2013 Buick Regal Somerset

SKU P-2438

transmission

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, opt MHK

$799$599–$999 by mileage

2013 Buick Regal Somerset

SKU P-2439

transmission

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MH8

$799$599–$999 by mileage

2013 Buick Regal Somerset

SKU P-2440

transmission

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MHH

$799$599–$999 by mileage

2013 Buick Regal Somerset

SKU P-2441

transmission

2013 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

$799$599–$999 by mileage

2014 Buick Regal Somerset

SKU P-2442

transmission

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MHH

$799$599–$999 by mileage

2014 Buick Regal Somerset

SKU P-2443

transmission

2014 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

$799$599–$999 by mileage

2014 Buick Regal Somerset

SKU P-2444

transmission

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MH8

$799$599–$999 by mileage

2014 Buick Regal Somerset

SKU P-2445

transmission

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, AWD (opt M7U)

$799$599–$999 by mileage

2014 Buick Regal Somerset

SKU P-2446

transmission

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, FWD (opt M7W)

$799$599–$999 by mileage

2015 Buick Regal Somerset

SKU P-2447

transmission

2015 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

$799$599–$999 by mileage

2015 Buick Regal Somerset

SKU P-2448

transmission

2015 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MH8

$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

1997 Buick Regal Somerset (1984 Down) Transmission - AT, (6-231, 3.8L), w/o supercharged option

1998 Buick Regal Somerset (1984 Down) Transmission - AT, (6-231, 3.8L), supercharged option

1998 Buick Regal Somerset (1984 Down) Transmission - AT, (6-231, 3.8L), w/o supercharged option

1999 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option

1999 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.1L

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option, ID XAB

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option, ID XBB

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID APB

2000 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID ARB

2001 Buick Regal Somerset (1984 Down) Transmission - AT, 3.1L

2001 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option

2001 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.1L

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, supercharged option

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID APB

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID DHB

2002 Buick Regal Somerset (1984 Down) Transmission - AT, 3.8L, w/o supercharged option; ID LBB

2003 Buick Regal Somerset (1984 Down) Transmission - AT, supercharged option

2003 Buick Regal Somerset (1984 Down) Transmission - AT, w/o supercharged option

2004 Buick Regal Somerset (1984 Down) Transmission - AT, supercharged option

2004 Buick Regal Somerset (1984 Down) Transmission - AT, w/o supercharged option

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MDK

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 0MFW

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 0MJW

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 1ABW

2011 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH7, ID 1ERW

2011 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

2012 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MDK

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH8, ID 2JHW

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MH8, ID 2KCW

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHH, ID 1BAW

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHH, ID 2JJW

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHK, ID 1FRC

2012 Buick Regal Somerset (1984 Down) Transmission - AT, (6 Speed), opt MHK, ID 2JGR

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, opt MDK

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, opt MHK

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MH8

2013 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MHH

2013 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MHH

2014 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MH8

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, AWD (opt M7U)

2014 Buick Regal Somerset (1984 Down) Transmission - AT, 2.0L, FWD (opt M7W)

2015 Buick Regal Somerset (1984 Down) Transmission - MT, (6 speed, opt MR6)

2015 Buick Regal Somerset (1984 Down) Transmission - AT, 2.4L, opt MH8

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