Deliver to
Change Location
Results loading, please wait
|
Help
My Account
Loading...
Cancel
View All
Back
My Account
Deliver to
An important message from our CEO to customers regarding the COVID-19 outbreak. Read Now
Message regarding the COVID-19 outbreak. Read Now
Home
/
Whole House Generators
/
Home Standby Generators
/
Emergency Generators
/
40-59 kW Whole House Generators
40-59 kW Whole House Generators
Quick Search
Filter
▼
Best Selling
▼
Best Selling
Price: Low to High
Price: High to Low
Name: A-Z
Name: Z-A
Recommends Only
Closeouts Only
In-stock Only
Next Day Air Only
Availability
Go
Filters
Brand
Generac Protector (17)
Briggs & Stratton (8)
Cummins Power Generation (8)
Honeywell (8)
Kohler (5)
Rated Watts (Watts)
40000 - 41999 (3)
44000 - 45999 (8)
48000 - 49999 (24)
50000 - 51999 (11)
Voltage
120/208 Three-Phase (11)
120/240 Single-Phase (15)
120/240 Three-Phase (11)
277/480 Three-Phase (9)
Engine Brand
Cummins Onan (8)
Generac (8)
Generac 2.4L 4-Cylinder (8)
Generac 5.4L V-8 (9)
Kohler (5)
International (8)
Fuel Type
Diesel (6)
LP/Natural Gas (39)
Engine RPM (RPM)
1800 (38)
3600 (8)
CC (CC)
2400 (11)
3300 (2)
3400 (4)
4500 (4)
5013 (6)
5400 (8)
5900 (3)
6200 (5)
+ Show More
NG Power Capacity (Watts)
40000 (3)
43200 (8)
45000 (8)
48000 (18)
50000 (3)
LP Power Capacity (Watts)
40000 (3)
45000 (10)
48000 (21)
50000 (6)
Compare
Generac Protector® 45kW Automatic Standby Generator (Aluminum)(120/240V Single-Phase)
Model: RG04524ANAX
37% Buy This
Write a Review
Ask a Question
$13,037.00
Only 4 In-Stock
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector® 48kW Automatic Standby Diesel Generator (120/240V Single-Phase)
Model: RD04834ADAE
21% Buy This
(2)
Ask a Question
$16,599.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector QS® 48kW Automatic Standby Generator (Premium-Grade)(120/240V Single-Phase)
Model: RG04845ANAX
16% Buy This
(2)
Ask a Question
$15,997.00
Only 5 In-Stock
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 76350 - 48 kW Liquid Cooled AluminumStandby Generator (Premium-Grade) (120/240V Single-Phase)
Model: 076350
5% Buy This
Write a Review
Ask a Question
$15,799.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Cummins RS50 Quiet Connect™ Series 50kW Standby Power Generator (120/240V Single-Phase)
Model: A054F630
5% Buy This
Write a Review
Ask a Question
$14,950.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector® 50kW Automatic Standby Diesel Generator (120/208V 3-Phase)
Model: RD05034GDAE
5% Buy This
Write a Review
Ask a Question
$16,599.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector® 45kW Automatic Standby Generator (Aluminum)(120/240V Single-Phase) (CARB)
Model: RG04524ANAC
5% Buy This
Write a Review
Ask a Question
$14,217.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector® 45kW Automatic Standby Generator (Aluminum)(277/480V 3-Phase)
Model: RG04524KNAX
5% Buy This
Write a Review
Ask a Question
$13,037.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Kohler 48RCLB - 48 kW Emergency Standby Power Generator (120/240V Single-Phase)
Model: 48RCLB
Write a Review
Ask a Question
$14,585.00
Only 2 In-Stock
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Kohler 48RCLB - 48kW Emergency Standby Power Generator Bundle (200A Service Disc. ATS w/ Load Shedding)
Model: EGD-48RCLBRXT200ASE-KIT
Write a Review
Ask a Question
$15,426.05
Only 2 In-Stock
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector QS® 48kW Automatic Standby Generator (120/208V 3-Phase)
Model: RG04845GNAX
Write a Review
Ask a Question
$15,997.00
Only 3 In-Stock
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Generac Protector QS® 48kW Automatic Standby Generator (Premium-Grade) (Scratch & Dent)
Model: RG04854ANAX-SD
Write a Review
Ask a Question
$14,597.00
Was
$14,797.00
SAVE $200.00
Only 1 In-Stock
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 76150 - 48 kW Liquid Cooled Standby Generator (Steel) (Premium-Grade) (120/240V Single-Phase)
Model: 076150
(1)
Ask a Question
$15,299.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Kohler 50kW Emergency Standby Power Generator (120/208V Three-Phase)
Model: 48RCLB-QS6
Write a Review
Ask a Question
$14,731.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Kohler 50kW Emergency Standby Power Generator (120/240V Three-Phase)
Model: 48RCLB-QS7
Write a Review
Ask a Question
$14,731.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Kohler 50kW Emergency Standby Power Generator (277/480V Three-Phase)
Model: 48RCLB-QS8
Write a Review
Ask a Question
$14,731.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 48kW Standby Generator (Aluminum) w/ InteliNano Controller (120/208V 3-Phase)
Model: 76151
Write a Review
Ask a Question
$16,099.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 48kW Standby Generator (Aluminum) w/ InteliNano Controller (120/240V 3-Phase)
Model: 76153
Write a Review
Ask a Question
$16,099.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 48kW Standby Generator (Aluminum) w/ InteliNano Controller (277/480V 3-Phase)
Model: 76155
Write a Review
Ask a Question
$16,099.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 48kW Standby Generator (Aluminum) w/ InteliLite Controller (120/208V 3-Phase)
Model: 76351
Write a Review
Ask a Question
$16,499.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 48kW Standby Generator (Aluminum) w/ InteliLite Controller (120/240V 3-Phase)
Model: 76353
Write a Review
Ask a Question
$16,499.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Briggs & Stratton 48kW Standby Generator (Aluminum) w/ InteliLite Controller (277/480V 3-Phase)
Model: 76355
Write a Review
Ask a Question
$16,499.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Honeywell™ 48 kW Commercial Automatic Standby Generator (120/208V 3-Phase) (48 State Compl.)
Model: HG04854GNAX
Write a Review
Ask a Question
$15,099.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
Compare
Honeywell™ 48 kW Commercial Automatic Standby Generator (120/208V 3-Phase) (SCAQMD Compl.)
Model: HG04854GNAC
Write a Review
Ask a Question
$16,279.00
Factory-Direct
Free Shipping
×
Free Shipping
*This product qualifies for
Free Shipping
anywhere in the contiguous US. Accessories may ship separately. Items over 100lbs shipped via semi-truck, be sure to select "Lift Gate" to lower the product to the ground curbside. Remote area surcharges may apply, see our full shipping policy for more details.
2% Check Discount
×
2% Check Discount
Save 2% instantly by using our convenient "e-check" option or by simply mailing us a paper check. Yes, your order will be delayed slightly (5 business days). But, if you can wait, the savings are significant.
Add To Cart
PREVIOUS
PREV
1
2
NEXT
Displaying Products 1 - 24 (of 46
)
