Alternator
Every car and truck has a battery in order to start the engine and power the vehicle electrical system, and needs a way to keep it charged. While a battery charger can be used, it requires remembering to plug it into an outlet and connect it to the vehicle battery for minutes or hours. However, an alternator allows you to keep the vehicle battery charged while you drive, using the engine. This component is belt-driven and creates an AC current that is converted to the required vehicle DC current through brushes, coils of wire, and a rectifier within the alternator housing. When the battery voltage is reached (for example 12.6-14 volts on a 12-volt battery), the alternator regulator stops the flow of power to the battery.
When an alternator repair or replacement is required for a factory stock application, the vehicle year, make, model, and engine needs to be confirmed for proper fitment and operation. For custom applications, the correct charging amperage needs to match the vehicle electrical system's needs and the alternator needs to have adapter brackets in order to properly bolt it to the engine and align it with the crankshaft pulley.
Available from JEGS is a large alternator selection from the best manufacturers available including Tuff Stuff, Powermaster, ACDelco, Denso, JEGS, and many more. Each alternator is manufactured from high-quality components and assembly for reliable charging performance.
- Single Groove V-Belt Pulley
- Fan without Baffle
- 3/8 in. W x 2.33 in. O.D. Single Groove V-Belt Pulley
- Fan
Proform 141-147 Slant-Edge Alternator with Raised Bowtie Emblem for Chevy Small Block, Big Block V8 Engines [Liquid Black]
- Single Groove V-Belt Pulley
- Fan without Baffle
- 6-Rib Serpentine Belt Pulley
- Cooling Fan
- 2 in. O.D. Single 6-Rib Serpentine Pulley
- Fan
- Single Groove V-Belt Pulley
- Fan
- (1) 2.700 in. Pulley
- 3/8 in. W x 2.330 in. O.D. Single Groove V-Belt Pulley
- Fan
JEGS
1-Wire Ford Alternator 140 Amp Output with Serpentine Belt Pulley [Chrome Plated Finish]
- Serpentine Belt Pulley
- Fan Without Baffle
- 2 in. O.D. Single 6-Rib Serpentine Pulley
Powermaster Ford PowerGEN Swing Mount Alternator for Select 1951-1965 Ford, Lincoln and Mercury Models [Black]
JEGS
Chrysler 1 Wire 100 Amp Alternator [Double Groove V-Belt Pulley, Chrome Plated Finish]
- Double Groove V-Belt Pulley