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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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Door Handle Cap Left or Right Rear Silver GAN 2015-18 Silverado Sierra 13593680-1
$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46

Door Handle Cap Left or Right Rear Silver GAN 2015-18 Silverado Sierra 13593680

in stock

Door Handle Cap, Fits Left or Right Rear, Painted Switchblade Silver Metallic 17 (GAN, WA636R) Description: Door Handle Cap, Fits Left or Ri...

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SKU: 2030331

$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46
Door Handle Cap Left or Right Rear Summit White 15-18 Silverado Sierra 13593680-1
$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46

Door Handle Cap Left or Right Rear Summit White 15-18 Silverado Sierra 13593680

in stock

Door Handle Cap, Fits Left or Right Rear, Painted Summit White (GAZ, WA8624) Description: Door Handle Cap, Fits Left or Right Rear, Painted ...

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SKU: 2030329

$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46
Door Handle Cap Left or Right Rear Sacre Blue 2015-18 Silverado Sierra 13593680-1
$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46

Door Handle Cap Left or Right Rear Sacre Blue 2015-18 Silverado Sierra 13593680

in stock

Door Handle Cap, Fits Left or Right Rear, Painted Sacr'E Bleu Metallic (G1K, WA409Y) Description: Door Handle Cap, Fits Left or Right Rear, ...

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SKU: 2030330

$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46
Door Handle Cap Left or Right Rear Abalone White 15-18 Silverado Sierra 13593680-1
$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46

Door Handle Cap Left or Right Rear Abalone White 15-18 Silverado Sierra 13593680

in stock

Door Handle Cap, Fits Left or Right Rear, Painted Abalone White Pearl (G1W, H2V, WA140X) Description: Door Handle Cap, Fits Left or Right Re...

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SKU: 2030328

$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46
Door Handle Cap Left or Right Rear Glory Red 2015-18 Silverado Sierra 13593680-1
$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46

Door Handle Cap Left or Right Rear Glory Red 2015-18 Silverado Sierra 13593680

in stock

Door Handle Cap, Fits Left or Right Rear, Painted Glory Red Metallic 2 (GPJ, WA434B) Description: Door Handle Cap, Fits Left or Right Rear, ...

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SKU: 2030327

$14.46 - $14.46
$14.46
$14.46 - $14.46
$14.46
Door Handle Cap LH or RH Rear Black Textured 2015-18 Silverado Sierra 23438322-1
$13.25 - $13.25
$13.25
$13.25 - $13.25
$13.25

Door Handle Cap LH or RH Rear Black Textured 2015-18 Silverado Sierra 23438322

in stock

Door Handle Cap, Fits Left or Right Rear, Black Textured (Anthracite) Description: Door Handle Cap, Fits Left or Right Rear, Black Textured ...

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SKU: 2030326

$13.25 - $13.25
$13.25
$13.25 - $13.25
$13.25
Gasoline Metallic GPA Rear Bumper Silverado Sierra 3500 Dually 84204619 15-19-1
$871.18 - $871.18
$871.18
$871.18 - $871.18
$871.18

Gasoline Metallic GPA Rear Bumper Silverado Sierra 3500 Dually 84204619 15-19

Only 2 left!

New OEM Complete Rear Bumper (23112252), Painted Gasoline Metallic/Dark Slate (GPA, WA457B) With Brackets, Step Pads, Corners Steps, Parking Aid...

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SKU: 2030314

$871.18 - $871.18
$871.18
$871.18 - $871.18
$871.18
Transmission Fluid Level Indicator 2017-20 Silverado Sierra Duramax 24285831-1
$16.61 - $16.61
$16.61
$16.61 - $16.61
$16.61

Transmission Fluid Level Indicator 2017-20 Silverado Sierra Duramax 24285831

in stock

Transmission Fluid Level Indicator Description: Transmission Fluid Level Indicator Part Number: 24285831 Condition: New OEM, Generic Pac...

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SKU: 2030294

$16.61 - $16.61
$16.61
$16.61 - $16.61
$16.61
Heater Core OEM GM 2014-18 Silverado Sierra 1500 2015-19 2500 3500 84418888-1
$60.45 - $60.45
$60.45
$60.45 - $60.45
$60.45

Heater Core OEM GM 2014-18 Silverado Sierra 1500 2015-19 2500 3500 84418888

in stock

Heater Core Description: Heater Core Part Number: 84418888, 15-63782, 84418889 Condition: New OEM, Generic Packaging, Removed From Facto...

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SKU: 2030290

$60.45 - $60.45
$60.45
$60.45 - $60.45
$60.45
Evaporator Core With Expansion Valve 2017-18 Silverado Sierra 84340800 84104355-1
$150.83 - $150.83
$150.83
$150.83 - $150.83
$150.83

Evaporator Core With Expansion Valve 2017-18 Silverado Sierra 84340800 84104355

in stock

AC Evaporator Core With Expansion Valve Description: AC Evaporator Core With Expansion Valve Part Number: 84340800, 84104355, 15-63894, 15...

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SKU: 2030289

$150.83 - $150.83
$150.83
$150.83 - $150.83
$150.83
Instrument Cluster Speedometer KPH L5P UHS 2018 Silverado Sierra 6.6L 84505082-1
$332.68 - $332.68
$332.68
$332.68 - $332.68
$332.68

Instrument Cluster Speedometer KPH L5P UHS 2018 Silverado Sierra 6.6L 84505082

in stock

Instrument Cluster/Speedometer, KPH/Metric Bias, Option UHS, Multi-Color Enhanced Graphic Description: Instrument Cluster/Speedometer, KPH/M...

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SKU: 2030288

$332.68 - $332.68
$332.68
$332.68 - $332.68
$332.68
Fuel/Water Separator Filter and Housing 2017-19 Silverado Sierra 6.6L 23149524-1
$54.40 - $54.40
$54.40
$54.40 - $54.40
$54.40

Fuel/Water Separator Filter and Housing 2017-19 Silverado Sierra 6.6L 23149524

in stock

Fuel/Water Separator Filter and Housing Description: Fuel/Water Separator Filter and Housing Part Number: 23149526, 23304096, 23149524, 23...

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SKU: 2030277

$54.40 - $54.40
$54.40
$54.40 - $54.40
$54.40
Trailer Rear Wiring Harness Receptacle 16-19 Silverado Sierra 2500 3500 25845395-1
$35.91 - $35.91
$35.91
$35.91 - $35.91
$35.91

Trailer Rear Wiring Harness Receptacle 16-19 Silverado Sierra 2500 3500 25845395

in stock

Trailer Rear Wiring Harness Receptacle Description: Trailer Rear Wiring Harness Receptacle Part Number: 84103267, 25845395 Condition: Ne...

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SKU: 2030274

$35.91 - $35.91
$35.91
$35.91 - $35.91
$35.91
Trailer Wiring Harness 7 Pin Terminal 15-19 Silverado Sierra 2500 3500 84154213
$72.21 - $72.21
$72.21
$72.21 - $72.21
$72.21

Trailer Wiring Harness 7 Pin Terminal 15-19 Silverado Sierra 2500 3500 84154213

in stock

Rear Trailer Wiring Harness, 7-Pin/Blade Terminal, Male & Female End Description: Rear Trailer Wiring Harness, 7-Pin/Blade Terminal, Male &...

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SKU: 2030273

$72.21 - $72.21
$72.21
$72.21 - $72.21
$72.21
OEM GM Radiator Surge Tank Inlet Hose 2017-19 Silverado Sierra L5P 6.6L 84249765-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

OEM GM Radiator Surge Tank Inlet Hose 2017-19 Silverado Sierra L5P 6.6L 84249765

in stock

Radiator Surge Tank Inlet Hose Description: Radiator Surge Tank Inlet Hose Part Number: 84249765, 84243584 Condition: New OEM, Generic P...

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SKU: 2030272

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
New OEM GM Smokers Package Kit Cupholder Type Ash Tray With Lighter 23188872-1
$36.25 - $36.25
$36.25
$36.25 - $36.25
$36.25

New OEM GM Smokers Package Kit Cupholder Type Ash Tray With Lighter 23188872

in stock

Smokers Package Kit, Cupholder Type, Includes Ash Tray and Lighter Description: Smokers Package Kit, Cupholder Type, Includes Ash Tray and L...

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SKU: 2030271

$36.25 - $36.25
$36.25
$36.25 - $36.25
$36.25
New OEM GM Rancho Rear Shock Absorber 2015-18 Silverado Sierra 2500 Z71 23315262-1
$55.49 - $55.49
$55.49
$55.49 - $55.49
$55.49

New OEM GM Rancho Rear Shock Absorber 2015-18 Silverado Sierra 2500 Z71 23315262

in stock

Rancho Rear Shock Absorber Description: Rancho Rear Shock Absorber Part Number: 23315262, 22980434, 560-980, OE22966 Condition: New OEM,...

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SKU: 2030267

$55.49 - $55.49
$55.49
$55.49 - $55.49
$55.49
New OEM Rancho Rear Shock Absorber 15-18 Silverado Sierra 2500 6.0L Z71 23315265-1
$55.49 - $55.49
$55.49
$55.49 - $55.49
$55.49

New OEM Rancho Rear Shock Absorber 15-19 Silverado Sierra 2500 6.0L Z71 23315265

in stock

Rancho Rear Shock Absorber Description: Rancho Rear Shock Absorber Part Number: 23315265, 22980437, 560-983, OE22963 Condition: New OEM,...

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SKU: 2030264

$55.49 - $55.49
$55.49
$55.49 - $55.49
$55.49
New OEM GM Rear Shock Absorber 2015-18 Silverado Sierra 3500 HD Dually 22990476-1
$49.38 - $49.38
$49.38
$49.38 - $49.38
$49.38

New OEM GM Rear Shock Absorber 2015-18 Silverado Sierra 3500 HD Dually 22990476

in stock

Rear Shock Absorber Description: Rear Shock Absorber Part Number: 22990476, 560-874, OE18817 Condition: New OEM, Generic Packaging Oth...

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SKU: 2030262

$49.38 - $49.38
$49.38
$49.38 - $49.38
$49.38
Transmission Mounting Crossmember New OEM 2015-19 Silverado Sierra 6.0L 23108758-1
$72.11 - $72.11
$72.11
$72.11 - $72.11
$72.11

Transmission Mounting Crossmember New OEM 2015-19 Silverado Sierra 6.0L 23108758

in stock

Transmission Mounting Crossmember Support Description: Transmission Mounting Crossmember Support Part Number: 23108758 Condition: New OE...

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SKU: 2030255

$72.11 - $72.11
$72.11
$72.11 - $72.11
$72.11
Parking Brake Control Module 2016-19 Silverado Sierra 2500 3500 84459688-1
$54.40 - $54.40
$54.40
$54.40 - $54.40
$54.40

Parking Brake Control Module 2016-19 Silverado Sierra 2500 3500 84459688

in stock

Parking Brake Control Module Description: Parking Brake Control Module Part Number: 84459688 Condition: New OEM, Generic Packaging Oth...

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SKU: 2030254

$54.40 - $54.40
$54.40
$54.40 - $54.40
$54.40
Fuel/Water Separator Filter & Housing 2017-19 Silverado Sierra L5P 6.6L 23149526-1
$63.74 - $63.74
$63.74
$63.74 - $63.74
$63.74

Fuel/Water Separator Filter & Housing 2017-19 Silverado Sierra L5P 6.6L 23149526

in stock

Filter & Housing, Fuel/Water Separator - 6.6L (23322271-Bracket, Primary) Description: Filter & Housing, Fuel/Water Separator - 6.6L...

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SKU: 2030252

$63.74 - $63.74
$63.74
$63.74 - $63.74
$63.74
Manual Crank Window Regulator Front Right 2015-18 Silverado Sierra 23453652-1
$60.45 - $60.45
$60.45
$60.45 - $60.45
$60.45

Manual Crank Window Regulator Front Right 2015-18 Silverado Sierra 23453652

in stock

Right Hand (Passenger) Side Front Door Window Regulator, Manual Crank Window Description: Right Hand (Passenger) Side Front Door Window Regu...

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SKU: 2030253

$60.45 - $60.45
$60.45
$60.45 - $60.45
$60.45
New OEM GM Rear AC Suction Hose 2015-19 Silverado Sierra 2500 3500 6.0L 22967987-1
$61.01 - $61.01
$61.01
$61.01 - $61.01
$61.01

New OEM GM Rear AC Suction Hose 2015-19 Silverado Sierra 2500 3500 6.0L 22967987

in stock

Rear AC Suction Hose Description: Rear AC Suction Hose Part Number: 22967987, 23443875 Condition: New OEM, Generic Packaging Other Inf...

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SKU: 2030251

$61.01 - $61.01
$61.01
$61.01 - $61.01
$61.01

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