Alternator for 2012 GMC Sierra 3500 HD
Categories
- Back Panel
- Body Mounting
- Box Rails
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Jack & Components
- Labels
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Reveal Moldings
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Splash Shields
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Communication System Components
- Daytime Running Lamps
- Diesel Components
- Driver Information Center
- Electrical Components
- Entertainment System Components
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Navigation System
- Navigation System Components
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Senders
- Sensors
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Back Panel
- Body Mounting
- Box Rails
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Jack & Components
- Labels
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Reveal Moldings
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Splash Shields
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Communication System Components
- Daytime Running Lamps
- Diesel Components
- Driver Information Center
- Electrical Components
- Entertainment System Components
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Navigation System
- Navigation System Components
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Senders
- Sensors
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
Browse Categories
Select category
- Back Panel
- Body Mounting
- Box Rails
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Jack & Components
- Labels
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Reveal Moldings
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Splash Shields
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Communication System Components
- Daytime Running Lamps
- Diesel Components
- Driver Information Center
- Electrical Components
- Entertainment System Components
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Navigation System
- Navigation System Components
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Senders
- Sensors
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
- Back Panel
- Body Mounting
- Box Rails
- Bumper & Components - Front
- Bumper & Components - Rear
- Cab Assembly
- Center Console
- Cluster & Switches
- Cowl
- Door & Components
- Ducts
- Exterior Trim - Cab
- Exterior Trim - Fender
- Exterior Trim - Front Door
- Exterior Trim - Hood
- Exterior Trim - Pick UP Box
- Exterior Trim - Rear Door
- Fender & Components
- Floor - Cab
- Frame & Components
- Front Door
- Front Seat Components
- Glass - Front Door
- Glass - Rear Door
- Glass - Windshield
- Glass & Hardware - Back
- Glove Box
- Grille & Components
- Hood & Components
- Instrument Panel
- Interior Trim - Cab
- Interior Trim - Front Door
- Interior Trim - Rear Door
- Jack & Components
- Labels
- Lock & Hardware
- Luggage Carrier
- Master Cylinder - Components On Dash Panel
- Outside Mirrors
- Overhead Console
- Pick UP Box Components
- Radiator Support
- Rear Door
- Rear Seat Components
- Reveal Moldings
- Roof & Components
- Roof Lamps
- Running Board
- Seat Belt
- Sound System
- Spare Tire Carrier
- Splash Shields
- Sunroof
- Tail Gate
- Tailgate
- Trailer Hitch Components
- Uniside
- Wiper & Washer Components
- ABS Components
- Air Bag Components
- Alternator
- Antenna & Radio
- Battery
- Battery & Related Components
- Bulbs - Chassis
- Combination Lamps
- Communication System Components
- Daytime Running Lamps
- Diesel Components
- Driver Information Center
- Electrical Components
- Entertainment System Components
- Flasher Units, Fuses, & Circuit Breakers
- Fog Lamps
- Front Door
- Front Seat Belts
- Fuse & Relay
- Headlamp Components
- Heated Seats
- High Mount Lamps
- Horn
- Identification Lamps
- Ignition Lock
- Ignition System
- Instruments & Gauges
- Keyless Entry Components
- License Lamps
- Lighting - Exterior
- Lighting - Interior
- Lumbar Control Seats
- Mirrors
- Navigation System
- Navigation System Components
- Parking Aid
- Power Seats
- Powertrain Control
- Rear Door
- Rear Seat Belts
- Senders
- Sensors
- Starter
- Sunroof
- Switches
- Switches, Solenoids & Actuators
- Tire Pressure Monitor Components
- Wipers
- Wire, Cable & Related Components
- Wiring Harness
- A/C Condenser & Evaporator
- A/C Flow Restrictors
- Automatic Temperature Controls
- Blower Motor & Fan
- Condenser, Compressor & Lines
- Control Modules
- Controls
- Evaporator & Heater Components
- Gaskets & Sealing Systems
- Hardware, Fasteners & Fittings
- Heater
- Hoses & Pipes
- HVAC Case
- Motors, Core, Case & Related Components
- Sensors
- Switches, Solenoids & Actuators
- Temperature Controls & Related Components
Alternator for 2012 GMC Sierra 3500 HD
9
- $10.49Mount Bracket SpacerGM2.8L. 6.6L diesel, 18.5mm. Auxiliary, 6.6L diesel. Primary, 6.6L diesel. 6.6L diesel. 15x18.5. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
- $10.14Mount Bracket SpacerGM6.6L diesel, 15.5mm. 6.6L diesel. 15.5x18.9. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
9
- $10.49Mount Bracket SpacerGM2.8L. 6.6L diesel, 18.5mm. Auxiliary, 6.6L diesel. Primary, 6.6L diesel. 6.6L diesel. 15x18.5. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
- $10.14Mount Bracket SpacerGM6.6L diesel, 15.5mm. 6.6L diesel. 15.5x18.9. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
9
- $10.49Mount Bracket SpacerGM2.8L. 6.6L diesel, 18.5mm. Auxiliary, 6.6L diesel. Primary, 6.6L diesel. 6.6L diesel. 15x18.5. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
- $10.14Mount Bracket SpacerGM6.6L diesel, 15.5mm. 6.6L diesel. 15.5x18.9. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
No.
Part # / Description / Price
Price
1
2007-2014 GM - Alternator 
GM
GM Positions: Right
Notes: PARTS: Part numbers are for remanufactured alternators. Contact local dealer for possible core charge and exchange information.
Description: Silverado, sierra. Without diesel. 125 amp. 6.6L turbo diesel, with dual alternator. 6.0L, 125 amp. Dual Alternator. 125 Amp. Single Alternator. 125 Amp. Escalade ESV. 125 amp. Express, savana. All. 5.3l. 125 amp. Newly manufactured as an exact replacement for your GM vehicle's original alternator
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $576.02
$318.16
MSRP $576.02
$318.16
2
2011-2012 GM - Multi-Purpose Bracket GM
GM Positions: Right
Description: 6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $32.72
$21.40
MSRP $32.72
$21.40
4
1992-2019 GM - M10x1.5x65 Multi-Purpose Bolt GM
GM Positions: Right
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $6.84
$4.86
MSRP $6.84
$4.86
5
1998-2024 GM - Mount Bracket Lower Bolt GM
GM Positions: Left
Description: 6.6L DIESEL. with dual alternators. 4.0L.
6
1999-2024 GM - M10x1.5x95.75 Multi-Purpose Bolt GM
GM Positions: Left
Description: This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $9.65
$6.88
MSRP $9.65
$6.88
7
2007-2024 GM - Multi-Purpose Stud GM
GM Positions: Left
Description: 6.6L turbo diesel, without dual alternator. Primary, 6.6L diesel. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $8.12
$5.79
MSRP $8.12
$5.79
8
1992-2024 GM - M10x1.5 Multi-Purpose Nut GM
GM Positions: Right
Description: Helps align and secure various components
This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type
MSRP $8.94
$5.59
MSRP $8.94
$5.59
9
2011-2024 GM - Multi-Purpose Bushing GM
GM Positions: Right
Notes: PARTS: Part included with mount bracket.
Description: 2.8L. 6.6L diesel, 18.5mm. Auxiliary, 6.6L diesel. Primary, 6.6L diesel. 6.6L diesel. 15x18.5. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $15.33
$10.49
MSRP $15.33
$10.49
9
2011-2024 GM - Multi-Purpose Bushing GM
GM Positions: Left
Notes: PARTS: Part included with mount bracket.
Description: 6.6L diesel, 15.5mm. 6.6L diesel. 15.5x18.9. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $14.83
$10.14
MSRP $14.83
$10.14
10
2003-2025 GM - Alternator Bracket GM
GM Positions: Left
Description: 6.6L diesel. Support bracket. This GM Genuine Part is designed, engineered, and tested to rigorous standards and is backed by General Motors
MSRP $37.74
$24.75
MSRP $37.74
$24.75