Shop Pontiac Alternator At PartsAvatar

We help you to maintain your dream Pontiac new as ever with high quality Pontiac repair and replacement parts. While there are many online auto parts websites, but we guarantee you the best quality Pontiac parts online at the most genuine prices. We have all Pontiac parts ranging from replacement auto parts, Pontiac Shocks and Strut assembly, body parts for Pontiac vehicles to Pontiac headlights to help you select the components you are looking for. That is not all we offer you FREE shipping on your orders if your order value happens to be over $75. We provide you doorstep delivery anywhere across Canada. You can place your orders on our secure site using PayPal, credit cards or even order parts by telephone.

About Alternator

The charging device transforms mechanical energy into electrical energy to provide the current required to recharge the battery and power the electrical accessories of the vehicle while the engine is running. The alternator is also called the AC generator. Mechanical energy from the engine crankshaft is transferred from the crankshaft pulley to the alternator pulley, which is connected to the engine with brackets. A standard alternator has a two-piece aluminum cast housing with a stator and a shaft-mounted rotor. The pulley and the cooling fan are located on the shaft at the front of the drive end casing, which also has a bearing to stabilize the shaft. In addition to the other support bearing of the shaft, the rear housing also includes the brushes, rectifier assembly, and a voltage regulator. The rectifier assembly comprises diodes and heat sinks.

The belt around the alternator spins the rotor and the windings of the stator, producing a magnetic field that induces a voltage in the windings. Alternators produce AC current, which is converted by the diodes and converted into a DC current which recharges the battery and powers the electrical system. The voltage output of the alternator is regulated to prevent undercharging or overcharging. This is achieved by adjusting the current field. Older vehicles used an internal or external voltage regulator whereas modern vehicles use a Powertrain Control Module (PCM). During deceleration, the rotating alternator produces drag, straining the serpentine belt and tensioner. Some manufacturers use alternator decoupler pulleys that allow the alternator to freewheel during deceleration, reduce strain, and increase the lifetime of the belt and tensioner. For this, One-Way Clutch (OWC) and Overrunning Alternator Decoupler (OAD) pulleys are used.