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48kW Fortress Standby Generator - Aluminum enclosure, Block heater included, B&S Controller
$22,765.00
Briggs & Stratton

48kW Fortress Standby Generator - Aluminum enclosure, Block heater included, B&S Controller

SKU: 76850
48kW Fortress Standby Generator - Aluminum enclosure, Block heater included, B&S Controller

48kW standby generator delivering reliable backup power for large residential and light commercial applications. Liquid-cooled design with Briggs & Stratton engineering ensures consistent performance on Liquid Propane or Natural Gas.

Aluminum enclosure with integrated block heater and advanced controller technology.
USA-assembled with 6-year warranty coverage.
Ideal for estates, businesses, farms, and facilities requiring dependable power during outages.


Features:

Performance & Power Output
Delivers 48kW standby power with stable single-phase, 60Hz operation for demanding electrical loads including HVAC systems, refrigeration, and multi-zone properties. Engineered for consistent voltage regulation and reliable whole-property backup performance.

Commercial Vanguard™ Engine
Powered by a Commercial Vanguard™ liquid-cooled engine built for continuous-duty operation and long service life. Designed to perform in extreme temperatures and demanding commercial environments.

Intelligent Power Management
InfoHub™ Wireless Monitoring enables remote system monitoring via smartphone or computer with maintenance reminders and status alerts. Symphony® II Power Management automatically balances electrical loads to prevent overload and maintain seamless operation.

Durability & Construction
Constructed with automotive-grade galvanneal steel and a corrosion-resistant powder-coat finish for long-term outdoor durability. Engineered to meet UL and CSA standards. Flexible placement allows installation close to structures where space is limited.

Fuel Efficiency & Noise
Optimized fuel consumption for efficient operation on LP or NG. Advanced sound-dampening design reduces operating noise, making it suitable for residential and mixed-use environments.

Convenience & Maintenance
Includes integrated battery charger and automatic weekly exercise cycle to maintain system readiness. Advanced controller diagnostics provide clear system status and simplify service oversight.

Installation & Support
Backed by a nationwide dealer network and professional support team available to assist with installation guidance, service coordination, and ongoing maintenance.


Specifications:

Model Number
076850

Running Watts (Liquid Propane) kW**
48

Running Watts (Natural Gas) kW**
48

Voltage
120/240

Engine Type
Liquid-Cooled Commercial Vanguard™

Normal Operating Sound
Approximately 70 dB

Assembled Weight (lbs.)
Approx. 1,900–2,000 (varies by configuration)

 

 

Payment & Security

Payment methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Briggs & Stratton

48kW Fortress Standby Generator - Aluminum enclosure, Block heater included, B&S Controller

SKU: 76850
$22,765.00
In Stock ·  In Stock • Estimated Delivery 1-2 Weeks
View financing options

Free Shipping
FREE — 47 contiguous US states
Sales tax is calculated at checkout
Authorized Briggs & Stratton Dealer
6 Year Warranty Limited Warranty
Ships Direct — US Warehouse
US-based expert support team
1
Free Shipping
Most US States
30-Day Returns
Hassle-free policy
Secure Payment
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48kW standby generator delivering reliable backup power for large residential and light commercial applications. Liquid-cooled design with Briggs & Stratton engineering ensures consistent performance on Liquid Propane or Natural Gas.

Aluminum enclosure with integrated block heater and advanced controller technology.
USA-assembled with 6-year warranty coverage.
Ideal for estates, businesses, farms, and facilities requiring dependable power during outages.


Features:

Performance & Power Output
Delivers 48kW standby power with stable single-phase, 60Hz operation for demanding electrical loads including HVAC systems, refrigeration, and multi-zone properties. Engineered for consistent voltage regulation and reliable whole-property backup performance.

Commercial Vanguard™ Engine
Powered by a Commercial Vanguard™ liquid-cooled engine built for continuous-duty operation and long service life. Designed to perform in extreme temperatures and demanding commercial environments.

Intelligent Power Management
InfoHub™ Wireless Monitoring enables remote system monitoring via smartphone or computer with maintenance reminders and status alerts. Symphony® II Power Management automatically balances electrical loads to prevent overload and maintain seamless operation.

Durability & Construction
Constructed with automotive-grade galvanneal steel and a corrosion-resistant powder-coat finish for long-term outdoor durability. Engineered to meet UL and CSA standards. Flexible placement allows installation close to structures where space is limited.

Fuel Efficiency & Noise
Optimized fuel consumption for efficient operation on LP or NG. Advanced sound-dampening design reduces operating noise, making it suitable for residential and mixed-use environments.

Convenience & Maintenance
Includes integrated battery charger and automatic weekly exercise cycle to maintain system readiness. Advanced controller diagnostics provide clear system status and simplify service oversight.

Installation & Support
Backed by a nationwide dealer network and professional support team available to assist with installation guidance, service coordination, and ongoing maintenance.


Specifications:

Model Number
076850

Running Watts (Liquid Propane) kW**
48

Running Watts (Natural Gas) kW**
48

Voltage
120/240

Engine Type
Liquid-Cooled Commercial Vanguard™

Normal Operating Sound
Approximately 70 dB

Assembled Weight (lbs.)
Approx. 1,900–2,000 (varies by configuration)

 

 

Payment & Security

Payment methods
  • American Express
  • Apple Pay
  • Diners Club
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Visa

Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

Highlights

Authorized dealer — warranty fully protected
Free shipping — 47 contiguous US states
In Stock • Estimated Delivery 1-2 Weeks
Customer Support: (708) 738-7167
6 Year Warranty Limited Warranty Manufacturer Warranty
Free Lift Gate Service
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Questions & Answers
Q: Is this an authorized product with a valid warranty?
A: Yes. Mr. Volt, Inc. is an authorized dealer for every brand we carry. Your manufacturer warranty is fully valid and protected on every purchase.
Q: How do I track my order?
A: Order tracking is provided via email. If for any reason tracking information is delayed or missing for any reason, our support team is available to provide shipment updates and assist with your order.
Q: Do you offer financing?
A: Yes — 0% APR financing through Affirm, APPROVE, and PayPal.
Q: What if I need help choosing the right product?
A: Our experts are here to help. Call, text, or email us and we'll recommend the right solution based on your specific needs.
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