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Alternators: Giving Your Car the Volts it Needs

Your vehicle’s charging and starting system is a complex web of sensors, regulators, storage systems, and generators. Some of the key components in this system that keep it operating at peak performance include the starter, voltage regulators, alternator, and battery.

The alternator plays a big role in the vehicle’s charging system. Your battery requires approximately a 12-volt charge to start the vehicle and aid in running the various accessories. Without a constant slow charge, the battery would likely die within minutes. The alternator prevents this by delivering 13.5 to 14.5 volts to the electrical system while the engine runs. This allows the various electrical components to operate while the battery uses the excess voltage to recharge.

Because the alternator plays a crucial role in your starting and charging system, immediately replacing a weak or failed alternator is essential. But not all alternators are equal. You’ll want to ensure it lasts a long time by purchasing a high-quality replacement part.

Get Genuine Replacement Alternators at AutoNation Parts

If your vehicle struggles to start, you may need a new alternator. Fortunately, AutoNation Parts can help with a huge selection of high-quality alternators for various makes and models. You can order ours online right from home and have it shipped to your front door.

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84169187 - : Alternator for GM Image

Alternator

GM 84169187
Canyon, Colorado. 2.8l diesel. 2.8L turbo diesel. Stamped #84169187. Newly manufactured as an exact replacement for your GM vehicle's...
$271.05
MSRP $432.83
Save $161.78
37.4% Off
View Details
13555110 - : Alternator for GM Image

Alternator

GM 13555110
Camaro. 3.6l eng. (lgx).
$264.50
MSRP $430.97
Save $166.47
38.6% Off
View Details
42609203 - : Alternator for GM Image

Alternator

GM 42609203
Spark. Alternator.
$325.76
MSRP $521.21
Save $195.45
37.5% Off
View Details
84331735 - : Alternator for GM Image

Alternator

GM 84331735
Express, savana. All. 4.8l. 150 amp. All. 6.0l. 150 amp. 2.8L, 150 amp. Newly manufactured as an exact replacement for your GM vehicle's...
$281.83
MSRP $450.03
Save $168.20
37.4% Off
View Details
13561045 - : Alternator for GM Image

Alternator

GM 13561045
Silverado, Sierra 2500 HD. Gas. Diesel. Main. Silverado, Sierra 3500 HD. 220 Amp.
$283.18
MSRP $453.08
Save $169.90
37.5% Off
13532106 - : Alternator for GM Image

Alternator

GM 13532106
Newly manufactured as an exact replacement for your GM vehicle's original alternator This GM Genuine Part is designed, engineered, and...
$242.30
MSRP $387.68
Save $145.38
37.5% Off
View Details
13553564 - : Alternator for GM Image

Alternator

GM 13553564
Colorado. 2.7l. 170a. Canyon. 2.7l. 170a.
$225.13
MSRP $360.20
Save $135.07
37.5% Off
View Details
42869304 - : Alternator for GM Image

Alternator

GM 42869304
Trax. 1.2l. Envista. 1.2l.
$985.75
MSRP $1,383.51
Save $397.76
28.8% Off
View Details
84143541 - : Alternator for GM Image

Alternator

GM 84143541
Silverado, sierra. With diesel. 220 amp. Single. Newly manufactured as an exact replacement for your GM vehicle's original alternator...
$433.92
MSRP $707.04
Save $273.12
38.6% Off
View Details
13552648 - : Alternator for GM Image

Alternator

GM 13552648
Silverado, Sierra 2500 HD. Gas. Single generator. 170 amp. Silverado, Sierra 3500 HD.
$213.85
MSRP $342.16
Save $128.31
37.5% Off
View Details
84009357 - : Alternator for GM Image

Alternator

GM 84009357
Impala, Monte Carlo. 3.5l, 3.9l. 150 amp. Newly manufactured as an exact replacement for your GM vehicle's original alternator This GM...
$504.61
MSRP $807.39
Save $302.78
37.5% Off
View Details
22888109 - : Alternator for GM Image

Alternator

GM 22888109
Camaro. 3.6l. 3.6L, 2nd design. Newly manufactured as an exact replacement for your GM vehicle's original alternator This GM Genuine Part...
$462.45
MSRP $718.35
Save $255.90
35.6% Off
View Details
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