Parts for Generac 5939-4: Main Sub Assy Parts

This fuel filter keeps dirt and foreign objects out of the fuel system of Generac generators. Fuel, particularly when stored in portable fuel tanks, is prone to getting dirt and debris in it. Before using it in a generator or other piece of equipment, the debris needs to be removed. If the dirt and debris are not removed from the fuel, it can enter the fuel system and cause damage. The fuel filter prevents this from happening.Fuel filters need to be examined and replaced as part of routine maintenance. A visual inspection will show if the filter is dirty or not. If dirty, the filter is easily removed with a pair of pliers. The new filter can be put into place using your hands. The process normally takes less than twenty minutes. All dirt and contaminating particles are not visible to the naked eye. The fuel filter should be replaced according to a scheduled maintenance plan, regardless of visible dirt and debris. This OEM fuel filter comes directly from the manufacturer and is used in Generac portable generators. The overall part is made of plastic and contains a mesh filter. It is sold individually.

A fuel valve shut-off is an important piece that impacts the flow of fuel to the engine. It is designed specifically to be compatible with portable generators by the Generac brand.The fuel valve shut-off part is crucial because it manipulates the flow of oil. The purpose of the fuel valve shut-off is to attach to the fuel tank, and then it either allows fuel to pass to the engine, or it prevents the flow of fuel if the level is too low or if there is another problem. The replacement or repair process of the fuel valve shut-off should be straightforward, but the user replacing the part should always be sure to wear gloves during any assembly, replacement, or installation processes. The user should also refer to the owner's manual of their equipment and any guiding diagrams that clarify the placement location.This fuel valve shut-off is made out of metal and plastic. This fuel valve shut-off is an original OEM part sourced directly from the manufacturer, Generac. It is sold individually.

This part is a 12-volt battery used on portable generators. The purpose of a battery is to provide the current needed to start the portable generator.A new 12-volt battery may be needed if the battery is dead and cannot be jump-started. Over time, batteries become weaker and need to be replaced after normal wear and tear over a period of time. If the portable generator will not turn on, it could be a result of a battery that has died or gone completely bad. Remember to wear gloves when operating or performing care and maintenance on any outdoor power equipment. Use extreme care when handling a battery.This 12-volt battery is a genuine Husqvarna part. It is sold individually. This particular 12-volt battery is compatible with outdoor power equipment that are manufactured by the Husqvarna brand and the Generac brand.

This is an automatic voltage regulator that is used on many generators. Depending on the model of the generator, it can be located in the main control box, under the alternator rear cover, or in the alternator terminal box. It senses the voltage from the generator terminals and compares it to a stable reference. This is used to adjust the flow to the right level. If the automatic voltage regulator is damaged, the generator will experience a loss of voltage that causes the machine to shut down.A malfunctioning automatic voltage regulator will need to be replaced. If it isn't, the generator may not run. If it does run, it can cause serious damage to the generator. Test the main circuit breaker before testing the wiring. Next, adjust the automatic voltage regulator. If this doesn't help, check the rotor brushes. If the generator is still not working correctly, the automatic voltage regulator should be replaced. Make sure to turn it off and unplug it before doing so.This is a genuine OEM replacement part that is directly sourced from the manufacturer. The automatic voltage regulator is sold on an individual basis. The component is made for use with several generators manufactured by Generac.

This part is a replacement brush holder. It is intended to repair a defective or broken brush holder in generators.This part is intended to hold the carbon brushes and ensure that they are not easily lost or detached. This brush holder should be replaced if the current one is broken, cracked, detached, or otherwise rendered ineffective. Wear work gloves to protect the hands and check that equipment is powered off and cooled down before starting the repair process.This brush holder is a genuine OEM part from Generac made of durable materials and is sold individually. It is suitable for use with generator models that have been manufactured by Generac, Siemens, Honeywell, and some other brands.

This replacement charging jack is designed for a generator. The charging jack allows the user to charge components connected to the jack. While the jack does not include moving parts, it can suffer from internal failures. The most common problems include damage or corrosion to the jack itself, as well as damage to the connector terminals or to the wires themselves. If the charging jack is not working, it will likely need to be replaced.To replace the charging jack, users will need to disconnect the spark plug, and then access the interior of the generator. Disconnect the two wire connectors that connect the jack to the rest of the wiring harness. Next, unscrew the housing of the jack and then pull the entire jack connector free of the generator. Install the new charging jack by reversing these steps. This genuine OEM replacement part is sold individually. It fits certain Generac generator models.