Shop Discount Alternators

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An alternator is a fairly simple device that is used to generate electricity while your car is running. This electricity is vital to the operation of your vehicle, and therefore the alternator must be kept in good shape in order to maintain good power and fuel economy. The alternator is attached to the engine by a belt which also rotates other accessories such as the air conditioner compressor or the power steering. Alternators are generally constructed out of a non-magnetic metal such as aluminum, and often have holes or cooling slats cut into them in order to avoid overheating while the electricity is generated. Inside the alternator casing is a rotor shaft containing an electromagnet, and this rotor spins inside of a circular device called a stator. Sometimes at the ends of the rotor small brushes can be found, which provide electrical charge to the electromagnetic shaft from the battery. Electric current is generated when the charged rotor shaft spins, moving past wire coils that are wrapped all around the stator. The magnetic field of the rotating magnet stimulates a current in the stator, and this current is then transmitted through diodes out to the rest of the vehicle. The charge in the alternator is controller by the regulator, which controls the amount of power to the electromagnetic rotor. Like all moving parts, alternators eventually wear out. They can also suffer from internal component failure due to overheating. It is not uncommon to see the regulator cease functioning, causing an overcharge or an undercharge situation. The bearing that keeps the rotor spinning inside the alternator can also fail.

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    ACDelco
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Best Selling Genuine Replacement Alternators

  • Constantly Updated Inventory of Replacement Alternator Parts
  • We stock Discount Alternator OEM Parts

We stock Alternator parts for most makes, including AM General, Acura, Audi, Austin, BMW, Buick, Cadillac, Chevrolet, Chrysler, Daewoo, Daihatsu, Dodge, Eagle, Fiat, Ford, Freightliner, GMC, Geo, Honda, Hummer, Hyundai, Infiniti, International, Isuzu, Jaguar, Jeep, Kenworth, Kia, Land Rover, Lexus, Lincoln, MG, Mack, Mazda, Mercedes Benz, Mercury, Merkur, Mini, Mitsubishi, Nissan, Oldsmobile, Peugeot, Plymouth, Pontiac, Porsche, Ram, Renault, Saab, Saturn, Scion, Smart, Sterling, Sterling Truck, Subaru, Suzuki, Toyota, Triumph, Volkswagen, Volvo, Western Star.


ACDelco
2007 GMC Sierra 2500 HD Alternator ACDelco

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; 105 Amp
Brand: ACDelco
Additional Fitment Information:
Vehicle
2007 - GMC Sierra 2500 HD
ACDelco
2004 Chevrolet Express 3500 Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; 105 Amp
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Chevrolet Express 3500
ACDelco
2004 Chevrolet Tahoe Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; with 105 Amp Alternator (RPO K68)
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Chevrolet Tahoe
ACDelco
2003 Chevrolet Suburban 1500 Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; 105 Amp (RPO K68)

    with 15755616 Stamped on Alternator
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2003 - Chevrolet Suburban 1500
ACDelco
2004 Chevrolet Silverado 1500 Alternator ACDelco

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; 105 Amp (RPO K68)
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Chevrolet Silverado 1500
ACDelco
2004 Chevrolet Avalanche 1500 Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; 105 Amp (RPO K68)
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Chevrolet Avalanche 1500
ACDelco
2003 GMC Savana 3500 Alternator ACDelco

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; 105 Amp - Remanufactured
Brand: ACDelco
Additional Fitment Information:
Vehicle
2003 - GMC Savana 3500
ACDelco
2004 Chevrolet Silverado 3500 Alternator ACDelco

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; with 105 Amp (RPO K65 or K68)
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Chevrolet Silverado 3500
ACDelco
2004 Chevrolet Silverado 3500 Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; with 105 Amp (RPO K65 or K68)
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Chevrolet Silverado 3500
ACDelco
2004 Cadillac Escalade ESV Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; with 105 Amp Alternator (RPO K68 or RPO K65 or RPO 8X5)
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2004 - Cadillac Escalade ESV
ACDelco
2007 GMC Sierra 2500 HD Classic Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; with 105 Amp and with JD Stamped
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2007 - GMC Sierra 2500 HD Classic
ACDelco
2003 Chevrolet Express 1500 Alternator ACDelco - New

P311-0AC2991    W0133-1965462  New

Qty:
450.34
ACDelco Alternator
  • Gold (Professional)
  • ; with 105 Amp Alternator
  • New
Brand: ACDelco
Additional Fitment Information:
Vehicle
2003 - Chevrolet Express 1500
ACDelco
2005 GMC Envoy XL Alternator 8 Cyl 5.3L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2005 - GMC Envoy XL V 8 Cyl 5.3L 325 5328
ACDelco
2003 Cadillac Escalade Alternator ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; with 145 Amp Alternator (RPO KG3)
    -Remanufactured
Brand: ACDelco
Additional Fitment Information:
Vehicle
2003 - Cadillac Escalade
ACDelco
2010 GMC Savana 3500 Alternator 8 Cyl 6.6L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; with Dual Alternators
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2010 - GMC Savana 3500 V 8 Cyl 6.6L 403 6599
ACDelco
2009 GMC Savana 2500 Alternator 8 Cyl 6.6L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; with Single Alternator
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2009 - GMC Savana 2500 V 8 Cyl 6.6L 403 6599
ACDelco
2011 GMC Savana 2500 Alternator 8 Cyl 6.6L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; Single Alternator, 145 Amp.
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2011 - GMC Savana 2500 V 8 Cyl 6.6L 403 6599
ACDelco
2011 GMC Savana 2500 Alternator 8 Cyl 6.6L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; Dual Alternator, 145 Amp.
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2011 - GMC Savana 2500 V 8 Cyl 6.6L 403 6599
ACDelco
2012 GMC Savana 4500 Alternator 8 Cyl 6.6L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; Dual Alternators, 145 Amp.
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2012 - GMC Savana 4500 V 8 Cyl 6.6L 403 6599
ACDelco
2016 Chevrolet Express 2500 Alternator 8 Cyl 6.6L ACDelco

P311-51E8D6B    W0133-1968516  New

Qty:
$55.00 520.30
ACDelco Alternator
  • This Original Equipment Manufacturer part is the same part that was made & installed by the car manufacturer at the factory where the car was produced.
  • Genuine GM Remanufactured
  • ; with 145 Amp (RPO KG3)
Brand: ACDelco
Additional Fitment Information:
Vehicle Block Engine CID CC
2016 - Chevrolet Express 2500 V 8 Cyl 6.6L 403 6599