12v 120a auto alternator

Types of 12v 120a auto alternator

Auto alternators are used in different vehicles to provide power to electrical components and charge batteries. A 12v alternator is specifically designed to produce 12 volts of electrical power. It is mostly used in cars with a 12v battery system. The 12v120a auto alternator is an alternator that produces 120 amps of current at 12 volts. There are different types of 12v 120a auto alternators, depending on the construction and the application. Here are some of them:

• Internal and External Regulation

  Some alternators have a regulator that is located outside of the alternator. This is called the external regulator. On the other hand, internal regulation happens within the alternator.

• Single and Three Phase

  Single-phase alternators produce a single-phase electrical output. Most small-scale applications use this type of alternator. On the other hand, three-phase alternators produce a three-phase electrical output, which provides a stable and high-power output. This makes them suitable for large-scale applications.

• Salvage vs Re-manufactured

  Re-manufactured alternators are refurbished to restore their original function. All worn-out parts are replaced, and the alternator is cleaned and tested. On the other hand, a 12v120a auto alternator from clean salvage is collected from a running vehicle that is still functional. No refurbishing or cleaning has been done to the alternator.

• Rotation

  Some alternators are designed for clockwise rotation, while others are counterclockwise. The rotation of the pulley is determined by the direction of the belt that drives the alternator.

• Case Size and Style

  12v120a auto alternators are designed in different case sizes and styles depending on the manufacturer. This affects the compatibility of the alternator to a specific vehicle.

• Cooling System

  12v120a auto alternators have different cooling systems depending on the design and construction. Some have a cooling fan that helps to cool the alternator by forcing air through it. Others have a cooling duct that allows airflow through the alternator.

Specification & Maintenance of 12v 120a auto alternator

These are the specifications of the 12v 120a auto alternator:

• Output Current

  The output current is 120 amps, meaning that the alternator can produce a maximum of 120 amps of current. This current is used to charge the car battery and power the electrical accessories.

• Voltage Output

  The voltage output of the alternator is 12 volts. This voltage is used to power the electrical systems in the car, such as the lights, radio, and air conditioning. The 12-volt output is constant, ensuring that the electrical systems receive a steady voltage.

• Frequency

  The frequency of the alternator is 0 Hz. This is because it does not produce any alternating current.

• Cooling Method

  The 12v 120 amp alternator uses air to cool it. This is done by airflow over the alternator, which helps to dissipate heat.

• Mounting

  The 12v 120 amp alternator is mounted using 3 bolts. This helps keep it in place and ensures that it does not move or vibrate.

• Rotation Direction

  The alternator rotates in a clockwise direction. This is important for the belt drive system, ensuring that the alternator is driven in the correct direction.

• Case Material

  The 12v 120a alternator case is made of aluminum. This is a lightweight material that helps reduce the overall weight of the alternator. Aluminum is also resistant to corrosion, which helps to prolong the life of the alternator.

• Terminal Type

  The alternator has a ring terminal. This is used to connect the alternator to the electrical system in the car.

• Dimensions

  The 12v 120a alternator has the following dimensions:

  Length: 11.42 inches (290 mm)

  Width: 5.79 inches (147 mm)

  Height: 5.91 inches (150 mm)

• Weight

  The 12v 120a alternator weighs 8.48 lbs (3.85 kg). This is a lightweight, making it easy to install and reducing the overall weight of the car.

Here are some tips for maintaining the 12v 120 auto alternator:

• 1. The alternator should be checked regularly for wear and damage. This includes inspecting the bearings, housing, and rotor for any signs of wear or damage. If any is found, they should be replaced as soon as possible to keep the alternator running optimally.
• 2. The alternator belt should also be inspected regularly. The belt should be checked for cracks, fraying, and wear. If any damage is found, the belt should be replaced. The belt tension should also be checked and adjusted as needed.
• 3. The alternator should be cleaned regularly to remove any dirt or debris that may have built up. This can be done using a soft brush and mild detergent. Care should be taken not to damage any of the alternator's components during cleaning.
• 4. The alternator's electrical connections should be inspected regularly to ensure they are clean and secure. Loose or corroded connections can cause the alternator not to charge properly.
• 5. Following the manufacturer's recommended maintenance schedule for the alternator is essential. This will ensure that it receives the necessary maintenance and care to keep it running smoothly.

How to choose 12V 120A auto alternator

Wholesale buyers should consider the following factors when buying 12v 120a auto alternators.

• Output capacity

  Even though the alternators are all rated 120A, some might have higher output. The output current of an alternator isn't constant. It depends on the engine speed. At 2,000 rpm, the output of many alternators is 140A or more. Buyers should check the output curve of the alternator to ensure it meets the needs of high-beam customers.

• Dimensions and weight

  Car manufacturers specify the dimensions and weight of the original alternator used in the vehicle. Buyers should ensure that the 12v 120a alternator fits into the mounting space and the cooling system can handle the extra heat generated by a larger alternator.

• Installation

  Some alternators come with installation instructions. It is advisable to choose those with installation guides. Many retailers offer DIY alternator replacement. The installation process is easier if the guide is available. Furthermore, the guide may contain important maintenance tips.

• Battery compatibility

  Most of the 12v 120a alternators are compatible with lead-acid batteries. Buyers should check whether the alternator is compatible with lithium batteries or other modern battery technologies. Lithium batteries require a special charging profile. They have a higher discharge and charge rate than lead-acid batteries.

• Warranty

  Buyers should pay attention to the warranty period. Suppliers offering longer warranty periods are confident retailers will sell quality alternators. Buyers should also check the terms of the warranty. They should be able to meet the warranty conditions when claiming a faulty product.

• Reviews

  Buyers should read customer reviews to see the experience of end users. The reviews will inform them of the reliability of the alternator and the customer service of the supplier.

How to DIY and Replace 12V 120A Auto Alternator

It is important to know how to replace a 12v 120a auto alternator. This is because, in the long run, it will save both time and money. Several tools are needed before the process can take place. These tools include safety goggles, a socket set, a multimeter, a ratchet, a belt tensioner tool, and an adjustable wrench. With these tools, the process becomes easy. Below is a step-by-step guide on how to replace 12v 120a auto alternators:

• 1. First and foremost, ensure the proper safety measures are put in place. This includes making sure the car is turned off, the parking brake is set, and the alternator is discharged.
• 2. The next step is to locate the alternator. This is done by opening the car's hood and removing the engine cover. After this step, the next thing to do is to loosen the belt that is used to drive the alternator.
• 3. The next step after loosening the driving belt is to disconnect the electrical connections to the alternator. This is done by using a socket set to remove the bolts that hold the alternator in place.
• 4. After removing the bolts, lift the alternator out of the engine and place the new one in the same spot. Then, reattach the bolts and electrical connections.
• 5. The last step is to tension the drive belt.

Q and A

Q1: What is a 12v 120a auto alternator?

A1: The 12v 120a auto alternator can be termed as a car generator. It is a electrical device that produces alternating current. The alternator is used to charge the battery and power electrical devices when the engine is running. Basically, it keeps the car's electrical system running. It is rated 120 amps, meaning it can supply up to 120 amps of current to the electrical system. It is also a 12 volt alternator, so it provides a 12 volt output. This alternator is commonly used in most cars and is a standard auto alternator.

Q2: What are the benefits of a 12v 120a auto alternator?

A2: The 12v 120 amp alternator has several advantages. First, it keeps the car's electrical system running, which is very important. The electrical system includes important components like the battery and power supply. Secondly, it is a standard auto alternator that can be used in most cars. This means that it is not special and can be used by many people. Third, the 120 amp output is great for charging batteries and powering electrical devices. It is a powerful auto alternator.

Q3: How does a 12v 120 amp alternator work?

A3: The 12v 120 amp alternator works like any other car alternator. It is very easy and simple to understand how it works. The alternator has a rotor with windings that spins inside a stator. The rotor is spun by the belt drive from the engine's crankshaft. When the engine is running, the rotor spins inside the stator, which is what generates the alternating current.

Q4: Can a 12v 120a auto alternator be used on any vehicle?

A4: Yes, in principle, a 12v 120a auto alternator can be used on any vehicle. However, it is auto designed for use in cars and not vehicles like trucks. For larger vehicles, a more powerful alternator is needed to support the electrical system.

Q5: What is the warranty period for a 12v 120a auto alternator?

A5: The 12v 120a auto alternator's warranty period differs from the supplier's to the manufacturer's. Some offer one-year auto alternator warranty, while others offer two years or more. Also, some suppliers offer 6 months or one-year auto alternator repair services.