72 products about 2012 GMC Sierra 2500 HD Alternators, Batteries & Starters foundVEHICLE SPECIFIC Product Specifications Notes: Instrument Panel Other Names: Circuit Breaker, Relay Item Dimensions: 1.8 x 1.6 x 0.6 inches Item Weight: 0.30 Pounds Fitment Type: Direct Replacement Part Description: 2012 GMC Sierra 2500 HD Circuit Breaker More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL $12.23 MSRP: $22.22
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 4.8, 5.3, 6.0 & 6.2 Liter Other Names: Bracket, Mount Bracket Item Dimensions: 5.7 x 19.3 x 12.6 inches Item Weight: 8.20 Pounds Fitment Type: Direct Replacement Part Description: 2012 GMC Sierra 2500 HD Bracket More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS $91.10 MSRP: $146.40
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 4.8, 5.3, 6.0 & 6.2 Liter, 145 Amp; Silverado, Sierra; W/O Diesel; 145 Amp Other Names: Alternator Item Dimensions: 9.4 x 8.2 x 7.8 inches Item Weight: 16.20 Pounds Fitment Type: Direct Replacement Replaces: 25968616, 25869451, 15905872, 22781127, 15905874 Part Description: 2012 GMC Sierra 2500 HD Alternator More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $267.58 MSRP: $504.88
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.0 & 6.2 Liter; 6.0 Liter Other Names: Starter Item Dimensions: 13.1 x 7.2 x 6.8 inches Item Weight: 5.40 Pounds Fitment Type: Direct Replacement Part Description: 2012 GMC Sierra 2500 HD Starter More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $253.69 MSRP: $476.91
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Reg Position: Int; Fan Position: Int; Pwr Generation (Amps): 160A Configuration: 6S Fan Position: Internal OE Manufacturer: Delco OE Part Number: 25877026 Power: 160 Amp Regulator Position: Internal Rotation Direction: CW UPC: 762405284019 Part Description: 2012 GMC Sierra 2500 HD Alternator More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: w/Bosch Alt; 120 Amps;w/Single Alt System; 120 Amps;w/Dual Alt System; 120 Amps Amp Rating: 120 Fan Type: Internal New or Remanufactured: Remanufactured OE Manufacturer: Bosch One Wire Capable: NO Pulley Belt Type: Serpentine Pulley Groove Quantity: 6 Pulley Included: Yes Pulley Outside Diameter: 56 Regulator Type: Internal Rotation Direction: Clockwise UPC: 090244128424 Voltage [V]: 9 Part Description: 2012 GMC Sierra 2500 HD Remanufactured Alternator More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L VEHICLE SPECIFIC Product Specifications Notes: 160 Amp; Delco Unit; w/156mm (6 1/8") dia Case; 1st Time Fit Amperage Rating: 160 Family: Delco Remy OE Fan Type: Internal New or Remanufactured: Remanufactured Plug Type: 346 Pulley Included: Yes Regulator Type: Internal Rotation Direction: Clockwise UPC: 042511210516 Voltage: 12.0 Part Description: 2012 GMC Sierra 2500 HD Remanufactured Alternator More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: W/O 6.6 Liter Diesel; 6.0 Liter, Main Battery, W/O Code: 9l4; Silverado, Sierra; 6.0l Other Names: Positive Cable Item Dimensions: 11.8 x 11.3 x 3.9 inches Item Weight: 1.30 Pounds Fitment Type: Direct Replacement Replaces: 25971828 Part Description: 2012 GMC Sierra 2500 HD Positive Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $55.07 MSRP: $103.92
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Mounting Bolt Hole Quantity: 2 New or Remanufactured: Remanufactured Nose Cone Type: Closed Nose OE Manufacturer: Delco/Delphi Power Rating (kW): 2 Rotation Direction: Clockwise Unit Design: Permanent Magnet Planetary Gear Reduction UPC: 090244266416 Voltage [V]: 12 Part Description: 2012 GMC Sierra 2500 HD Remanufactured Starter More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: w/Bosch Alt. Amps: 125 Amps Clock: 12:00 Fan: Internal Manufacturer: Bosch Pulley: 6 Groove Serpentine Regulator: Internal Rotation: Clockwise Volts: 12 Volts Part Description: 2012 GMC Sierra 2500 HD Alternator Remanufactured More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L VEHICLE SPECIFIC Product Specifications Design: Offset Gear Reduction Manufacturer: Hitachi Volts: 12 V Part Description: 2012 GMC Sierra 2500 HD Starter Remanufactured More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.6L VEHICLE SPECIFIC Product Specifications Item Dimensions: 2.8 x 2.8 x 2.1 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Replaces: 13502261 Part Description: 2012 GMC Sierra 2500 HD Sensor More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 6.6 L GAS $19.06 MSRP: $35.94
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Mounting Bolt Hole Quantity: 2 New or Remanufactured: New Nose Cone Type: Closed Nose OE Manufacturer: Delco/Delphi Power Rating (kW): 2 Rotation Direction: Clockwise Unit Design: Permanent Magnet Planetary Gear Reduction UPC: 090244077852 Voltage [V]: 12 Part Description: 2012 GMC Sierra 2500 HD Starter More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: Starter Solenoid, All Other Names: Battery Cable, Positive Cable Item Dimensions: 11.9 x 11.1 x 3.9 inches Item Weight: 1.80 Pounds Fitment Type: Direct Replacement Replaces: 20790045 Part Description: 2012 GMC Sierra 2500 HD Positive Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL $73.71 MSRP: $139.10
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Starter Solenoid, All Other Names: Battery Cable, Positive Cable Item Dimensions: 11.9 x 11.1 x 3.9 inches Item Weight: 1.80 Pounds Fitment Type: Direct Replacement Replaces: 20790045 Part Description: 2012 GMC Sierra 2500 HD Positive Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL $73.71 MSRP: $139.10
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Design: Permanent Magnet Gear Reduction Manufacturer: Delco Power Rating: 1.7 kW Rotation: Clockwise Teeth: 11 Volts: 12 V Part Description: 2012 GMC Sierra 2500 HD Starter Remanufactured More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: w/Remy Alt; 160 Amps Amp Rating: 160 Fan Type: Internal New or Remanufactured: New OE Manufacturer: Delco/Delphi One Wire Capable: NO Pulley Belt Type: Serpentine Pulley Groove Quantity: 6 Pulley Included: Yes Pulley Outside Diameter: 62 Regulator Type: Internal Rotation Direction: Clockwise Voltage [V]: 12 Part Description: 2012 GMC Sierra 2500 HD Alternator More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: w/Delco Alt. Amps: 160 Amps Clock: 3:00 Fan: Internal Manufacturer: Delco Pulley: 6 Groove Serpentine Regulator: Internal Rotation: Clockwise UPC: 029175012434 Volts: 12 Volts Part Description: 2012 GMC Sierra 2500 HD Alternator Remanufactured More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Notes: 6.6 Liter Diesel Location: Driver Side Other Names: Bracket, Support Bracket, Upper Bracket Item Dimensions: 5.9 x 3.3 x 2.1 inches Item Weight: 1.00 Pounds Fitment Type: Direct Replacement Replaces: 97212348 Part Description: 2012 GMC Sierra 2500 HD Upper Bracket More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | AT4, Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS $20.50 MSRP: $33.85
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: w/Delco Alt. Amps: 160 Amps Fan: Internal Manufacturer: Delco Pulley: 6 Groove Serpentine Regulator: Internal Rotation: Clockwise UPC: 029175090319 Volts: 12 Volts Part Description: 2012 GMC Sierra 2500 HD Alternator New More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | All Trims | 8 Cyl 6.0L VEHICLE SPECIFIC Product Specifications Other Names: Starter Item Dimensions: 7.3 x 6.3 x 12.4 inches Item Weight: 12.20 Pounds Fitment Type: Direct Replacement Replaced by: 12721722 Part Description: 2012 GMC Sierra 2500 HD Starter Asm More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL $202.39 MSRP: $410.70
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.0 Liter, Secondary Battery; 6.6 Liter Diesel, Secondary Battery Location: Driver Side Other Names: Battery Tray Item Dimensions: 18.7 x 13.4 x 12.5 inches Item Weight: 2.20 Pounds Fitment Type: Direct Replacement Replaces: 15947428, 15925342, 15892230, 15871114 Part Description: 2012 GMC Sierra 2500 HD Battery Tray More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL $25.31 MSRP: $41.91
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra; W/Diesel;Silverado, Sierra; W/O Diesel; 125 Amp; 6.0 Liter, 125 Amp; 6.6 Liter Diesel Location: Driver Side; Passenger Side Other Names: Alternator Item Dimensions: 10.3 x 9.0 x 8.7 inches Item Weight: 14.30 Pounds Fitment Type: Direct Replacement Replaces: 20911204, 22781128, 15204278 Part Description: 2012 GMC Sierra 2500 HD Alternator More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL $293.03 MSRP: $536.80
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Other Names: Fuse, Fusible Link, Maxi Fuse Item Dimensions: 1.2 x 1.2 x 0.6 inches Item Weight: 0.40 Pounds Fitment Type: Direct Replacement Replaced by: 22917202 Part Description: 2012 GMC Sierra 2500 HD Fuse, 30 A More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Base, Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL $4.66 MSRP: $7.38
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Jumper, 4.8, 5.3, 6.0 & 6.2; 6.0 Liter, Main Battery, Jumper Other Names: Battery Cable Item Dimensions: 4.1 x 11.7 x 11.6 inches Item Weight: 1.20 Pounds Fitment Type: Direct Replacement Replaces: 20858775 Part Description: 2012 GMC Sierra 2500 HD Battery Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $32.31 MSRP: $60.98
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Jumper, 4.8, 5.3, 6.0 & 6.2; 6.0 Liter, Main Battery, Jumper Other Names: Battery Cable Item Dimensions: 4.1 x 11.7 x 11.6 inches Item Weight: 1.20 Pounds Fitment Type: Direct Replacement Replaces: 20858775 Part Description: 2012 GMC Sierra 2500 HD Battery Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $32.31 MSRP: $60.98
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: 6.0 Liter, Secondary Battery; 6.6 Liter Diesel, Secondary Battery Location: Driver Side Other Names: Battery Tray Support, Support Item Dimensions: 9.4 x 2.2 x 12.6 inches Item Weight: 1.80 Pounds Fitment Type: Direct Replacement Replaces: 15705101 Part Description: 2012 GMC Sierra 2500 HD Battery Tray Support More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Base, Denali, SL, SLE, SLT, WT | 8 Cyl 6.0 L BI-FUEL, 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS, 8 Cyl 6.6 L DIESEL, 8 Cyl 8.1 L GAS $24.85 MSRP: $39.48
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra; 6.0l; 6.0 Liter, Main Battery, W/O Code: 9l4 Other Names: Negative Cable Item Dimensions: 14.2 x 13.3 x 3.7 inches Item Weight: 1.50 Pounds Fitment Type: Direct Replacement Replaces: 15826906, 20905414, 25878311 Part Description: 2012 GMC Sierra 2500 HD Negative Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $55.53 MSRP: $104.80
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra; 6.0l; 6.0 Liter, Main Battery, W/O Code: 9l4 Other Names: Negative Cable Item Dimensions: 14.2 x 13.3 x 3.7 inches Item Weight: 1.50 Pounds Fitment Type: Direct Replacement Replaces: 15826906, 20905414, 25878311 Part Description: 2012 GMC Sierra 2500 HD Negative Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.0 L CNG, 8 Cyl 6.0 L FLEX, 8 Cyl 6.0 L GAS $55.53 MSRP: $104.80
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Check Fit Add to CartVEHICLE SPECIFIC Product Specifications Notes: Silverado, Sierra; 6.6l; 6.6 Liter Diesel, Main Battery Other Names: Negative Cable Item Dimensions: 4.1 x 11.4 x 11.4 inches Item Weight: 2.20 Pounds Fitment Type: Direct Replacement Replaces: 20942921, 20995632 Part Description: 2012 GMC Sierra 2500 HD Negative Cable More Info Vehicle Fitment 2012 GMC Sierra 2500 HD | Denali, SLE, SLT, WT | 8 Cyl 6.6 L DIESEL $99.41 MSRP: $187.58
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