If you’re looking for the best Generac 24kW standby generators for 2025, I recommend models that offer reliable power, advanced features like Wi-Fi monitoring, and flexible fuel options like natural gas or propane. They’re designed for easy installation, durable construction, and seamless backup during outages. Keep in mind, choosing the right accessories and maintenance kits can extend your generator’s lifespan. Stay with me to discover top options that’ll keep your home running smoothly.
Key Takeaways
- Consider models with True Power Technology for clean, stable electricity and advanced safety features for reliable home backup.
- Prioritize units with cellular connectivity and remote monitoring options for proactive maintenance and outage alerts.
- Ensure compatibility with your fuel source (natural gas or propane) and capacity needs for whole-house power.
- Look for models with durable construction, large oil filters, and easy maintenance kits to ensure long-term reliability.
- Check for proper installation support, transfer switch compatibility, and local regulations to maximize system performance in 2025.
Generac Guardian 24kW Home Standby Generator

If you’re looking for a reliable home backup power system, the Generac Guardian 24kW Standby Generator is an excellent choice, especially for those who want automatic, whole-house coverage during outages. It runs on natural gas or propane, delivering 24,000 watts with True Power Technology for clean, stable power. Its G-Force 1000 Series engine handles rigorous use, ensuring reliability and quiet operation. Featuring a 200 Amp transfer switch and Wi-Fi connectivity with Mobile Link, monitoring is easy. Designed for straightforward installation and minimal maintenance, it’s built in the USA. Customers praise its quick startup, smooth operation, and peace of mind during storms and emergencies.
Best For: homeowners seeking reliable, automatic whole-house backup power during outages with easy remote monitoring and minimal maintenance.
Pros:
- Quick startup and smooth operation during power outages
- Reliable G-Force 1000 Series engine and True Power Technology for clean, stable power
- Wi-Fi enabled with Mobile Link for convenient remote monitoring
Cons:
- Dependence on onboard electronics and Wi-Fi may pose vulnerability to EMP or lightning events
- Delivery delays and shipping packaging issues reported by some customers
- Additional costs for accessories like filters, surge protectors, and transfer switches for full-house coverage
Generac 5W-20 Maintenance Kit for 20Kw-26Kw Generators

The Generac 5W-20 Maintenance Kit is an essential choice for owners of 20Kw-26Kw generators who want to keep their equipment running smoothly. This kit includes OEM air and oil filters, two spark plugs, two quarts of full synthetic SAE 5W-20 oil, a funnel, a towel, and a maintenance minder, all designed for easy DIY maintenance. Compatible with specific Generac models, it offers high-quality components that fit well and perform reliably. Customers praise its thorough contents, ease of use, and good value. Regular use of this kit helps ensure your generator remains dependable, efficient, and ready when you need it most.
Best For: DIY generator owners seeking a comprehensive, easy-to-use maintenance kit to ensure their 20Kw-26Kw Generac generator runs reliably and efficiently.
Pros:
- Includes OEM-quality filters, spark plugs, and synthetic oil for optimal performance
- Complete kit with tools and accessories for convenient maintenance
- Highly rated (4.8/5 stars) with positive customer feedback on fitment and value
Cons:
- Minor packaging issues reported, such as spark plugs bouncing in the box
- Price may vary, and some users may find it slightly higher than individual parts
- Requires basic knowledge or tutorials for proper installation and maintenance
Generac Scheduled Maintenance Kit for 20kW and 22kW Standby Generators

For homeowners with 20kW or 22kW Generac standby generators, the Generac 6485 Maintenance Kit offers a straightforward solution to keep your system running smoothly. It includes essential parts like air and oil filters, spark plugs, a pre-cleaner, and cleaning supplies, all designed for routine maintenance. This kit supports peak performance and longevity when used every 200 hours or two years. While oil needs to be purchased separately, the kit makes DIY servicing easier and more affordable. Regular maintenance with this kit ensures your generator remains reliable during power outages, giving you peace of mind when it matters most.
Best For: homeowners with 20kW or 22kW Generac standby generators seeking an affordable, comprehensive DIY maintenance solution to ensure reliable performance during outages.
Pros:
- Includes all essential maintenance parts like filters and spark plugs for easy DIY servicing
- Cost-effective alternative to dealer service with genuine Generac parts
- Supports optimal generator performance when used regularly every 200 hours or two years
Cons:
- Oil must be purchased separately, adding to the overall maintenance cost
- Requires basic tools and some mechanical knowledge for proper installation
- Not suitable for generators outside the specified models and wattages
6485 Maintenance Kit for Generac Air Cooled Generators

When maintaining your Generac air-cooled generator, the 6485 Maintenance Kit stands out as an essential component for guaranteeing reliable performance. It’s compatible with most 16-26 kW models from 2013 onward, supporting a broad range of engine types. The kit includes an oil filter, air filter, and two spark plugs—key parts for routine upkeep. Regularly replacing these components every 200 hours or two years helps keep your generator running smoothly and extends its lifespan. Plus, with responsive customer support and a satisfaction guarantee, you can trust this kit to simplify maintenance and ensure your home stays powered during outages.
Best For: homeowners with 16-26 kW Generac air-cooled generators from 2013 onward seeking an reliable, all-in-one maintenance solution.
Pros:
- Includes essential filters and spark plugs for comprehensive routine maintenance
- Compatible with a wide range of Generac models from 2013 or later
- Supports optimal generator performance and longevity with regular use
Cons:
- May require technical knowledge for proper installation and replacement
- Only suitable for specific generator models with 999cc engines
- Does not include other maintenance parts like belts or batteries
Generac 18kW Home Standby Generator

If you’re seeking a reliable backup solution that seamlessly powers your entire home during outages, the Generac 18kW Home Standby Generator stands out. It connects directly to your existing LP or natural gas supply and starts within seconds of a power loss, running until utility power is restored. Designed for residential use, it can support essential circuits or your whole house. Features like cellular connectivity for remote monitoring, automatic idle control, dual fuel capability, and quiet operation make it user-friendly and efficient. Built from stainless steel and weighing 426 pounds, it’s a durable, cost-effective choice for long-term home backup power.
Best For: homeowners seeking a reliable, whole-house backup generator with smart monitoring capabilities and seamless automatic operation during power outages.
Pros:
- Automatic start within seconds of power loss ensures continuous power supply
- Compatible with existing LP or natural gas, making installation flexible and convenient
- Features cellular connectivity for remote monitoring and maintenance alerts
Cons:
- Heavier and larger in size, which may require dedicated installation space
- Premium features like cellular connectivity require a subscription for remote monitoring
- Higher upfront cost compared to portable generators or smaller backup solutions
070185ES Oil Filter for Generac Guardian 8-24kW Generators

The 185ES Oil Filter stands out as the ideal choice for those seeking reliable engine performance and easy maintenance for their Generac Guardian 8-24kW generators. Its vibrant orange 90MM design offers 30% more filter capacity than standard 75MM filters, effectively removing impurities and improving oil cleanliness. Compatible with a wide range of models, it easily replaces OEM parts like 070185E and 070185F, requiring no special tools for installation. Made from durable high-quality materials, it ensures long-lasting performance. With a 1-year warranty and positive customer feedback, this filter delivers dependable filtration, helping extend your generator’s lifespan and efficiency.
Best For: homeowners and professionals seeking reliable, easy-to-install oil filters for their Generac Guardian 8-24kW generators to ensure optimal engine performance and longevity.
Pros:
- Effectively removes impurities, improving oil cleanliness and generator efficiency
- Easy to install without the need for special tools, saving time and effort
- Durable construction with a 1-year warranty for long-lasting performance
Cons:
- Some users have noted slight size differences that may require adjustments during installation
- Price may vary depending on retailer, potentially affecting affordability
- As a replacement part, compatibility is limited to specific generator models listed
Generac 2106Wh Portable Power Station

The Generac 2106Wh Portable Power Station stands out as an excellent choice for those seeking reliable, emission-free backup power for both outdoor adventures and indoor emergencies. Weighing just 48.8 pounds, it features a rugged metal enclosure, lithium-ion battery, and an electric start engine with a 2106W max output. It offers multiple outlets, including AC, USB-A, USB-C, and a 15W wireless charger, all displayed on a clear multi-color screen. Its fast solar recharging—80% in 3.3 hours—makes it versatile for prolonged use. Portable and quiet, it’s perfect for powering small devices, lights, or appliances during outages or outdoor trips.
Best For: outdoor enthusiasts, emergency preparedness households, and those needing a portable power source for indoor or outdoor use.
Pros:
- High-capacity 2106Wh lithium-ion battery provides reliable power for various devices
- Fast solar recharging, achieving 80% in just 3.3 hours, ideal for prolonged outdoor use
- Multiple output options including AC, USB-A, USB-C, and wireless charging for versatile device compatibility
Cons:
- Some users experience issues with AC charging and unit malfunctions
- Customer support experiences vary, with reports of delays and troubleshooting difficulties
- Heavier than some portable power options at 48.8 pounds, which may affect portability for some users
Generac Standby Generator Fascia Kit for Air-Cooled Models

Designed specifically for air-cooled Generac standby generators built after 2016, the Fascia Kit offers a sleek, contoured finish that enhances the unit’s appearance while providing essential protection. It features a bisque color that seamlessly blends with the generator’s design and snaps securely around the bottom, giving a refined look. The kit includes four fascia base trim pieces that improve visual appeal and help prevent pests from entering through base holes. Easy to install, especially in warm weather, it’s a practical upgrade that shields the unit from damage and critters, while adding an elegant touch that complements your home’s exterior.
Best For: homeowners with air-cooled Generac standby generators built after 2016 seeking a sleek, protective, and easy-to-install fascia upgrade.
Pros:
- Enhances the generator’s appearance with a sleek, contoured design and bisque color that matches well.
- Provides effective protection against pests by covering base holes, preventing rodent and insect entry.
- Easy to install, especially in warm weather, with clear instructions and snap-together assembly.
Cons:
- Becomes stiff in cold weather, sometimes requiring two people for installation.
- Not included with smaller models like the 18 KW, which some users view as a design shortcoming.
- Compatibility confirmation needed for models other than the 22 KW air-cooled, which may require additional research.
LOCOPOW Oil Filter for Generac Guardian and Portable Generators (4 Pack)

If you own a Generac Guardian or portable generator, the LOCOPOW Oil Filter 4-pack offers a reliable and cost-effective solution for maintaining peak engine performance. These filters are compatible with a wide range of models, including standby units from Bryant, Watchdog, Dayton, Siemens, Carrier, and post-2008 air-cooled generators, as well as portable models like the 5501 to 5887 series. Featuring a 90mm diameter with 30% increased capacity, they provide better filtration and engine protection. Made from durable materials, they fit OEM specifications perfectly. Customers praise their sturdy construction, ease of installation, and consistent performance, making them a smart choice for regular maintenance.
Best For: homeowners and maintenance professionals seeking reliable, cost-effective oil filters for Generac Guardian and portable generators to ensure optimal engine performance and longevity.
Pros:
- Compatible with a wide range of Generac Guardian and portable generator models, including post-2008 units and various OEM specifications
- Featuring a 90mm diameter with 30% increased capacity for enhanced filtration and engine protection
- Made from durable metal and filter paper, ensuring sturdy construction and long-lasting performance
Cons:
- May require specific tools for installation due to the 14-point set of flats on the metal case
- As a replacement part, it may not be suitable for generators outside the specified compatibility list
- Bulk purchase (4-pack) might be unnecessary for users with infrequent maintenance needs
Generac 12,500/9,500-Watt Tri-Fuel Portable Generator

For homeowners seeking versatile, portable power, the Generac 12,500/9,500-Watt Tri-Fuel Portable Generator stands out with its ability to run on gasoline, propane, or natural gas. It delivers 12,500 starting watts and 9,500 running watts, making it suitable for home backup, jobsites, or recreation. Its simple dial switch allows quick fuel changes, and onboard COsense® technology enhances safety by detecting dangerous CO levels. Built with a durable steel cradle, heavy-duty wheels, and covered outlets, it’s designed for rugged environments. With a 7.5-gallon tank providing up to 9.5 hours of runtime, it combines power, safety, and portability effectively.
Best For: homeowners, outdoor enthusiasts, and contractors needing reliable, versatile portable power with safety features and fuel flexibility.
Pros:
- Capable of running on gasoline, propane, or natural gas for maximum flexibility
- Onboard COsense® technology enhances safety by detecting hazardous CO levels
- Durable construction with rugged steel cradle and heavy-duty wheels for tough environments
Cons:
- Heavy weight (219 pounds) may require assistance for transportation
- Slightly larger dimensions could limit storage options in tight spaces
- Some users reported minor shipping or assembly issues that may require warranty support
Generac 3,300-Watt Portable Inverter Generator

The Generac GP3300i inverter generator stands out as an excellent choice for outdoor enthusiasts and homeowners who need reliable, portable power on the go. Its lightweight, compact design makes it perfect for camping, tailgating, or backup power for the home and RV use. With TruePower Technology, it delivers stable, safe power ideal for sensitive electronics and appliances. PowerRush Advance Technology provides over 50% more starting capacity, making it easy to run tools and motor-driven equipment. Additionally, its Economy Mode saves fuel, while COsense Technology reduces emissions. USB ports also allow convenient charging of devices, making it a versatile, efficient, and dependable portable power solution.
Best For: outdoor enthusiasts, homeowners, and RV users seeking reliable, portable, and quiet power for electronics, tools, and appliances.
Pros:
- Lightweight, compact design for easy portability and outdoor use
- Delivers stable, safe power suitable for sensitive electronics with TruePower Technology
- Features Fuel-saving Economy Mode and COsense Technology for efficiency and reduced emissions
Cons:
- Limited to 3,300 watts, which may not power larger appliances simultaneously
- May require parallel setup for higher power needs, adding complexity
- Slightly higher price point compared to basic portable generators with fewer features
070185ES Oil Filter for Generac 8-24kW Guardian Generators

The 185ES Oil Filter stands out as an essential component for maintaining the performance and longevity of Generac 8-24kW Guardian Generators. Its high-capacity 90mm orange design offers 30% more filter area than standard options, effectively trapping impurities and ensuring cleaner oil. Made of durable aluminum, it’s compatible with generators from 2008 onward and fits various brands like Honeywell, Eaton, and Siemens. Easy to replace, it only takes a few steps to install. With positive reviews and a simple installation process, this filter helps keep your generator running smoothly and extends its engine lifespan.
Best For: Homeowners and professional technicians seeking a reliable, high-capacity oil filter to extend the lifespan and optimize the performance of Generac 8-24kW Guardian Generators and compatible brands.
Pros:
- Provides 30% more filter area with a durable aluminum construction for enhanced impurity removal.
- Compatible with a wide range of generator brands and models from 2008 onward.
- Easy to install with straightforward replacement steps, making maintenance simple and quick.
Cons:
- Only available in one size and design, limiting customization options.
- May be slightly more expensive than standard 75mm filters due to larger capacity.
- Limited availability of reviews and feedback as it is a newer product on the market.
3PCS RC12YC Oil Filter Spark Plug for Generac Generators

If you’re maintaining a Generac generator, the PCS RC12YC Oil Filter Spark Plug set offers a convenient and reliable solution. This 3-piece set includes oil filters and six spark plugs, replacing multiple part numbers for compatibility across a range of models. It’s designed for easy installation, ensuring peak performance and longer service life. Suitable for home standby and portable generators up to 24kW, it’s perfect for maintaining engines efficiently. With positive reviews and a competitive price, this kit simplifies generator upkeep, helping you keep your system running smoothly. Plus, its compatibility with popular models makes it a versatile choice for your maintenance needs.
Best For: homeowners and maintenance professionals seeking an all-in-one kit for easy, reliable upkeep of Generac generators and similar engine models.
Pros:
- Includes both oil filters and spark plugs for comprehensive maintenance.
- Compatible with a wide range of Generac and other generator models, ensuring versatility.
- Designed for easy installation with high-quality materials, promoting durability and performance.
Cons:
- Limited to specific generator brands and models, not suitable for all engine types.
- Price may vary, and some buyers might find it more cost-effective to purchase individual parts.
- Only available in a 3-piece set, which might be less flexible for those needing only one component.
070185ES Oil Filter for Generac Guardian Generators (2 Pack)

For homeowners seeking reliable generator performance, the 185ES Oil Filter for Generac Guardian Generators stands out due to its larger capacity and advanced filtration features. This 2-pack fits models in the 8-24kW Guardian series, including portable units. With a 90mm size and 30% more capacity than standard filters, it improves filtration efficiency and helps maintain clean oil, extending generator lifespan. Crafted with durable fiberglass and steel, it offers high build quality and compatibility with OEM parts. While some users note minor size variations, overall, customers appreciate its performance, value, and ability to keep their generators running smoothly for months.
Best For: homeowners and maintenance professionals seeking reliable, high-capacity oil filters for 8-24kW Generac Guardian generators to ensure optimal performance and extended generator lifespan.
Pros:
- Larger capacity with 90mm size and 30% more filtration media for improved impurity removal
- Durable construction with fiberglass and steel, ensuring high build quality and longevity
- Compatible with OEM models and offers reliable performance with positive customer reviews
Cons:
- Slight size discrepancies may cause loose fit issues with some accessories like oil filter heaters
- Some concerns about anti-drainback valve effectiveness due to nitrile rubber degradation over time
- Price may be higher than generic or less well-built alternatives, though still competitive
Universal Generator Replacement Kit (Evolution-5W30) for 0J8478S and 0J932300SM (10-26KW)

Looking for an easy way to maintain your Generac generator without the hassle of professional service? The Universal Generator Replacement Kit (Evolution-5W30) is designed for models 0J8478S and 0J932300SM, covering 10-26KW air-cooled units. It includes everything you need: filters, spark plugs, synthetic 5W30 oil, and an oil wipe—making routine maintenance simple and cost-effective. This complete kit ensures your generator runs smoothly, protects your engine, and extends its lifespan. With easy DIY instructions, you can save up to $250 on service costs while keeping your generator in top condition. It’s a reliable, all-in-one solution for homeowners seeking hassle-free upkeep.
Best For: homeowners and DIY enthusiasts seeking a comprehensive, cost-effective maintenance solution for their 10-26KW Generac air-cooled generators.
Pros:
- All-in-one kit with filters, spark plugs, synthetic oil, and accessories simplifies routine maintenance.
- Cost savings of up to $250 compared to professional service, with easy-to-follow DIY instructions.
- Compatible with multiple Generac models, ensuring reliable performance and extended generator lifespan.
Cons:
- May require basic mechanical skills for optimal installation and maintenance.
- Limited to specific models (0J8478S and 0J932300SM), not suitable for other generator brands or sizes.
- The kit’s weight and size may require careful storage and handling during setup.
Factors to Consider When Choosing a Generac 24KW Standby Generator

When selecting a Generac 24KW standby generator, I consider several key factors to guarantee it meets my needs. I look at power capacity, fuel type, and installation requirements to match my home’s setup. Additionally, I evaluate backup features and maintenance support to keep everything running smoothly.
Power Capacity Needs
Choosing the right power capacity for your Generac 24kW standby generator starts with accurately evaluating your home’s total electrical load. It’s essential to verify the generator’s wattage exceeds your peak power needs, especially during outages. Decide whether you want to power just essential circuits or your entire household, as this affects the required kilowatt capacity. Remember to calculate the starting wattage for appliances with motors, like refrigerators and air conditioners, since they draw more power at startup. Also, consider future plans—adding new appliances or systems could increase your energy demands later. A 24kW generator generally supports a large family home with multiple appliances running simultaneously. Proper assessment helps avoid underpowered generators and ensures reliable, seamless power during outages.
Fuel Type Compatibility
Ensuring your Generac 24kW standby generator matches your home’s fuel supply is essential for reliable operation. First, check if your home uses natural gas or liquid propane, and select a generator compatible with that fuel. If you want flexibility, consider a dual-fuel model that can switch between gas and propane, providing backup options during supply disruptions. Verify the maximum BTU rating and pressure requirements for your fuel source to guarantee your existing infrastructure can support the generator’s demand. Also, assess whether your pipelines and tanks can handle continuous operation for the desired runtime without issues. Ultimately, be aware of local regulations or restrictions on fuel type use, as they can influence your choice and installation options.
Installation Requirements
Selecting the right location and preparing your space properly are key steps before installing your Generac 24kW standby generator. I recommend working with a licensed electrician to guarantee compliance with local electrical codes and safety standards. Since the generator weighs around 455 pounds and measures roughly 48L x 25W x 25H inches, you’ll need a solid, level surface with adequate support. Installation generally requires minimal ground preparation but involves proper wiring and securing fuel supply connections for natural gas or propane—these must be correctly sized for safe, reliable operation. Additionally, installing a 200 Amp transfer switch is advised to allow seamless switching between utility and generator power during outages. Proper planning ensures safe, efficient, and long-lasting performance of your generator.
Backup System Features
A reliable backup system activates automatically within seconds of a power outage, keeping your home powered without manual intervention. I look for systems with transfer switches that seamlessly switch between utility and generator power, guaranteeing no downtime or manual effort. Remote monitoring features, like Wi-Fi or cellular connectivity, are vital for real-time updates and maintenance alerts, giving me peace of mind. The generator should have enough wattage capacity to support my critical appliances or the entire household, depending on my needs. Safety features like overload protection, automatic shutdown, and low oil alerts are essential—they protect the system from damage and guarantee safe operation during outages. These features collectively guarantee a dependable, safe, and convenient backup power solution for my home.
Maintenance and Support
When choosing a Generac 24kW standby generator, reliable maintenance and support are essential to keep it running smoothly over time. I look for a manufacturer that offers a solid warranty, like a 5-year limited plan, to cover repairs and parts replacement. It’s also important to have access to 24/7 customer support and a nationwide dealer network, ensuring help is always available when needed. Easy access to replacement parts, filters, and oil through authorized distributors or online platforms is vital for quick maintenance. I also prefer generators that support remote monitoring via Wi-Fi or cellular connectivity, so I can troubleshoot proactively. In conclusion, I consider the manufacturer’s reputation for swift response times and quality technical assistance, giving me confidence in long-term reliability.
Frequently Asked Questions
How Does a Generac 24KW Generator Compare to Smaller Models?
A Generac 24kW generator offers substantially more power than smaller models, making it ideal for larger homes with many appliances or critical systems. I find that it handles simultaneous loads effortlessly, ensuring my entire household stays operational during outages. Smaller models are more affordable and suitable for basic needs, but if you want reliable, whole-home backup, the 24kW is a superior choice for peace of mind and consistent performance.
What Are the Noise Levels During Operation for This Generator?
Ever wonder if this generator’s noise level will disturb your peace? I can tell you, the Generac 24kW operates quietly—around 66 decibels, similar to normal conversation. It’s designed to run smoothly without loud disruptions, even during long outages. I was surprised how unobtrusive it is, so you can rest assured that your home stays powered without sacrificing your comfort or tranquility.
Can This Generator Run All Household Appliances Simultaneously?
Yes, this generator can run all your household appliances simultaneously. I’ve found that a 24kW Generac provides ample power to support your fridge, HVAC, lights, and even some heavy-duty appliances without any issues. It’s designed for whole-home backup, so you don’t have to worry about managing which devices are on or off during an outage. Just make certain your total load stays within the generator’s capacity.
What Is the Expected Lifespan of a Generac 24KW Standby Generator?
Think of my Generac 24kW generator as a trusty old friend, built to last. Its lifespan typically ranges from 20 to 25 years with proper maintenance. Regular oil changes, parts checks, and timely service keep it running smoothly, almost like nurturing a relationship. So, if you treat it well, you’ll enjoy reliable power year after year, making it a valuable investment in your home’s safety and comfort.
Are There Any Special Installation Requirements or Restrictions?
Yes, there are special installation requirements for a Generac 24kW standby generator. You’ll need a concrete pad for placement, a proper ventilation system, and a dedicated transfer switch. Local building codes and permits might also impose restrictions, so I recommend checking with your local authorities before installing. Hiring a licensed professional guarantees everything complies and is installed safely, giving you peace of mind during outages.
Conclusion
Choosing the right Generac 24kW standby generator is like planting a sturdy tree in your yard—steady, reliable, and ready to protect your home when storms roll in. With the right maintenance and model, you’ll never feel powerless. Think of it as your home’s silent guardian, quietly ensuring comfort and safety even in the darkest moments. When the power goes out, your generator becomes the lighthouse guiding your family safely home.