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Welcome to Source One Auto Parts!

Welcome to Source One Auto Parts!

General Motors

Shop our complete catalog of genuine General Motors OEM parts. Our GM inventory covers Chevrolet, Cadillac, Buick, GMC, and Saturn vehicles — airbags, control modules, HVAC components, body parts, drivetrain components, and more, all sourced from GM factory surplus.

General Motors vehicles are built with a wide range of platform-specific components. Our factory-original GM parts are the correct replacement for your specific vehicle — same connector, same calibration, same mechanical specification as the part installed at the factory.

Browse by category or search by GM part number to find exactly what you need. Contact us at 269-343-3323 for part identification and fitment assistance.

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New OEM GM High Mount Stop Lamp With Cover Gray GA6 2014-19 CTS Sedan 23339467-1
$120.95 - $120.95
$120.95
$120.95 - $120.95
$120.95

New OEM GM High Mount Stop Lamp With Cover Gray GA6 2014-19 CTS Sedan 23339467

in stock

High Mount Stop Lamp With Cover, Painted You Drive Me Grazy Metallic (GA6, WA380A) Description: High Mount Stop Lamp With Cover, Painted You...

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SKU: 2021204

$120.95 - $120.95
$120.95
$120.95 - $120.95
$120.95
Driver Side Wiper Arm With 84613732 22 IN Blade 2013-19 ATS 2020-22 CT4 22905711-1
$44.36 - $44.36
$44.36
$44.36 - $44.36
$44.36

Driver Side Wiper Arm With 84613732 22 IN Blade 2013-19 ATS 2020-22 CT4 22905711

in stock

Driver's Side Windshield Wiper Arm, With 22" Blade Description: Driver's Side Windshield Wiper Arm, With 22" Blade Part Number: 84613732, ...

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SKU: 2021203

$44.36 - $44.36
$44.36
$44.36 - $44.36
$44.36
Windshield Washer Fluid Container With 13593730 Pump 14-19 Cadillac CTS 23231224-1
$121.72 - $121.72
$121.72
$121.72 - $121.72
$121.72

Windshield Washer Fluid Container With 13593730 Pump 14-19 Cadillac CTS 23231224

in stock

Windshield Washer Fluid Container Assembly, Includes One (1) Pump (Without Headlamp Washer Option) Description: Windshield Washer Fluid Cont...

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SKU: 2021200

$121.72 - $121.72
$121.72
$121.72 - $121.72
$121.72
Upper Right Side Rear Door Opening Reveal Molding 2015-19 ATS Coupe 23213862-1
$138.71 - $138.71
$138.71
$138.71 - $138.71
$138.71

Upper Right Side Rear Door Opening Reveal Molding 2015-19 ATS Coupe 23213862

Only 5 left!

Upper Right (Passenger) Side Rear Door Opening/Quarter Panel Reveal Molding, Fits 2015-2019 Cadillac ATS Coupe Description: Upper Right (Pas...

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SKU: 2021202

$138.71 - $138.71
$138.71
$138.71 - $138.71
$138.71
New OEM GM Instrument Panel Wiring Harness Ground Bolt 10 Pack 11609268-1
$19.94 - $19.94
$19.94
$19.94 - $19.94
$19.94

New OEM GM Instrument Panel Wiring Harness Ground Bolt 10 Pack 11609268

in stock

Instrument Panel Wiring Harness Ground Bolt (10 Pack) Description: Instrument Panel Wiring Harness Ground Bolt (10 Pack) Part Number: 1160...

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SKU: 2021144

$19.94 - $19.94
$19.94
$19.94 - $19.94
$19.94
New OEM GM Cowl Air Inlet Grille Panel 2013-19 Cadillac ATS 23332839-1
$133.16 - $133.16
$133.16
$133.16 - $133.16
$133.16

New OEM GM Cowl Air Inlet Grille Panel 2013-19 Cadillac ATS 23332839

in stock

Cowl Grille/Air Inlet Grille Panel Description: Cowl Grille/Air Inlet Grille Panel Part Number: 23332839 Condition: New OEM, Generic Pac...

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SKU: 2021198

$133.16 - $133.16
$133.16
$133.16 - $133.16
$133.16
Air Cleaner Outlet Front Duct 2017-19 Cadillac ATS-V 3.6L Twin Turbo 23361173-1
$138.71 - $138.71
$138.71
$138.71 - $138.71
$138.71

Air Cleaner Outlet Front Duct 2017-19 Cadillac ATS-V 3.6L Twin Turbo 23361173

in stock

Air Cleaner Outlet Front Duct, Fits 2017-2019 Cadillac ATS-V 3.6L Twin Turbo Description: Air Cleaner Outlet Front Duct, Fits 2017-2019 Cadi...

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SKU: 2021197

$138.71 - $138.71
$138.71
$138.71 - $138.71
$138.71
Trans Fluid Cooler Inlet & Outlet Pipe 2016-19 Cadillac CTS Vsport 23490200-1
$105.29 - $105.29
$105.29
$105.29 - $105.29
$105.29

Trans Fluid Cooler Inlet & Outlet Pipe 2016-19 Cadillac CTS Vsport 23490200

in stock

Transmission Fluid Cooler Inlet & Outlet Pipe, Fits 2016-2019 Cadillac CTS, 3.6L Vsport Description: Transmission Fluid Cooler Inlet &am...

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SKU: 2021072

$105.29 - $105.29
$105.29
$105.29 - $105.29
$105.29
Trans Fluid Cooler Inlet & Outlet Pipe 2016-19 CTS 3.6L N/A With AWD 23441346-1
$127.49 - $127.49
$127.49
$127.49 - $127.49
$127.49

Trans Fluid Cooler Inlet & Outlet Pipe 2016-19 CTS 3.6L N/A With AWD 23441346

in stock

Transmission Fluid Cooler Inlet & Outlet Pipe, Fits 2016-2019 Cadillac CTS, 3.6L (Except Vsport), With M5N Transmission, With All-Wheel Driv...

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SKU: 2021071

$127.49 - $127.49
$127.49
$127.49 - $127.49
$127.49
Trans Fluid Cooler Inlet & Outlet Pipe 2016-19 ATS CTS 3.6L With RWD 23390134-1
$83.09 - $83.09
$83.09
$83.09 - $83.09
$83.09

Trans Fluid Cooler Inlet & Outlet Pipe 2016-19 ATS CTS 3.6L With RWD 23390134

in stock

Transmission Fluid Cooler Inlet & Outlet Pipe, Fits 2016-2019 Cadillac ATS and CTS With 3.6L Engine (Except Vsport), With M5N Transmission, ...

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SKU: 2021070

$83.09 - $83.09
$83.09
$83.09 - $83.09
$83.09
Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 2 AWD 23151062-1
$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75

Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 2 AWD 23151062

in stock

Transmission Fluid Cooler Inlet & Outlet Pipe Description: Transmission Fluid Cooler Inlet & Outlet Pipe Part Number: 23151062 C...

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SKU: 2021069

$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75
Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 2 RWD 23151061-1
$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75

Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 2 RWD 23151061

in stock

Transmission Fluid Cooler Inlet & Outlet Pipe Description: Transmission Fluid Cooler Inlet & Outlet Pipe Part Number: 23151061 C...

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SKU: 2021068

$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75
Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 3.6 RWD 23104596-1
$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75

Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 3.6 RWD 23104596

in stock

Transmission Fluid Cooler Inlet & Outlet Pipe Description: Transmission Fluid Cooler Inlet & Outlet Pipe Part Number: 23104596 C...

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SKU: 2021066

$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75
Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 3.6 AWD 23104597-1
$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75

Transmission Fluid Cooler Inlet Outlet Pipe 16-19 CTS 16-18 ATS 3.6 AWD 23104597

Only 3 left!

Transmission Fluid Cooler Inlet & Outlet Pipe Description: Transmission Fluid Cooler Inlet & Outlet Pipe Part Number: 23104597 C...

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SKU: 2021067

$96.75 - $96.75
$96.75
$96.75 - $96.75
$96.75
New OEM GM GPS/Navigation Antenna Coax Cable 2017-19 Cadillac CTS-V 22958810-1
$25.49 - $25.49
$25.49
$25.49 - $25.49
$25.49

New OEM GM GPS/Navigation Antenna Coax Cable 2017-19 Cadillac CTS-V 22958810

in stock

GPS/Navigation Antenna Coax Cable Description: GPS/Navigation Antenna Coax Cable Part Number: 22958810 Condition: New OEM, Manufacturer ...

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SKU: 2020980

$25.49 - $25.49
$25.49
$25.49 - $25.49
$25.49
Turbo Charger Intercooler Hose Tube Return Line Seal/Gasket Set of 2 12662185-1
$10.54 - $10.54
$10.54
$10.54 - $10.54
$10.54

Turbo Charger Intercooler Hose Tube Return Line Seal/Gasket Set of 2 12662185

in stock

Turbo Charger Intercooler Hose Tube Return Line Seal/Gasket (Set of 2) Description: Turbo Charger Intercooler Hose Tube Return Line Seal/Gas...

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SKU: 2020982

$10.54 - $10.54
$10.54
$10.54 - $10.54
$10.54
Rocker Panel Molding Pair Pull Me Over Red 2016-19 CTS-V 23441973 23441974-1
$708.17 - $708.17
$708.17
$708.17 - $708.17
$708.17

Rocker Panel Molding Pair Pull Me Over Red 2016-19 CTS-V 23441973 23441974

Only 1 left!

Rocker Panel Molding Pair (Left and Right Hand Side), Painted Pull Me Over Red (130X, G7C, WA130X) Description: Rocker Panel Molding Pair (L...

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SKU: 2020975

$708.17 - $708.17
$708.17
$708.17 - $708.17
$708.17
Rocker Panel Molding Pair Satin Steel Gray 2014-18 CTS Sedan 23304192 23304193-1
$708.17 - $708.17
$708.17
$708.17 - $708.17
$708.17

Rocker Panel Molding Pair Satin Steel Gray 2014-18 CTS Sedan 23304192 23304193

Only 5 left!

Rocker Panel Molding Pair (Left and Right Hand Side), Painted Satin Steel Gray Metallic 3 (464C, G9K, WA464C) Description: Rocker Panel Mold...

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SKU: 2020973

$708.17 - $708.17
$708.17
$708.17 - $708.17
$708.17
Rocker Panel Molding Pair Abalone White 2014-18 CTS Sedan 23304192 23304193-1
$488.39 - $488.39
$488.39
$488.39 - $488.39
$488.39

Rocker Panel Molding Pair Abalone White 2014-18 CTS Sedan 23304192 23304193

Only 1 left!

Rocker Panel Molding Pair (Left and Right Hand Side), Painted Abalone White Pearl (140X, G1W, WA140X) Description: Rocker Panel Molding Pair...

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SKU: 2020962

$488.39 - $488.39
$488.39
$488.39 - $488.39
$488.39
Rocker Panel Molding Pair Caught Red Handed 2014-18 CTS Sedan 23304192 23304193-1
$488.39 - $488.39
$488.39
$488.39 - $488.39
$488.39

Rocker Panel Molding Pair Caught Red Handed 2014-18 CTS Sedan 23304192 23304193

Only 2 left!

Rocker Panel Molding Pair (Left and Right Hand Side), Painted Caught Red Handed Metallic (132X, G7E, WA132X) Description: Rocker Panel Moldi...

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SKU: 2020961

$488.39 - $488.39
$488.39
$488.39 - $488.39
$488.39
Window Belt Reveal Molding 4 Piece Kit Gloss 2018-19 Cadillac CTS Black-1
$443.96 - $443.96
$443.96
$443.96 - $443.96
$443.96

Window Belt Reveal Molding 4 Piece Kit Gloss 2018-19 Cadillac CTS Black

in stock

Window Belt Molding Kit, All Four Doors, Gloss Black in Color, Part of 2018-2019 Cadillac CTS Morello Red Package (Option A7C) Description: ...

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SKU: 2020953

$443.96 - $443.96
$443.96
$443.96 - $443.96
$443.96
New OEM GM Rocker Panel Molding Pair Black 2014-18 CTS Sedan 23304192 23304193-1
$488.39 - $488.39
$488.39
$488.39 - $488.39
$488.39

New OEM GM Rocker Panel Molding Pair Black 2014-18 CTS Sedan 23304192 23304193

Only 1 left!

Rocker Panel Molding Pair (Left and Right Hand Side), Painted Black 41, (8555, GBA, WA8555) Description: Rocker Panel Molding Pair (Left and...

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SKU: 2020960

$488.39 - $488.39
$488.39
$488.39 - $488.39
$488.39
New OEM GM Front Floor Flood Lamp Upper Ride Side 2014-19 Cadillac CTS 23206333-1
$54.40 - $54.40
$54.40
$54.40 - $54.40
$54.40

New OEM GM Front Floor Flood Lamp Upper Ride Side 2014-19 Cadillac CTS 23206333

in stock

Front Floor Flood Lamp, Upper Right Hand (Passenger's Side) Description: Front Floor Flood Lamp, Upper Right Hand (Passenger's Side) Part ...

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SKU: 2020939

$54.40 - $54.40
$54.40
$54.40 - $54.40
$54.40
New OEM GM Front Floor Flood Lamp Block Right 14-19 Cadillac CTS Sedan 22807727-1
$42.30 - $42.30
$42.30
$42.30 - $42.30
$42.30

New OEM GM Front Floor Flood Lamp Block Right 14-19 Cadillac CTS Sedan 22807727

in stock

Front Floor Flood Lamp Block, Right Hand (Passenger's Side) Description: Front Floor Flood Lamp Block, Right Hand (Passenger's Side) Part ...

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SKU: 2020938

$42.30 - $42.30
$42.30
$42.30 - $42.30
$42.30

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