Alternator

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Duralast Gold New Alternator DLG7758-6-2
$
186
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG7758-6-2
  • SKU # 352092
  • Application: With 2 groove pulley
    Notes: 95 Amp. Pulley change may be required Cummins. Ford 3G Equipped. 2:00 alternator Plug. Designed for maximum durability 100% new
$
186
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG2229-16-1
$
242
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG2229-16-1
  • SKU # 209343
$
242
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG7760-6-11
$
201
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG7760-6-11
  • SKU # 352093
$
201
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG1652-16-5
$
171
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG1652-16-5
  • SKU # 352097
  • Notes: 105 Amp. Designed for maximum durability 100% new
$
171
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator ADLG3416-16-2
$
169
99
+$40.00 Refundable Core Depositinfo
  • Part # ADLG3416-16-2
  • SKU # 209349
  • Notes: 130 amp. Designed for maximum durability 100% new
$
169
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG2320-16-11
$
212
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG2320-16-11
  • SKU # 209344
$
212
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG7127M
$
89
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG7127M
  • SKU # 352098
$
89
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG3513-16-2
$
227
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG3513-16-2
  • SKU # 120158
$
227
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG1701-16-3
$
204
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG1701-16-3
  • SKU # 532316
  • Application: With 137mm (5 3/8") diameter alternator case
    Notes: 105 Amp. Remy Equipped. Designed for maximum durability 100% new
$
204
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG3425-16-2
$
201
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG3425-16-2
  • SKU # 234758
$
201
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG5503-5
$
161
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG5503-5
  • SKU # 120186
  • Notes: 90 Amp. With 125mm (4 15/16") Diameter alternator Case. Available until stock is depleted. Designed for maximum durability 100% new
$
161
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG3407-16-1
$
212
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG3407-16-1
  • SKU # 532322
  • Application: Base, LX or S model
    Notes: 130 amp. Designed for maximum durability 100% new
$
212
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG2659-6-11
$
422
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG2659-6-11
  • SKU # 454756
  • Notes: 110 Amp. Designed for maximum durability 100% new
$
422
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG3501-18-10
$
219
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG3501-18-10
  • SKU # 209351
  • Application: With 8 groove pulley, With battery post extension
    Notes: 95 amp. Without A/C. With 8 Groove pulley. With battery post extension. Designed for maximum durability 100% new
$
219
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG1468-16-4
$
165
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG1468-16-4
  • SKU # 740988
  • Application: With External Alternator Fan
    Notes: 140 amp. Designed for maximum durability 100% new
$
165
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG1404-6-10
$
189
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG1404-6-10
  • SKU # 607415
$
189
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG1622-16-3
$
194
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG1622-16-3
  • SKU # 352094
$
194
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG5595-6-11
$
295
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG5595-6-11
  • SKU # 470951
  • Notes: 135 amp. Designed for maximum durability 100% new
$
295
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG5533-15-3
$
231
99
  • Part # DLG5533-15-3
  • SKU # 287196
$
231
99
Duralast Gold New Alternator DLG1906-16-4
$
202
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG1906-16-4
  • SKU # 108713
  • Application: Remy equipped
    Notes: 145 amp. Designed for maximum durability 100% new
$
202
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG3659-8-2
$
226
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG3659-8-2
  • SKU # 955077
$
226
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG2642-8-10
$
306
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG2642-8-10
  • SKU # 146407
  • Application: Denso equipped
    Notes: 160 Amp. Without High Output. Designed for maximum durability 100% new
$
306
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG2207-16-2
$
225
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG2207-16-2
  • SKU # 224305
  • Application: Bosch equipped
    Notes: 160 Amp. With 11:00 alternator Plug. Designed for maximum durability 100% new
$
225
99
+$40.00 Refundable Core Depositinfo
Duralast Gold New Alternator DLG3512-18-10
$
178
99
+$40.00 Refundable Core Depositinfo
  • Part # DLG3512-18-10
  • SKU # 616387
  • Application: With 8 groove pulley
    Notes: 130 amp. With 8 groove pulley. Without battery post extension. Designed for maximum durability 100% new
$
178
99
+$40.00 Refundable Core Depositinfo

About

Alternator

You may be wondering, "What is an alternator?" Many car owners believe that the car abattery powers electric energy to your car. However, the battery only provides power to make the starter motor crank and start the engine. The alternator of your car's engine creates the power to not only run the car, but it also generates power for other components of your car. The alternator also charges your car battery since the vehicle requires a lot of power. Without an alternator, your car's battery will quickly run out of charge.

How Do Alternators Work?
Exactly how do alternators work? Since alternators convert mechanical energy to electric energy, you need to understand how they work. The alternator of your car is mounted on the block with either a bracket or with bolts. To create the required levels of electric energy, the alternator must be rotated. A rubber belt connects the alternator to the engine crank pulley. As the engine rotates, the belt turns the rotor found in the stator. The rotor and stator are made from copper and electric steel. The rotor also has an electric current flowing through it, which induces a magnetic field.

The magnetic field results in an electric current in the stator that winds the alternator. The current, in the form of AC, needs to be changed into DC. Diodes are used to create the DC voltage.



Signs of a Bad Alternator
If the alternator of your car is bad, you will notice a reduction in your car's performance. Signs of a bad alternator include dim or flickering headlights or interior dash lights, the check engine light, a dead battery, or other electrical issues. The engine can even stall while driving. If you’re experiencing any of these issues, you can open the hood to visually inspect the alternator for common problems or bring it in to AutoZone for testing.

Importance of Replacing Worn Alternators
Since being introduced to production cars with the 1960 Plymouth Valiant, the alternator has become one of the most important auto parts in modern cars. Without an alternator, your vehicle has no way to charge the battery. The alternator, driven by the crankshaft, generates AC power through electromagnetism. Electricity is channeled into the battery where it can provide the current needed to start the vehicle, or to run electronics like headlights or the radio. The alternator outputs between 13.5 and 14.8 volts to keep the battery 100% charged.

In addition to starting trouble, a worn alternator can impair the overall driving experience. Without enough current from the alternator, the battery can die even while you are driving.

The alternator is an essential part of your vehicle's electrical system. You need to check the components of this critical part for any damage. If you suspect the alternator is worn out, do not hesitate to contact AutoZone.