The Generac Guardian Standby Generators are not rated by horsepower but rather by total displacement of the engine.
Free Gift Card Details
$100 Order
$250 Order
$500 Order
$1000 Order
- The promotion will be automatically applied on the Shopping Cart page.
- To qualify for this offer, your order subtotal must equal $100 or more. Excludes gift cards, free item offers, warranties, Advantage memberships, tax and shipping.
- Free gift cards will be issued in the form of e-gift cards only, not physical gift cards.
- E-gift cards will be sent to the email address used in your billing address when your order ships or is picked up.
- Free e-gift cards expire 11/01/26.
- Promo code not valid on prior purchases or on Honda and STIHL products and cannot be combined with other promotional offers.
- Valid online and in participating retail stores.
- Limited-time offer. Subject to change without notice.
Please see replacement Item# 54313. Generac Guardian Air-Cooled Standby Generator — 16kW (LP)/16kW (NG), 200 Amp Service-Rated Automatic Transfer Switch, Model# 6462

This is a carousel with one large zoomable image and a track of thumbnails on the left. Select any of the thumbnail buttons to change the zoomable image on the right. If a thumbnail is a video or 360 degree image thumbnail, or the last thumbnail in the list, the button will open the product media modal.

Click or Tap image to Zoom
This item is no longer available.
- Includes 200-Amp service-rated automatic transfer switch
- Generac OHVI® engine is designed to run for extended periods, ensuring reliable, uninterrupted power
- Generac's Evolution Controller features a dual-line, improved multilingual LCD display for easy monitoring and management of generator functions, built-in hour meter and external at-a-glance indicator lights
- Install as close as 18in. to home as certified by NFPA standards or directed by local codes
- True Power™ technology provides clean, smooth operation of sensitive electronics and appliances
See full description
Description
Key Specs
Reviews
Q & A
Accessories
Warranty
Compare
Product Summary
What's Included
- (1) 16kW generator, Model# 6462
- (1) 200 Amp service-rated automatic transfer switch
- (1) Pre-attached composite mounting pad
Features + Benefits
- Includes 200-Amp service-rated automatic transfer switch
- Generac OHVI® engine is designed to run for extended periods, ensuring reliable, uninterrupted power
- Generac's Evolution Controller features a dual-line, improved multilingual LCD display for easy monitoring and management of generator functions, built-in hour meter and external at-a-glance indicator lights
- Install as close as 18in. to home as certified by NFPA standards or directed by local codes
- True Power™ technology provides clean, smooth operation of sensitive electronics and appliances
- Quiet-Test™ weekly self-test mode runs at lower RPM, is quieter and consumes less fuel
- Sturdy, all-weather steel enclosure
- Tool-less fuel conversion with swivel-action fuel selector dial allows for easy switching between natural gas and LP fuels
- Compatible with Mobile Link™, Item# 37871, (sold separately) for adding Mobile Link wireless remote monitoring system to receive status updates using your computer, tablet or smart phone
- Battery required, not included
- 24/7 Generac customer care support 365 days a year
- Engineered and built in U.S.A.
- 5-year limited warranty
Key Specs
| Attribute | Specification |
|---|---|
item# | 45331 |
Brand | Generac |
Manufacturer's Warranty | 5 year limited warranty |
Ship Weight | 556.0 LB |
Voltage | 120/240 |
Rated Kilowatts LP | 16 |
Rated Kilowatts NG | 16 |
Max. Amps | 66.6 |
Fuel Type | Multi-Fuel |
Engine Brand | Generac |
| Attribute | Specification |
|---|---|
Engine Model | OHVI |
Engine Displacement | 992 cc |
Noise Level | 66 dB |
Enclosure Material | Steel |
Battery Required | Yes |
Battery Included | No |
Transfer Switch Amps | 200 |
Auto Shutdown | Yes |
Engine Cooling | Air |
Dimensions L x W x H (in.) | 48 x 25 x 29 |
Reviews
Questions & Answers
Questions
-
· 11 years ago
What is Horsepower of 992( cc) 16KW Generac Gardian Standby Generator Model # 6462
-
ProductExpert25· 11 years ago
Helpful?
-
Generac· 11 years ago
Generac does not rate its automatic standby generator engines by horsepower. The engines are rated by displacement, and model number 6462 utilizes a 992cc engine.
Helpful?
-
-
· 12 years ago
WPS wants to know the Natural gas total BTU and presure needs?
-
ProductExpert23· 12 years ago
This Generac Guardian Air-Cooled Standby Generator will require 312,000 BTU/hr. and 3.5-7” inches water column when operating on a natural gas fuel source at full load.
Helpful?
-
Generac· 12 years ago
Per the unit’s owner’s manual and specifications sheet, Generac’s 16kw Guardian Series automatic standby generator, model number 6462, will require 312,000 btu/hr, and 3.5-7” inches water column, when operating on a natural gas fuel source at full load.
Helpful?
-
-
· 10 years ago
How long does it take for this generator to come online when there is a power failure?
1 answer-
ProductExpert25· 10 years ago
The Generac Guardian Air-Cooled Standby Generator comes with an Automatic Transfer Switch that constantly monitors power supply and when it detects a loss of power it starts the generator and automatically switches to restore power in the home within 30 seconds.
Helpful?
-
-
· 11 years ago
Does the transfer switch interface with the Smart Management Module?
How is the SMM wired into the electrical system?
1 answer-
ProductExpert12· 11 years ago
The included 200 Amp Service-Rated Automatic Transfer Switch, Model# 6462 is compatible with the smart management module. To ensure proper installation we recommend contacting a certified electrician in your area.
Helpful?
-
-
· 11 years ago
Does the tranfer switch have only a certain number of circuits that I choose or does it simply power the the entire panel box at one time?model#6462
1 answer-
ProductExpert11· 11 years ago
The transfer switch included with this standby generator doesn't have any circuits. It will tie directly into your home’s main panel.
Helpful?
-
-
· 11 years ago
How many breakers are there in the 200 Amp transfer case?
1 answer-
ProductExpert40· 11 years ago
The 200 amp transfer switch which comes with this stand-by generator is a whole house transfer switch so it does not have individual circuit breakers for the individual circuits in the house.
Helpful?
-
-
· 11 years ago
what color is the composite mounting pad ?
1 answer-
ProductExpert6· 11 years ago
The composite mounting pad is black.
Helpful?
-
-
· 11 years ago
Is it necessary to get any special permits to install? Also would I need to contact both a plumber and electrician to hook up the generator?
1 answer-
ProductExpert23· 11 years ago
Please contact a licensed plumber and certified electrician for your installation needs. They will be able to confirm if any special permits are required for installation in your area.
Helpful?
-
-
· 12 years ago
Smart Switch
Is the smart switch a load center with breakers or is it a switch only?
1 answer-
ProductExpert19· 12 years ago
This transfer switch doesn't have any circuits. It will tie directly into your home’s main panel.
Helpful?
-
-
· 12 years ago
CaN THE GENERATOR BE TURNED ON AND OFF MANUALLY IF THE MAIN POWER IS OFF
1 answer-
ProductExpert19· 12 years ago
This generator can be started manually. It's designed to automatically start in the event of a utility outage, so it's recommend to keep the unit in the AUTO position to ensure that it will be ready to run when utility power is lost.
Helpful?
-
Accessories We Recommend
This is a carousel with auto-rotating slides. Activate any of the buttons to disable rotation. Use Next and Previous buttons to navigate, or jump to a slide with the slide dots.
Warranty
Manufacturer's Warranty
5 year limited warranty
Compare with Most Popular in Home Standby Generators
See All Home Standby Generators
See All Generac Home Standby Generators
Currently Viewing This Product
- $6662.42
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
Item # 88805
$18,248.31Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
- $5747.50
Shipping:
Free shipping (lower 48 states) - Factory shippedHeavy/large item. Lift gate service available.
Store Pickup:
Not available - online only
Specifications
120/240
120/240
120/240
120/240
16
20
30
20
16
18
30
18
66.6
84
125
84
Multi-Fuel
Dual Fuel - Natural Gas and Propane
Dual Fuel - Natural Gas and Propane
Dual Fuel - Natural Gas and Propane
Generac
Cummins
Cummins
Cummins
OHVI
QSJ999
QSJ2.4
QSJ999
992 cc
999 cc
2,400 cc
999 cc
66 dB
65 dB
65 dB
65 dB
Steel
Aluminum
Aluminum
Aluminum
Yes
Yes
Yes
Yes
No
No
No
No
200
200
-
-
Yes
Yes
Yes
Yes
Air
Yes
Liquid
Yes
48 x 25 x 29
34.125 x 36.0 x 27.3125 in
94.0 x 34.0 x 45.5 in
34.125 x 36.0 x 27.3125 in
-
20
30
20
-
18
30
18
-
Automatic and Manual
Automatic and Manual
Automatic and Manual
-
Yes
Yes
Yes
-
60
60
60
-
<5%
<5%
<5%
-
596.0000 lb
1231.0000 lb
531.0000 lb
-
-
Yes
Yes
-
-
Yes
Yes




