Skip to content
Help center
Shopping For:

Select Your Vehicle

Shop paint, body parts, and accessories that fit.
Shop Parts

2012 GMC Sierra 3500 HD SLT

Your color. Matched exactly.

Guided finder matches your factory shade, format, and kit before you add to cart.

Shop paint now
Partify touch-up paint products

Filters

  • 2007-2013 GMC Sierra 1500/2500/3500 SL/SLE/SLT/WT Passenger Side Tail Light Assembly 1St Design - GM2801208-Partify-Painted-Replacement-Body-Parts
    $138.45
    $138.45
    $138.45
    $138.45

    2012 GMC Sierra 3500 HD SLT Passenger Side Tail Light Assembly 1St Design With 3047 Backup Bulb - GM2801208

    In stock
    Fitment: 2007-2010 GMC Sierra 2502007-2010 GMC Sierra 3502007-2013 GMC Sierra 1500 SL, 2007-2013 GMC Sierra 1500 SLE, 2007-2013 GMC Sierra 1500 SLT, 2007-2013 GMC Sierra 1500 WT

    The GMC Sierra 1500/2500/3500 SL/SLE/SLT/WT Passenger Side Tail Light Assembly 1St Design part number GM2801208 is a compatible replacement for m...

    View full details
    $138.45
    $138.45
    $138.45
    $138.45
  • 2011-2014 GMC Sierra 2500/3500 Denali Front Bumper Grille - GM1036166-Partify-Painted-Replacement-Body-Parts
    $0.00
    $0.00
    $297.20
    $297.20
    $297.20

    2012 GMC Sierra 3500 HD SLT Front Bumper Grille - GM1036166

    In stock

    The GMC Sierra 2500/3500 Denali Front Bumper Grille part number GM1036166 is a compatible replacement for model years 2011, 2012, 2013, 2014. Thi...

    View full details
    $0.00
    $0.00
    $297.20
    $297.20
    $297.20
  • 2007-2013 Chevrolet Silverado 1500/2500/3500 Hybrid/GMC Sierra 1500/Sierra 2500/Sierra 3500 Hybrid Rear Bumper Step Pad Center W/O Rear Object Sensors - GM1191129-Partify-Painted-Replacement-Body-Parts
    $100.73
    $100.73
    $100.73
    $100.73

    2012 GMC Sierra 3500 HD SLT Rear Bumper Step Pad Center W/O Rear Object Sensors - GM1191129

    In stock
    Fitment: 2007-2010 Chevrolet Silverado 2502007-2010 Chevrolet Silverado 3502007-2010 GMC Sierra 2502007-2010 GMC Sierra 3502009-2013 Chevrolet Silverado 1500 Hybrid, 2009-2013 GMC Sierra 1500 Hybrid

    The Chevrolet Silverado 1500/2500/3500 Hybrid/GMC Sierra 1500/Sierra 2500/Sierra 3500 Hybrid Rear Bumper Step Pad Center W/O Rear Object Sensors ...

    View full details
    $100.73
    $100.73
    $100.73
    $100.73
  • 2007-2014 GMC Sierra 1500/2500/3500 Hybrid Rear Driver Side Wheel Housing - GM1710106-Partify-Painted-Replacement-Body-Parts
    $334.55
    $334.55
    $334.55
    $334.55

    2012 GMC Sierra 3500 HD SLT Rear Driver Side Wheel Housing - GM1710106

    In stock
    Fitment: 2007-2013 GMC Sierra 1500, 2007-2014 GMC Sierra 2500, 2007-2014 GMC Sierra 3500, 2009-2013 GMC Sierra 1500 Hybrid

    The GMC Sierra 1500/2500/3500 Hybrid Rear Driver Side Wheel Housing part number GM1710106 is a compatible replacement for model years 2007, 2008,...

    View full details
    $334.55
    $334.55
    $334.55
    $334.55
  • 1999-2019 Chevrolet Silverado 1500/2500/GMC Sierra 1500/Sierra 2500/Sierra 3500 Driver Side Rocker Panel Front Inner Panel - GM1600109-Partify-Painted-Replacement-Body-Parts
    $120.54
    $120.54
    $120.54
    $120.54

    2012 GMC Sierra 3500 HD SLT Driver Side Rocker Panel Front Inner Panel - GM1600109

    In stock
    Fitment: 1999-2018 Chevrolet Silverado 1500, 1999-2018 GMC Sierra 1500, 2007-2019 Chevrolet Silverado 2500, 2007-2019 GMC Sierra 2500, 2007-2019 GMC Sierra 3500

    The Chevrolet Silverado 1500/2500/GMC Sierra 1500/Sierra 2500/Sierra 3500 Driver Side Rocker Panel Front Inner Panel part number GM1600109 is a c...

    View full details
    $120.54
    $120.54
    $120.54
    $120.54
  • 2007-2014 Chevrolet Silverado 2500/GMC Sierra 2500/Sierra 3500 Rear Driver Side Bumper Step Pad Dual Rear Wheels - GM1196103-Partify-Painted-Replacement-Body-Parts
    $96.14
    $96.14
    $96.14
    $96.14

    2012 GMC Sierra 3500 HD SLT Rear Driver Side Bumper Step Pad Dual Rear Wheels - GM1196103

    In stock
    Fitment: 2007-2014 Chevrolet Silverado 2500, 2007-2014 GMC Sierra 2500, 2007-2014 GMC Sierra 3500

    The Chevrolet Silverado 2500/GMC Sierra 2500/Sierra 3500 Rear Driver Side Bumper Step Pad Dual Rear Wheels part number GM1196103 is a compatible ...

    View full details
    $96.14
    $96.14
    $96.14
    $96.14
  • 2007-2014 Chevrolet Silverado 2500/GMC Sierra 2500/Sierra 3500 Rear Passenger Side Bumper Step Pad Dual Rear Wheels - GM1197103-Partify-Painted-Replacement-Body-Parts
    $96.14
    $96.14
    $96.14
    $96.14

    2012 GMC Sierra 3500 HD SLT Rear Passenger Side Bumper Step Pad Dual Rear Wheels - GM1197103

    In stock
    Fitment: 2007-2014 Chevrolet Silverado 2500, 2007-2014 GMC Sierra 2500, 2007-2014 GMC Sierra 3500

    The Chevrolet Silverado 2500/GMC Sierra 2500/Sierra 3500 Rear Passenger Side Bumper Step Pad Dual Rear Wheels part number GM1197103 is a compatib...

    View full details
    $96.14
    $96.14
    $96.14
    $96.14
  • 2007-2014 Chevrolet Silverado 1500/2500/3500/GMC Sierra 1500/Sierra 2500/Sierra 3500 Front Passenger Side Exterior Door Handle W/O Key Hole Smooth Plastic - GM1311161-Partify-Painted-Replacement-Body-Parts
    $57.27
    $57.27
    $57.27
    $57.27

    2012 GMC Sierra 3500 HD SLT Front Passenger Side Exterior Door Handle W/O Key Hole Smooth Plastic - GM1311161

    In stock
    Fitment: 2007-2013 Chevrolet Silverado 1500, 2007-2013 GMC Sierra 1500, 2007-2014 Chevrolet Silverado 2500, 2007-2014 Chevrolet Silverado 3500, 2007-2014 GMC Sierra 2500, 2007-2014 GMC Sierra 3500

    The Chevrolet Silverado 1500/2500/3500/GMC Sierra 1500/Sierra 2500/Sierra 3500 Front Passenger Side Exterior Door Handle W/O Key Hole Smooth Plas...

    View full details
    $57.27
    $57.27
    $57.27
    $57.27
  • 1999-2019 Chevrolet Silverado 1500/1500 LD/2500/GMC Sierra 1500/Sierra 2500/Sierra 3500 Passenger Side Rocker Panel Inner Panel - GM1601111-Partify-Painted-Replacement-Body-Parts
    $285.16
    $285.16
    $285.16
    $285.16

    2012 GMC Sierra 3500 HD SLT Passenger Side Rocker Panel Inner Panel - GM1601111

    In stock
    Fitment: 1999-2018 Chevrolet Silverado 1500, 1999-2018 GMC Sierra 1500, 2007-2018 GMC Sierra 3500, 2007-2019 Chevrolet Silverado 2500, 2007-2019 GMC Sierra 2500, 2019 Chevrolet Silverado 1500 LD

    The Chevrolet Silverado 1500/1500 LD/2500/GMC Sierra 1500/Sierra 2500/Sierra 3500 Passenger Side Rocker Panel Inner Panel part number GM1601111 i...

    View full details
    $285.16
    $285.16
    $285.16
    $285.16
  • 2007-2014 GMC Sierra 1500/2500/3500 Passenger Side Headlight Assembly Composite - GM2503283-Partify-Painted-Replacement-Body-Parts
    $191.08
    $191.08
    $191.08
    $191.08

    2012 GMC Sierra 3500 HD SLT Passenger Side Headlight Assembly Composite - GM2503283

    In stock
    Fitment: 2007-2013 GMC Sierra 1502007-2014 GMC Sierra 2502007-2014 GMC Sierra 3500

    The GMC Sierra 1500/2500/3500 Passenger Side Headlight Assembly Composite part number GM2503283 is a compatible replacement for model years 2007,...

    View full details
    $191.08
    $191.08
    $191.08
    $191.08
  • 2007-2014 GMC Sierra 1500/2500/3500 Driver Side Headlight Bracket - GM2508119-Partify-Painted-Replacement-Body-Parts
    $50.68
    $50.68
    $50.68
    $50.68

    2012 GMC Sierra 3500 HD SLT Driver Side Headlight Bracket - GM2508119

    In stock
    Fitment: 2007-2013 GMC Sierra 1502007-2014 GMC Sierra 2502007-2014 GMC Sierra 3500

    The GMC Sierra 1500/2500/3500 Driver Side Headlight Bracket part number GM2508119 is a compatible replacement for model years 2007, 2008, 2009, 2...

    View full details
    $50.68
    $50.68
    $50.68
    $50.68
  • 2011-2014 GMC SIERRA 2500/3500 Chrome Hood Molding - GM1235119-Partify-Painted-Replacement-Body-Parts
    Save up to 46% Save %
    $273.46
    $273.46
    $273.46
    $147.74
    $147.74
    $147.74

    2012 GMC Sierra 3500 HD SLT Hood Molding - GM1235119

    In stock
    Fitment: 2011-2014 GMC SIERRA 2500/3500

    The GMC SIERRA 2500/3500 Chrome Hood Molding part number GM1235119 is a compatible replacement for model years 2011, 2012, 2013, 2014. This hood ...

    View full details
    $273.46
    $273.46
    $273.46
    $147.74
    $147.74
    $147.74
    Save up to 46% Save %
  • 2011-2014 GMC Sierra 2500/3500 Front Driver Side Fender Liner Lower 2500/3500 - GM1248234-Partify-Painted-Replacement-Body-Parts
    Save up to 29% Save %
    $249.00
    $249.00
    $249.00
    $40.42
    $40.42
    $40.42

    2012 GMC Sierra 3500 HD SLT Front Driver Side Fender Liner Lower 2500/3500 - GM1248234

    In stock
    Fitment: GMC Sierra 2500/3500 2011-2014

    The GMC Sierra 2500/3500 Front Driver Side Fender Liner Lower 2500/3500 part number GM1248234 is a compatible replacement for model years 2011, 20...

    View full details
    $249.00
    $249.00
    $249.00
    $40.42
    $40.42
    $40.42
    Save up to 29% Save %
  • 2007-2014 Chrome Chevrolet Silverado/GMC Sierra 1500/2500/3500/Base/Hybrid Driver Side Rear Bumper End With Sensor Holes - GM1104147-Partify-Painted-Replacement-Body-Parts
    Save up to 64% Save %
    $0.00
    $0.00
    $0.00
    $140.94
    $140.94
    $140.94

    2012 GMC Sierra 3500 HD SLT Rear Driver Side Bumper End With Sensor Holes With Park Assist Sensors Chrome Sensor Holes - GM1104147

    In stock
    Fitment: CHEVROLET SILVERADO 1500 2007-2013, CHEVROLET SILVERADO 2500/3500 2011-2014, GMC SIERRA 1500 BASE/HYBRID 2007-2013, GMC SIERRA 2500/3500 2011-2014

    The Chrome Chevrolet Silverado 2500/3500 Driver Side Rear Bumper End With Sensor Holes part number GM1104147 is a compatible replacement for mode...

    View full details
    $0.00
    $0.00
    $0.00
    $140.94
    $140.94
    $140.94
    Save up to 64% Save %
  • 2011-2014 GMC Sierra 2500/3500 Hood - GM1230402-Partify-Painted-Replacement-Body-Parts
    Save up to 65% Save %
    $0.00
    $0.00
    $0.00
    $916.52
    $916.52
    $916.52

    2012 GMC Sierra 3500 HD SLT Hood - GM1230402

    In stock
    Fitment: 2011-2014 GMC Sierra 2500, 2011-2014 GMC Sierra 3500

    The GMC Sierra 2500/3500 Hood part number GM1230402 is a compatible replacement for model years 2011, 2012, 2013, 2014. This Hood is designed to ...

    View full details
    $0.00
    $0.00
    $0.00
    $916.52
    $916.52
    $916.52
    Save up to 65% Save %
  • Chevrolet/GMC Sierra 2500 HD/Sierra 3500 HD/Silverado 3500 HD RPO-RS7/Dual Rear Wheels/Front Wheel - GM5992128
    $1,299.99
    $1,299.99
    $1,299.99
    $1,299.99

    2012 GMC Sierra 3500 HD SLT Front Wheel - GM5992128

    In stock

    The Chevrolet/GMC Sierra Front Wheel HD/Sierra 3500 HD/Silverado 3500 HD Front Wheel part number GM5992128 is a compatible replacement for model ...

    View full details
    $1,299.99
    $1,299.99
    $1,299.99
    $1,299.99
  • Chevrolet/GMC Sierra 2500 HD/Sierra 3500 HD/Silverado 2500 HD/Silverado 3500 HD Dual Rear Wheels/Rear/Outer Wheel - GM5992127
    $1,299.99
    $1,299.99
    $1,299.99
    $1,299.99

    2012 GMC Sierra 3500 HD SLT Rear Wheel - GM5992127

    In stock

    The Chevrolet/GMC Sierra Rear Wheel HD/Sierra 3500 HD/Silverado Rear Wheel HD/Silverado 3500 HD Rear Wheel part number GM5992127 is a compatible ...

    View full details
    $1,299.99
    $1,299.99
    $1,299.99
    $1,299.99
  • Chevrolet/GMC Sierra 2500 HD/Sierra 3500 HD/Silverado 2500 HD/Silverado 3500 HD Single Rear Wheels Wheel - GM5990139
    $291.52
    $291.52
    $291.52
    $291.52

    2012 GMC Sierra 3500 HD SLT Wheel - GM5990139

    In stock

    The Chevrolet/GMC Sierra Wheel HD/Sierra 3500 HD/Silverado Wheel HD/Silverado 3500 HD Wheel part number GM5990139 is a compatible replacement for...

    View full details
    $291.52
    $291.52
    $291.52
    $291.52
  • Chevrolet/GMC Sierra 3500 HD/Silverado 3500 HD Dual Rear Wheels Wheel - GM5990135
    $391.80
    $391.80
    $391.80
    $391.80

    2012 GMC Sierra 3500 HD SLT Wheel - GM5990135

    In stock

    The Chevrolet/GMC Sierra Wheel HD/Silverado Wheel HD Wheel part number GM5990135 is a compatible replacement for model years 2011, 2012, 2013, 20...

    View full details
    $391.80
    $391.80
    $391.80
    $391.80
  • Chevrolet/GMC Sierra 2500 HD/Sierra 3500 HD/Silverado 2500 HD/Silverado 3500 HD Diesel Eng Power Steering Reservoir 8 Cyl 6.6L - GM4542105
    $127.93
    $127.93
    $127.93
    $127.93

    2012 GMC Sierra 3500 HD SLT Power Steering Reservoir 8 Cyl 6.6L - GM4542105

    In stock

    The Chevrolet/GMC Sierra Power Steering Reservoir HD/Sierra 3500 HD/Silverado Power Steering Reservoir HD/Silverado 3500 HD Power Steering Reserv...

    View full details
    $127.93
    $127.93
    $127.93
    $127.93
  • 2011-2014 GMC Sierra 2500/3500 Grille Air Deflector Lower Air Baffle 6L V8 - GM1218164-Partify-Painted-Replacement-Body-Parts
    $219.09
    $219.09
    $219.09
    $219.09

    2012 GMC Sierra 3500 HD SLT Grille Air Deflector Lower Air Baffle 6L V8 - GM1218164

    In stock
    Fitment: 2011-2014 GMC Sierra 2502011-2014 GMC Sierra 3500

    The GMC Sierra 2500/3500 Grille Air Deflector Lower Air Baffle 6L V8 part number GM1218164 is a compatible replacement for model years 2011, 2012...

    View full details
    $219.09
    $219.09
    $219.09
    $219.09
  • 2011-2019 Chevrolet Silverado 2500/3500/GMC Sierra 2500/Sierra 3500 Lower Engine Cover Mat: Pe/Vacuum Form - GM1228166-Partify-Painted-Replacement-Body-Parts
    $60.91
    $60.91
    $60.91
    $60.91

    2012 GMC Sierra 3500 HD SLT Lower Engine Cover Mat: Pe/Vacuum Form - GM1228166

    In stock
    Fitment: 2011-2019 Chevrolet Silverado 2502011-2019 Chevrolet Silverado 3502011-2019 GMC Sierra 2502011-2019 GMC Sierra 3500

    The Chevrolet Silverado 2500/3500/GMC Sierra 2500/Sierra 3500 Lower Engine Cover Mat: Pe/Vacuum Form part number GM1228166 is a compatible replac...

    View full details
    $60.91
    $60.91
    $60.91
    $60.91
  • 2011-2014 Chevrolet Silverado 2500/GMC Sierra 2500/Sierra 3500 Front Driver Side Bumper Bracket Bracket Kit - GM1066195-Partify-Painted-Replacement-Body-Parts
    $64.42
    $64.42
    $64.42
    $64.42

    2012 GMC Sierra 3500 HD SLT Front Driver Side Bumper Bracket Bracket Kit - GM1066195

    In stock
    Fitment: 2011-2014 Chevrolet Silverado 2502011-2014 GMC Sierra 2502011-2014 GMC Sierra 3500

    The Chevrolet Silverado 2500/GMC Sierra 2500/Sierra 3500 Front Driver Side Bumper Bracket Bracket Kit part number GM1066195 is a compatible repla...

    View full details
    $64.42
    $64.42
    $64.42
    $64.42
  • 2007-2014 GMC Sierra 1500/2500/3500 Driver Side Grille Air Deflector Side Baffle - GM1218108-Partify-Painted-Replacement-Body-Parts
    $82.62
    $82.62
    $82.62
    $82.62

    2012 GMC Sierra 3500 HD SLT Driver Side Grille Air Deflector Side Baffle - GM1218108

    In stock
    Fitment: 2007-2013 GMC Sierra 1502007-2014 GMC Sierra 2502007-2014 GMC Sierra 3500

    The GMC Sierra 1500/2500/3500 Driver Side Grille Air Deflector Side Baffle part number GM1218108 is a compatible replacement for model years 2007...

    View full details
    $82.62
    $82.62
    $82.62
    $82.62

2012 GMC Sierra 3500 HD SLT

Shop the best selection of replacement auto parts for your 2012 GMC Sierra 3500 HD SLT. We offer precision-fit bumpers, hoods, grilles, fender liners, & more. All designed exclusively for your vehicle’s submodel. With our painted-to-match service, every part receives an expert factory-quality finish, perfectly matching your Sierra 3500 HD. Enjoy fast turnaround, reliable fitment, and lasting durability—upgrade your 2012 GMC Sierra 3500 HD SLT with parts trusted by auto body professionals.