Generac 5826/5871 10kW Guardian LP/NG Standby Generator w/ 100 Amp Smart Transfer Switch New

Flash Badge
Flash Sale 10% Off Genetrax10

$1,679.40

Stock Status
In stock, ready to ship

Free Shipping

Free shipping for all

Free Returns

Easy returns on orders

Secure Shopping

100% protected

24/7 Support

Always here to help

Order Timeline

Order placed

Dispatches

Delivery

Generac Authorized Dealer

Manufacturer Refurbished 5 year factory warranty
Manufacturer Refurbished Brand new and manufacturer direct
Manufacturer Refurbished Includes 50 amp automatic transfer switch
Manufacturer Refurbished Ships directly from Generac
Manufacturer Refurbished Works with liquid propane or natural gas
Manufacturer Refurbished Authorized Generac dealer

 


What’s In the Box:

  • Generac Guardian/Centurion 10kw Standby generator
  • 50 amp automatic transfer switch
  • Aluminum or steel enclosure
  • Manual

Provides essential circuit power protection for your home, ensuring the necessities remain powered during an outage. Has the ability to backup a 3-ton air conditioner, well pump or water heater, and the main rooms of your house.

    Engine
    • Displacement: 530 cc
    • Fuel: Required fuel pressure to generator fuel inlet at all load ranges – 5 to 7 inches of water column for natural gas, 11 to 14 inches of water column for LP gas
      ; 
      Outputs are based upon natural gas value:
      @ 1000 Btu per cubic feet and 2520 Btu per cubic feet with LP; 
      @ 35,314.7 Btu per cubic meter and 88,993 Btu per cubic meter with LP
    • Governor: (System) Electronic
    • Ignition: (System) Solid-state w/ Magneto
    • Oil Capacity: (Including Filter, Quarts/Liters) Approx. 1.7 qt/1.6 L
    • RPM: (Operating) 3,600 rpm
    • Starter: 12 Vdc
    • Type of Engine: GENERAC OHVI V-TWIN
    • Valves: (Arrangement) Overhead Valve
    • Compression Ratio: 9.5:1
    • Cylinders: (Number of) 2 ; 
      (Block) Aluminum w/ Cast Iron Sleeve
    Features
    • Generac® Transfer Switches. Long life and reliability are 
      synonymous with Generac Power Systems. One reason for this 
      confidence is that the GENERAC product line includes its own transfer 
      systems and controls for total system compatibility. 
    • Innovative Design & Prototype Testing are key components 
      of GENERAC’S success in “Improving power by design.” But it 
      doesn’t stop there. Total commitment to component testing, reliability 
      testing, environmental testing, destruction and life testing, plus testing 
      to applicable CSA, NEMA, EGSA, and other standards, allows you to 
      choose Generac Power Systems with the confidence that these 
      systems will provide superior performance.
    • Single Source Service Response from Generac’s extensive dealer 
      network provides parts and service know-how for the entire unit, from the 
      engine to the smallest electronic component.
    • Solid-State, Frequency Compensated Voltage Regulation. 
      This state-of-the-art power maximizing regulation system is standard on 
      all Generac models. It provides optimized FAST RESPONSE to changing 
      load conditions and MAXIMUM MOTOR STARTING CAPABILITY by 
      electronically torque-matching the surge loads to the engine. Digital 
      voltage regulation at ±1%.
    • Test Criteria: Prototype Tested, Nema Mg1-22 Evaluation, System Torsional Tested, Motor Starting Ability
    • True Power™ Electrical Technology: Superior harmonics 
      and sine wave form produce less than 5% Total Harmonic Distortion for 
      utility quality power. This allows confident operation of sensitive electronic 
      equipment and micro-chip based appliances, such as variable speed HVAC 
      systems.
    Transmission
    • Main circuit breaker: (Line) 50 Amp
    • Rated Power: Rated Maximum Continuous Power Capacity (LP) 10,000 Watts ; Rated Maximum Continuous Power Capacity (NG) 10,000 Watts
    Dimensions
    • Dimensions (LxWxH): (in/mm) 48 x 25 x 29/1218 x 638 x 732
    • Max. Load: Rated Maximum Continuous Load Current – 240 Volts (LP/NG) – 45.8/41.7
    • Rated AC Output: (Frequency) 60 Hz
    • Weight: (lb/kg) 407/184.6
    General Information
    • Fuel Consumption: (Natural Gas – cu.ft./hr.(cu.meters/hr.)): ; 
      1/2 Load – 124 (3.51); 
      Full Load – 195 (5.52); 
      (Liquid Propane – ft3/hr (gal/hr) [l/hr]: ; 
      1/2 Load – 42.8 (1.18) [4.45]; 
      Full Load – 70 (1.92) [7.28]
    • Number of: (Rotor Poles) 2
    • Output: (Sound output in dB(A) at 23 ft (7 m) with generator operating at normal load) 63
    • Phase: 1
    • Power: (Factor) 1
    • Rated Voltage: 240
    • Battery: Requirement (not included) Group 26R, 12 Volts and 525 CCA Minimum

    SPECIFICATIONS SUMMARY

    Maximum Watts (LP)
    10000
    Maximum Watts (NG)
    10000

    DIMENSIONS

    Product Length (in.)
    48
    Product Width (in.)
    25
    Product Height (in.)
    29
    Product Weight (lbs)
    513

    As as authorized Generac dealer, this item comes with a 5 year factory warranty.

    FAQ Section - Genetrax Power Solutions

    Frequently Asked Questions

    Get answers to common questions about our power equipment and services

    What size generator do I need for my home?

    +

    The size of generator you need depends on your home's power requirements. Here's a general guide:

    • Small homes (1,500 sq ft): 5-7kW generator
    • Medium homes (2,500 sq ft): 10-15kW generator
    • Large homes (3,500+ sq ft): 17-20kW generator

    Consider essential appliances like refrigerator, HVAC, lights, and medical equipment. Our experts can help you calculate your exact needs.

    What's the difference between inverter and portable generators?

    +

    Inverter Generators:

    • Produce clean, stable power safe for electronics
    • Quieter operation (50-60 dB)
    • More fuel-efficient
    • Lighter and more portable

    Portable Generators:

    • Higher power output capability
    • Lower cost per watt
    • Longer runtime on larger fuel tanks
    • Better for heavy-duty applications

    How often should I maintain my generator?

    +

    Regular maintenance is crucial for generator reliability:

    • Monthly: Check oil level, battery, and run for 15-20 minutes
    • Every 3 months: Change oil, replace air filter, check spark plug
    • Every 6 months: Professional inspection and tune-up
    • Annually: Comprehensive maintenance and load testing

    We offer maintenance packages to keep your generator in peak condition.

    Do you really offer free shipping on all orders?

    +

    Yes, absolutely! We offer completely free shipping on all orders nationwide, regardless of size or weight.

    • No minimum order requirements
    • Free shipping to all 50 states
    • Includes large items like standby generators
    • Professional white-glove delivery available

    This saves you hundreds of dollars compared to competitors who charge shipping fees.

    How long does shipping take?

    +

    Shipping times vary by product and location:

    • Small items (accessories): 3-5 business days
    • Portable generators: 5-7 business days
    • Large equipment: 7-14 business days
    • Standby generators: 2-3 weeks (includes coordination)

    You'll receive tracking information as soon as your order ships.

    What kind of technical support do you provide?

    +

    We provide comprehensive technical support:

    • 24/7 Phone Support: Emergency assistance anytime
    • Installation Guidance: Step-by-step setup help
    • Troubleshooting: Diagnostic and repair guidance
    • Maintenance Support: Scheduled maintenance reminders
    • Parts Support: Genuine parts and accessories

    Our certified technicians have decades of experience with power equipment.

    Can you help with generator installation?

    +

    Yes! We offer complete installation services:

    • Site Assessment: Professional evaluation of your property
    • Permit Assistance: Help with local permits and codes
    • Professional Installation: Certified electricians and technicians
    • Transfer Switch Setup: Automatic switching systems
    • Final Testing: Complete system testing and commissioning

    Installation is especially important for standby generators and requires licensed professionals.

    What warranty do you offer on generators?

    +

    We offer comprehensive warranty coverage:

    • Portable Generators: 2-3 years manufacturer warranty
    • Inverter Generators: 3-5 years manufacturer warranty
    • Standby Generators: 5-10 years manufacturer warranty
    • Extended Warranties: Available up to 10 years

    All warranties cover parts, labor, and emergency service calls.

    How do I claim warranty service?

    +

    Warranty claims are simple and fast:

    • Contact Us: Call or email our warranty department
    • Provide Information: Model, serial number, and issue description
    • Diagnosis: Phone or on-site troubleshooting
    • Service: Repair or replacement as needed

    Most warranty issues are resolved within 24-48 hours.

    Can I return a generator if I'm not satisfied?

    +

    Absolutely! We offer a generous return policy:

    • 30-Day Returns: Full 30 days to return any item
    • Free Returns: We pay for return shipping
    • No Restocking Fees: Unlike competitors, we don't charge fees
    • Free Exchanges: Exchange for different models at no cost

    Your satisfaction is our top priority, and we stand behind every product we sell.

    Do you offer financing options?

    +

    Yes, we offer several financing options to make your purchase affordable:

    • 0% APR: 6-12 months same-as-cash on qualifying purchases
    • Extended Terms: Up to 60 months financing available
    • Quick Approval: Instant online approval in minutes
    • Flexible Payments: Monthly payment options to fit your budget

    Contact us to learn about current financing promotions and qualify for the best rates.

    Still Have Questions?

    Our power equipment experts are here to help you find the perfect solution for your needs.

    Call +1 (361) 229-3355 Email Support
    Customer Reviews - Genetrax Power Solutions

    Customer Reviews

    See what our customers say about our power equipment and service

    4.8
    Average Rating
    2,847
    Total Reviews
    96%
    Would Recommend
    4.8
    Based on 2,847 verified reviews
    JD
    John Davis
    Houston, TX
    Verified
    2 weeks ago
    7kW Standby Generator
    "Outstanding generator! Installed during hurricane season and it's been a lifesaver. Powers our entire house including AC during outages. The installation team was professional and the generator runs quietly. Free shipping saved us hundreds. Highly recommend Genetrax!"
    Purchase verified
    SM
    Sarah Miller
    Phoenix, AZ
    Verified
    1 month ago
    3.5kW Inverter Generator
    "Perfect for camping and backup power! This inverter generator is incredibly quiet and fuel-efficient. Powers all our RV appliances without issues. The customer service was excellent when I had questions. Delivery was fast and free. Great value for money!"
    Purchase verified
    RJ
    Robert Johnson
    Montana
    Verified
    3 weeks ago
    25 Ton Log Splitter
    "This log splitter is a beast! Splits even the toughest hardwood with ease. Built like a tank and handles our commercial firewood operation perfectly. The hydraulic system is smooth and powerful. Assembly was straightforward with clear instructions."
    Purchase verified
    MR
    Maria Rodriguez
    Florida
    Verified
    1 week ago
    Customer Service
    "Exceptional customer service! When I had questions about generator sizing, their experts spent 30 minutes helping me choose the right model. The technical support is outstanding - they walked me through maintenance procedures. This is how customer service should be!"
    Purchase verified
    DW
    David Wilson
    California
    Verified
    2 months ago
    10.5kW Portable Generator
    "Purchased this for our construction business and it's been reliable every single day. Starts easily, runs all our power tools, and the electric start is convenient. The return policy gave me confidence to buy. Quality construction and fair pricing."
    Purchase verified
    LT
    Lisa Thompson
    North Carolina
    Verified
    5 days ago
    15kW Standby Generator
    "Great generator overall! Installation went smoothly and it automatically kicks in during outages. Only minor complaint is the initial setup took longer than expected, but the end result is excellent. The free shipping was a huge bonus on such a large item."
    Purchase verified
    Verified Reviews
    🛡️ Trusted by 50K+ Customers
    🏆 Industry Leading Service