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

Find Your Part

(888) 818-5001

Year

Make

Model

Part Type

Call(888) 818-5001 Get Quote

Brand Heritage

Buick has built a reputation for engineering excellence and automotive innovation.

Quality Assurance

Our Buick parts inventory features genuine OEM components tested for quality and durability.

2,794+

Parts Verified

90 Day

Warranty

24/7

Support

USA

Shipping

Buick Parts Advantage

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

Fast Sourcing

Access to the largest network of verified suppliers with quick turnaround times

Quality Assured

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

Best Pricing

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

24-Hour Support

Get responses within 24 hours from our dedicated support team

Industry Leading

Trust the largest, most reliable used auto parts platform in America

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

All Buick parts certified and guaranteed. Complete peace of mind on every purchase.

748 parts for Buick Regal Somerset — page 14 of 16

Filter by Material

1982 Buick Regal Somerset

SKU P-2341

transmission

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

$799$599–$999 by mileage

1982 Buick Regal Somerset

SKU P-2342

transmission

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

$799$599–$999 by mileage

1982 Buick Regal Somerset

SKU P-2343

transmission

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

$799$599–$999 by mileage

1982 Buick Regal Somerset

SKU P-2344

transmission

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2345

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, 6-231 (3.8L)

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2346

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, w/o 6-231

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2347

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, multi-fit case, 1 wire lock-up plug har...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2348

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, multi-fit case, 2 wire lock-up plug har...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2349

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, multi-fit case, 3 wire lock-up plug har...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2350

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2351

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2352

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2353

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2354

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2355

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2356

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2357

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2358

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, diesel

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2359

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, multi-fit case

$799$599–$999 by mileage

1983 Buick Regal Somerset

SKU P-2360

transmission

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, w/o overdrive

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2361

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, 6-231 (3.8L)

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2362

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, w/o 6-231

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2363

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, diesel

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2364

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, multi-fit case

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2365

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, w/o overdrive

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2366

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

$799$599–$999 by mileage

1984 Buick Regal Somerset

SKU P-2367

transmission

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

$799$599–$999 by mileage

1985 Buick Regal Somerset

SKU P-2368

transmission

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, diesel

$799$599–$999 by mileage

1985 Buick Regal Somerset

SKU P-2369

transmission

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, gasoline, multi-fit case

$799$599–$999 by mileage

1985 Buick Regal Somerset

SKU P-2370

transmission

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, gasoline, w/o multi-fit ca...

$799$599–$999 by mileage

1985 Buick Regal Somerset

SKU P-2371

transmission

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, gasoline, w/o multi-fit ca...

$799$599–$999 by mileage

1985 Buick Regal Somerset

SKU P-2372

transmission

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; Chev built engine

$799$599–$999 by mileage

1985 Buick Regal Somerset

SKU P-2373

transmission

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; w/o Chev built engine

$799$599–$999 by mileage

1986 Buick Regal Somerset

SKU P-2374

transmission

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; Chev built engine

$799$599–$999 by mileage

1986 Buick Regal Somerset

SKU P-2375

transmission

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; w/o Chev built engine

$799$599–$999 by mileage

1986 Buick Regal Somerset

SKU P-2376

transmission

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, multi-fit case

$799$599–$999 by mileage

1986 Buick Regal Somerset

SKU P-2377

transmission

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; Chev b...

$799$599–$999 by mileage

1986 Buick Regal Somerset

SKU P-2378

transmission

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; w/o Ch...

$799$599–$999 by mileage

1987 Buick Regal Somerset

SKU P-2379

transmission

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; Chev built engine

$799$599–$999 by mileage

1987 Buick Regal Somerset

SKU P-2380

transmission

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; w/o Chev built engine

$799$599–$999 by mileage

1987 Buick Regal Somerset

SKU P-2381

transmission

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, multi-fit case

$799$599–$999 by mileage

1987 Buick Regal Somerset

SKU P-2382

transmission

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; Chev b...

$799$599–$999 by mileage

1987 Buick Regal Somerset

SKU P-2383

transmission

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; w/o Ch...

$799$599–$999 by mileage

1988 Buick Regal Somerset

SKU P-2384

transmission

1988 Buick Regal Somerset (1984 Down) Transmission - AT

$799$599–$999 by mileage

1989 Buick Regal Somerset

SKU P-2385

transmission

1989 Buick Regal Somerset (1984 Down) Transmission - AT, 6-173 (2.8L)

$799$599–$999 by mileage

1989 Buick Regal Somerset

SKU P-2386

transmission

1989 Buick Regal Somerset (1984 Down) Transmission - AT, 6-191 (3.1L)

$799$599–$999 by mileage

1990 Buick Regal Somerset

SKU P-2387

transmission

1990 Buick Regal Somerset (1984 Down) Transmission - AT, 6-191 (3.1L)

$799$599–$999 by mileage

1990 Buick Regal Somerset

SKU P-2388

transmission

1990 Buick Regal Somerset (1984 Down) Transmission - AT, 6-231 (3.8L)

$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

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

1982 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, 6-231 (3.8L)

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, w/o 6-231

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, multi-fit case, 1 wire lock-up plug har...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, multi-fit case, 2 wire lock-up plug har...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, multi-fit case, 3 wire lock-up plug har...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; Chev built engine, ...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH350, w/o multi-fit case; w/o Chev built engi...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, diesel

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, multi-fit case

1983 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, w/o overdrive

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, 6-231 (3.8L)

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH250, w/o 6-231

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, diesel

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, multi-fit case

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, w/o overdrive

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

1984 Buick Regal Somerset (1984 Down) Transmission - AT, TH200, overdrive, gasoline, w/o multi-fit case...

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, diesel

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, gasoline, multi-fit case

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, gasoline, w/o multi-fit ca...

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, gasoline, w/o multi-fit ca...

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; Chev built engine

1985 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; w/o Chev built engine

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; Chev built engine

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; w/o Chev built engine

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, multi-fit case

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; Chev b...

1986 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; w/o Ch...

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; Chev built engine

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), w/o overdrive; w/o Chev built engine

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, multi-fit case

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; Chev b...

1987 Buick Regal Somerset (1984 Down) Transmission - AT, (TH200), overdrive, w/o multi-fit case; w/o Ch...

1988 Buick Regal Somerset (1984 Down) Transmission - AT

1989 Buick Regal Somerset (1984 Down) Transmission - AT, 6-173 (2.8L)

1989 Buick Regal Somerset (1984 Down) Transmission - AT, 6-191 (3.1L)

1990 Buick Regal Somerset (1984 Down) Transmission - AT, 6-191 (3.1L)

1990 Buick Regal Somerset (1984 Down) Transmission - AT, 6-231 (3.8L)

Shop other brands