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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 RH Paragon Bronze GGX Cadillac DTS CTS Deville Seville 20857697-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle RH Paragon Bronze GGX Cadillac DTS CTS Deville Seville 20857697

in stock

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010258

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle RH Mary Kay Pink 08U Cadillac DTS CTS Deville Seville 20857697-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle RH Mary Kay Pink 08U Cadillac DTS CTS Deville Seville 20857697

Only 2 left!

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010256

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle RH White Diamond 98U Cadillac DTS CTS Deville Seville 20857697-1
$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49

Door Handle RH White Diamond 98U Cadillac DTS CTS Deville Seville 20857697

in stock

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010255

$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49
Door Handle RH Right Black 41U Cadillac DTS CTS Deville Seville 20857697-1
$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49

Door Handle RH Right Black 41U Cadillac DTS CTS Deville Seville 20857697

Only 1 left!

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010254

$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49
Door Handle RH Right White 40U Cadillac DTS CTS Deville Seville 20857697-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle RH Right White 40U Cadillac DTS CTS Deville Seville 20857697

in stock

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010253

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle RH Crystal Claret Red 89U Cadillac DTS CTS Deville Seville 20857697-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle RH Crystal Claret Red 89U Cadillac DTS CTS Deville Seville 20857697

Only 3 left!

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010252

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle RH Right Cyber Grey 57U Cadillac DTS CTS Deville Seville 20857697-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle RH Right Cyber Grey 57U Cadillac DTS CTS Deville Seville 20857697

in stock

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010251

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle RH Switchblade Silver 17U Cadillac DTS CTS Deville Seville 20857697-1
$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49

Door Handle RH Switchblade Silver 17U Cadillac DTS CTS Deville Seville 20857697

in stock

Right (Passenger's Side) Front or Rear Exterior Door Handle Description: Right (Passenger's Side) Front or Rear Exterior Door Handle Part ...

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SKU: 1010250

$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49
Door Handle LH Rear Paragon Bronze GGX Cadillac DTS CTS Deville Seville 20857696-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle LH Rear Paragon Bronze GGX Cadillac DTS CTS Deville Seville 20857696

in stock

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857726...

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SKU: 1010249

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle LH Rear Tiara Tan 97U Cadillac DTS CTS Deville Seville 20857696-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle LH Rear Tiara Tan 97U Cadillac DTS CTS Deville Seville 20857696

in stock

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857724...

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SKU: 1010248

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle LH Rear Mary Kay Pink 08U Cadillac DTS CTS Deville Seville 20857696-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle LH Rear Mary Kay Pink 08U Cadillac DTS CTS Deville Seville 20857696

Only 2 left!

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857720...

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SKU: 1010247

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle LH Left Rear Black 41U Cadillac DTS CTS Deville Seville 20857696-1
$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49

Door Handle LH Left Rear Black 41U Cadillac DTS CTS Deville Seville 20857696

in stock

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857716...

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SKU: 1010245

$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49
Door Handle LH Left Rear White 40U Cadillac DTS CTS Deville Seville 20857696-1
$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49

Door Handle LH Left Rear White 40U Cadillac DTS CTS Deville Seville 20857696

in stock

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857714...

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SKU: 1010244

$30.49 - $30.49
$30.49
$30.49 - $30.49
$30.49
DTS CTS Deville Seville Door Handle LH Rear Crystal Claret Red 89U 20857696-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

DTS CTS Deville Seville Door Handle LH Rear Crystal Claret Red 89U 20857696

Only 5 left!

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857710...

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SKU: 1010243

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle LH Rear Cyber Grey 57U Cadillac DTS CTS Deville Seville 20857696-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle LH Rear Cyber Grey 57U Cadillac DTS CTS Deville Seville 20857696

Only 5 left!

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857702...

View full details

SKU: 1010242

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Door Handle LH Rear Switchblade Silver 17U DTS CTS Deville Seville 20857696-1
$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44

Door Handle LH Rear Switchblade Silver 17U DTS CTS Deville Seville 20857696

Only 2 left!

Left (Driver's Side) Rear Exterior Door Handle Description: Left (Driver's Side) Rear Exterior Door Handle Part Number: 20857696, 20857700...

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SKU: 1010241

$27.44 - $27.44
$27.44
$27.44 - $27.44
$27.44
Hazard Switch w/Nova Silver Bezel 2008-11 Buick Lucerne 15814150 25810391-1
$10.96 - $10.96
$10.96
$10.96 - $10.96
$10.96

Hazard Switch w/Nova Silver Bezel 2008-11 Buick Lucerne 15814150 25810391

in stock

Hazard Switch With Nova Silver Bezel Description: Hazard Switch With Nova Silver Bezel Part Number: 25810391 Condition: New OEM, Generic...

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SKU: 1010236

$10.96 - $10.96
$10.96
$10.96 - $10.96
$10.96
Diagnostic Module Unit New OEM GM 2011 Chevy Volt 13574895-1
$103.77 - $103.77
$103.77
$103.77 - $103.77
$103.77

Diagnostic Module Unit New OEM GM 2011 Chevy Volt 13574895

in stock

Diagnostic Module

SKU: 1010216

$103.77 - $103.77
$103.77
$103.77 - $103.77
$103.77
Rearview Mirror w/Auto Headlamp Control TQ5 2006-11 Cadillac DTS 15839510-1
$139.77 - $139.77
$139.77
$139.77 - $139.77
$139.77

Rearview Mirror w/Auto Headlamp Control TQ5 2006-11 Cadillac DTS 15839510

Only 3 left!

Interior Rearview Mirror, With Auto Headlamp Control, Without OnStar Description: Interior Rearview Mirror, With Auto Headlamp Control, With...

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SKU: 1010204

$139.77 - $139.77
$139.77
$139.77 - $139.77
$139.77
Shark Fin Antenna Cover Crystal Claret 89U 45911 Buick Lucerne 25840143 25840137-1
$19.52 - $19.52
$19.52
$19.52 - $19.52
$19.52

Shark Fin Antenna Cover Crystal Claret 89U 45911 Buick Lucerne 25840143 25840137

Only 2 left!

Crystal Claret Red (89U RPO Code, 505Q Paint Code) "Shark Fin" Style Antenna Cover (Cover ONLY) Description: Crystal Claret Red (89U RPO Cod...

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SKU: 1010138

$19.52 - $19.52
$19.52
$19.52 - $19.52
$19.52
New OEM GM Interior Analog Clock 2007-11 Cadillac DTS 25971999-1
$33.26 - $33.26
$33.26
$33.26 - $33.26
$33.26

New OEM GM Interior Analog Clock 2007-11 Cadillac DTS 25971999

in stock

Analog Clock With Chrome Bezel Description: Analog Clock With Chrome Bezel Part Number: 25971999 Condition: New OEM, Generic Packaging ...

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SKU: 1010172

$33.26 - $33.26
$33.26
$33.26 - $33.26
$33.26
Shark Fin Antenna Cover Paragon Bronze GGX 45911 Buick Lucerne 25980837 25840137-1
$19.50 - $19.50
$19.50
$19.50 - $19.50
$19.50

Shark Fin Antenna Cover Paragon Bronze GGX 45911 Buick Lucerne 25980837 25840137

Only 1 left!

Paragon Bronze (GGX RPO Code, 644R Paint Code) "Shark Fin" Style Antenna Cover (Cover ONLY) Description: Paragon Bronze (GGX RPO Code, 644R ...

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SKU: 1010140

$19.50 - $19.50
$19.50
$19.50 - $19.50
$19.50
Sharkfin Antenna Cover Crystal Claret 89U 2009-11 Cadillac DTS 25838934 25838935-1
$24.41 - $24.41
$24.41
$24.41 - $24.41
$24.41

Sharkfin Antenna Cover Crystal Claret 89U 2009-11 Cadillac DTS 25838934 25838935

Only 1 left!

Crystal Claret Red (89U RPO, 505Q Paint Code) "Shark Fin" Style Antenna Cover (Cover ONLY) Description: Crystal Claret Red (89U RPO, 505Q Pa...

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SKU: 1010131

$24.41 - $24.41
$24.41
$24.41 - $24.41
$24.41
Sharkfin Antenna Cover White 40U 2009-11 Cadillac DTS 25838923 25838934 25838935-1
$24.39 - $24.39
$24.39
$24.39 - $24.39
$24.39

Sharkfin Antenna Cover White 40U 2009-11 Cadillac DTS 25838923 25838934 25838935

in stock

White (40U RPO, 8554 Paint Code) "Shark Fin" Style Antenna Cover (Cover ONLY) Description: White (40U RPO, 8554 Paint Code) "Shark Fin" Styl...

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SKU: 1010128

$24.39 - $24.39
$24.39
$24.39 - $24.39
$24.39

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