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Briggs & Stratton  |  SKU: 040757
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18kW Briggs & Stratton PowerProtect+ Standby Generator - 120/240V, Dual Fuel (LP/NG), Vanguard Engine, 7-Year Warranty - Model 040757

$6,017.00
You’ll Always Reach a Real Human Here. Please talk with Kevin About Your Standby Generator?

Kevin's Bio: Kevin brings over 40 years of hands-on experience in the HVAC industry, making him a trusted leader in heating and cooling solutions. Originally from Port Arthur, Texas, he has built his career serving customers across the Golden Triangle, Houston, and Austin regions.

As the driving force behind AC Units for Less, Kevin is committed to delivering reliable, high-quality HVAC products at competitive prices. His deep industry knowledge and customer-first approach ensure that homeowners and businesses receive the best solutions for their needs.

Beyond his professional work, Kevin is actively involved in his church and local community. He is passionate about giving back, regularly volunteering his time to support disadvantaged individuals and the homeless.
Call Us: 409-757-8330 Email Us

What's in the box

  • 18kW Briggs & Stratton PowerProtect+ Standby Generator - 120/240V, Dual Fuel (LP/NG), Vanguard Engine, 7-Year Warranty - Model 040757

  • Product Specs

  • Product Brochure

  • Parts Manual

  • Limited Warranty (ONLY VALID IF INSTALLATION DONE BY LICENSED CONTRACTOR)

Need help with choosing a system or have other questions? Talk with one of our trusted HVAC professionals today! 678-535-7176

Email us at : sales@acunitsforless.com

Call us at : 678-535-7176

 Physical Address : Unit 1284, 2210 Holly Springs Parkway, Holly Springs, Georgia 30142, United States
  • Factory Warranty
  • Secure Checkout
  • 60-Day Returns*
  • Pro Support
  • Authorized Dealer

Tags: 040757

Shipping Policy

Once you place an order on AC units for less, we will promptly reach out to express our gratitude for your purchase and address any inquiries you may have. Our team will also review your order with you to ensure that you have selected the right equipment for your specific needs.

Order Process

Our order process includes a handling or production time in addition to the transit time. Delivery time = handling time + transit time.

Handling Time

All the products undergo a production process, so there will be a handling time of 2–3 business days from Monday to Friday. If your order is placed and payment is received after 2 p.m., then we will process the order the next business day.

Transit Time

Our shipping providers take 3-4 business days to deliver the order. It's an estimate, so there might be a delay.

Shipping Providers

We primarily use UPS or FEDEX for our deliveries. However, we reserve the right to use other carrier services as required to ensure efficient delivery. After an order ships, the shipping carrier will contact customers to coordinate the delivery schedule. 

Once an order has been processed and shipped, it's important to note that the shipping address cannot be altered. Items designated for pickup at the terminal will only be released to the individual listed on the shipping label. A valid driver's license and a signature will be required for the release of the shipment. We adhere strictly to this policy, with no exceptions.

Shipping Rates

We offer free shipping on all orders except for Flat Bed Shipping or Oversized items. Flat Bed Freight Shipping applies to units larger than 7.5 tons. These items will be delivered via flat bed truck and may require additional delivery coordination. Flat rate charges will be shown at checkout for eligible item. Hot Point PTAC items if ordered under 8 Units different freight is charged

Damages and shipping issues

At ACUnitsForLess.com, we are committed to providing our customers with a superior buying experience. We offer free crating to safeguard your equipment during transit, thus eliminating any concerns regarding damage. When you compare our shipping policy to that of our competitors, you'll notice the difference. Customers are not held accountable for any damage to their orders. 

Please make your purchase with confidence, knowing that we will ensure you receive the correct equipment that is brand new and in perfect condition.

How do I handle a return shipment?

You may return your unopened order within 60 days for a refund, minus shipping costs and a 10% restocking fee. Customers will be responsible for return shipping costs. Please keep your original box for shipping.

Cancellation

All orders cancelled after 6 hours from the confirmation email will follow the  return process,  whether or not your order has been shipped. If your order has shipped, you (the buyer) will also be responsible for return shipping charges. Refunds will be issued to the original credit card.

However, if you cancel the order before 6 hours, we will refund your full money.

To process the cancellation, please call us at +1  678-535-7176. We will not be available on Saturday and Sunday, so if somehow you have purchased a product on these days, then contact us on Monday before 3 pm.

If you need any help, feel free to contact us

Address : Unit 1284, 2210 Holly Springs Parkway, Holly Springs, Georgia, 30142, United States
E-Mail: sales@acunitsforless.com
Phone: +1  678-535-7176
Customer Service: Monday to Friday between 9:00 am to 5:00 pm.

Return Policy

If you are not entirely happy with your purchase, you can return your item/s within 60 days of delivery for a full refund of the original payment.

Once we have received the product(s) and, if appropriate, any packaging, a refund will be credited to the payment card account within two weeks; please note that it may take up to 3 days for your bank to credit your account. We are not liable and cannot take responsibility for any bank charges you may incur during the refund process.

Damages and issues

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right. In this case, we will cover the cost of return shipping as well as we will not charge any restocking fee.

Exchanges

The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item. The cost of return shipping is the responsibility of the customer if you want to Exchange. Also we will charge 25% restocking fee.

Return Eligibility

Your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging to be eligible for a return. You’ll also need the receipt or proof of purchase.

Non-returnable items

The following items are not eligible for return:

  • Items that weren't returned within 60 days from the date the customer received the item
  • Items that have been used or damaged by the customer
  • Items that are not in their original packaging
  • Items that do not have all tags and accessories
  • Unfortunately, we cannot accept returns on sale items or gift cards.
  • Items that are consumable and  other wise stated cannot be returned examples are parts, compressors, misc items
  • Special order units
  • Custom-configured products
  • Commercial Units 
  • Consumable parts 
Return Costs

The cost of return shipping is the responsibility of the customer, except in the case of items that were damaged in transit. In that case, we will cover the cost of return shipping.

Restocking Fee

We charge 25% Restocking Fee, except product got damaged by carrier.

To start a return, you can contact us at sales@acunitsforless.com. If your return is accepted, we’ll send you a return shipping label and instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

Cancelled Orders

An order that has shipped cannot be cancelled. If you refuse an order which has already been shipped, not due to damage, you will be responsible for paying an ORDER RETURN FEE. We incur a fee from the freight carrier to return items that have been shipped, this fee is dependent on the item refused and the destination location.

Built-to-Order Items

There are no returns allowed for products which have been specially built for you and shipped by the manufacturer. These items are not routinely stocked at our warehouse and therefore cannot be returned.

Final Sale Policy

 By placing an order, the purchaser expressly acknowledges and agrees to the following terms:

1. No Returns or Exchanges
Final sale items are not eligible for return, exchange, substitution, or store credit for any reason, including but not limited to dissatisfaction, incorrect selection, incompatibility, or change of mind.

2. No Refunds
All sales of final sale items are final and non-refundable. Once an order is placed, it cannot be canceled, modified, or refunded.

3. Assumption of Risk
The purchaser assumes full responsibility for determining product suitability, compatibility, and compliance with applicable codes, regulations, and intended use prior to purchase.

4. Condition and Disclaimer
Final sale items are sold “AS IS” and “WITH ALL FAULTS” with no representations or warranties, express or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement, except where prohibited by law.

5. Shipping and Damage Claims
Any damage occurring during transit must be reported in writing within 48 hours of delivery with supporting photographs. Failure to report within this period constitutes acceptance of the product.

6. Chargebacks and Disputes
The purchaser agrees not to initiate any chargebacks or payment disputes related to final sale items. Any chargeback initiated in violation of this policy may be contested with the payment processor using this agreement as evidence.

7. Severability
If any provision of this policy is deemed unenforceable under applicable law, the remaining provisions shall remain in full force and effect.

If you need any help, feel free to contact us

Address: Unit 1284, 2210 Holly Springs Parkway, Holly Springs, Georgia, 30142, United States
E-Mail: sales@acunitsforless.com
Phone: +1  678-535-7176
Customer Service: Monday to Friday between 9:00 am to 5:00 pm.

Refund Policy

We provide a 60-day return policy for your convenience. To initiate a return, it is essential that the items remain unused and in their original manufacturer's packaging. When returning the equipment, please ensure that you reuse all shipping materials that were initially used to protect the equipment during shipment.

We will provide the return label.

Upon receiving your return, we will issue a refund for the full order amount, minus the return shipping cost and a 15% restocking fee.

Final Sale Policy

 By placing an order, the purchaser expressly acknowledges and agrees to the following terms:

1. No Returns or Exchanges
Final sale items are not eligible for return, exchange, substitution, or store credit for any reason, including but not limited to dissatisfaction, incorrect selection, incompatibility, or change of mind.

2. No Refunds
All sales of final sale items are final and non-refundable. Once an order is placed, it cannot be canceled, modified, or refunded.

3. Assumption of Risk
The purchaser assumes full responsibility for determining product suitability, compatibility, and compliance with applicable codes, regulations, and intended use prior to purchase.

4. Condition and Disclaimer
Final sale items are sold “AS IS” and “WITH ALL FAULTS” with no representations or warranties, express or implied, including but not limited to any implied warranties of merchantability, fitness for a particular purpose, or non-infringement, except where prohibited by law.

5. Shipping and Damage Claims
Any damage occurring during transit must be reported in writing within 48 hours of delivery with supporting photographs. Failure to report within this period constitutes acceptance of the product.

6. Chargebacks and Disputes
The purchaser agrees not to initiate any chargebacks or payment disputes related to final sale items. Any chargeback initiated in violation of this policy may be contested with the payment processor using this agreement as evidence.

7. Severability
If any provision of this policy is deemed unenforceable under applicable law, the remaining provisions shall remain in full force and effect.

genuine_parts

IMPORTANT: HVAC and Water Heater parts and accessories should only be installed by qualified technicians. Failure to understand and follow the manufacturer’s installation and use instructions may result in fire or explosion, electric shock, property damage, injury or loss of life. It is your responsibility to seek professional advice when installing and using these parts and accessories.

Briggs & Stratton 18kW PowerProtect+ Standby Generator – Whole-Home Backup Power with the Best Warranty in the Industry

The Briggs & Stratton 18kW PowerProtect+ Standby Generator (Model 040757) delivers automatic whole-home backup power for medium to large homes — engineered to restore electricity within seconds of a grid failure and keep your HVAC, refrigerator, lighting, sump pump, and home electronics running without interruption. Backed by the industry's longest and most comprehensive standard warranty at 7 full years of parts, labor, and travel coverage, this is the generator you buy once and never worry about again.

Powered by a Briggs & Stratton Vanguard® V-twin commercial-grade engine running at 3,600 RPM with full pressure lubrication, the 040757 is built for reliable, continuous standby performance through years of service and extended outage events. Natural gas and liquid propane are both fully supported — connect to your existing home gas line for continuous fuel supply with no tanks to fill, or run on LP for maximum flexibility in areas without gas service.

Exclusive Front-Facing Exhaust
Only Briggs & Stratton offers standby generators designed to direct exhaust away from your home and landscaping. The front-facing exhaust design on the 040757 is both safer and more versatile — enabling installation closer to your home with minimal disruption to your exterior and landscaping, in locations where competing generators simply cannot be placed.

Best-in-Class Motor Starting Power
The 040757 is designed to start a 5-ton central air conditioner with ease — the single most demanding startup load in a typical home. Competing generators in this class frequently struggle with AC startup; the PowerProtect+ handles it without hesitation, delivering best-in-class motor starting power that ensures your most critical systems come on immediately during an outage.

EnergyTrak™ Integrated Remote Monitoring
The built-in EnergyTrak™ app lets you monitor your generator's status from anywhere — and goes further than basic monitoring by enabling your dealer to remotely troubleshoot and diagnose issues without an in-person service call. This means faster resolution times and less downtime when service is needed.

Eco-Cise™ 16-Second Weekly Test Mode
The automatic 16-second weekly exercise cycle verifies the generator is ready for the next outage while minimizing noise and fuel consumption — a significant improvement over the longer, louder exercise cycles on competing units.

Key Specifications

Spec Detail
Standby Rating 18 kW
Voltage 120/240V, Single-Phase
Fuel Type Natural Gas / Liquid Propane (Dual Fuel)
Engine Vanguard® V-Twin, OHV, Commercial-Grade
Engine Speed 3,600 RPM
Lubrication Full Pressure
THD < 5%
Sound Level (Low Idle) 64 dB
Sound Level (Normal Operation) 68 dB
Operating Temperature Range -20°F to 104°F
Exhaust Design Front-Facing (exclusive)
Weekly Exercise Mode Eco-Cise™ 16-Second Test Mode
Remote Monitoring EnergyTrak™ (integrated app)
Controller LED Display with Fault Code Diagnostics
Enclosure Corrosion-Resistant Aluminum, Angled Louvers
Certifications UL, cUL
Engineered & Assembled USA
Warranty 7-Year Parts, Labor & Travel

Enhanced Weather Protection Enclosure
The redesigned PowerProtect+ enclosure features robust angled louvers and improved protection from moisture, dust, and vibration — engineered for maximum durability and longevity in the harshest outdoor environments. The corrosion-resistant aluminum construction with enhanced weather sealing means this generator looks and performs like new years after installation, even in coastal, high-humidity, or extreme-weather environments.

7-Year Warranty — The Best in the Industry
The PowerProtect+ 040757 comes with a 7-year comprehensive standard warranty covering parts, labor, and travel — with no out-of-pocket costs for covered repairs, valued at up to $849. This warranty is the longest and most comprehensive in the residential standby generator category, outlasting Generac's 5-year and Kohler's 5-year warranties by two full years. Unlike competitor warranties that reduce coverage over time, Briggs & Stratton's 7-year warranty maintains full parts, labor, and travel coverage for the entire term.

Model: 040757
Warranty: 7-Year Parts, Labor & Travel

FAQ

What can the Briggs & Stratton 18kW 040757 power in my home?
The 040757's 18kW output is sized for medium to large homes and supports your central air conditioner, furnace or heat pump, refrigerator, freezer, sump pump, lighting, televisions, computers, and other essential appliances simultaneously. It is designed to handle a 5-ton AC unit — the largest and most demanding residential HVAC load — with best-in-class motor starting power.

How does the 7-year warranty compare to Generac and Kohler?
The PowerProtect+ 040757 carries a 7-year comprehensive warranty covering parts, labor, and travel for the full term — two years longer than Generac's 5-year and Kohler's 5-year warranties. Competitor warranties also reduce labor and travel coverage in later years; the Briggs & Stratton warranty maintains full coverage throughout. This is the longest standard warranty in the residential standby generator industry.

What fuel does the 040757 use and which is better — natural gas or LP?
The 040757 runs on either natural gas or liquid propane vapor. Natural gas connects to your existing home gas line for unlimited, uninterrupted fuel supply — the best choice for most urban and suburban homeowners. Liquid propane delivers slightly higher output and is the better choice for rural properties without natural gas service. Both fuels are fully supported without any hardware conversion required.

How close to my house can the 040757 be installed?
The exclusive front-facing exhaust design directs exhaust away from your home, enabling installation closer to your home and landscaping than competing generators. Always follow the installation manual and local code requirements, including carbon monoxide detector installation, for precise minimum clearance distances.

Does the 040757 start automatically during a power outage?
Yes. When paired with a compatible automatic transfer switch (ATS), the 040757 continuously monitors utility power and starts automatically within seconds of detecting an outage — restoring power to your home with no manual intervention required. An ATS is required for automatic operation and is sold separately.

 

FAQ's

Will I see any hidden fees at checkout?

We're transparent about pricing! All costs displayed on our website are final-there are no surprise charges added during checkout or installation. We clearly itemize all components (unit, installation kit, optional accessories, etc.) so you know exactly what you're paying for. NOTE: That taxes and shipping may apply to some products depending on your location and order contents. If you have questions about any specific charge on your order, our customer service team is happy to explain it in detail. Reach out to us at sales@acunitsforless.com or via Live Chat.

Which system is better Gas system or Heat Pump system? (Video)

Heat Pump System:
Heats and cools your home using electricity and outdoor air. More energy-efficient, lower operating costs, environmentally friendly, and works well in moderate to warm climates. Qualifies for rebates and tax credits.

Gas System:
Uses natural gas for heating and requires a separate air conditioner for cooling. Better for extreme cold climates where heat pumps are less efficient. Higher fuel costs but may have lower upfront equipment expenses.

Best choice depends on: Your climate (heat pumps excel in Georgia), budget for upfront costs, long-term energy savings goals, and environmental priorities. Heat pumps typically save more money over time through lower utility bills. Contact our team for a personalized recommendation based on your home and location.

How do I know I am choosing the appropriate system?

The best way to ensure you've chosen the right system is to match it with your home's cooling and heating needs. Consider your home's square footage, climate, insulation, and the number of zones you want to control. You can look at the sizing guide here, and our support team can help you narrow down options based on your specific situation. If you're unsure, we recommend consulting with a professional HVAC technician who can perform a detailed load calculation for your home.

Should I choose a Split System or a Packaged System for my home? (Video)

Split System: Features separate indoor and outdoor units ideal for homes with basements or crawlspaces. Offers higher SEER ratings, better efficiency, and more customization for placement.

Packaged System: Contains all components in one outdoor unit, perfect for smaller homes or limited indoor space. Easier to install with lower maintenance needs.

Quick decision: Have indoor space? Choose split for superior efficiency. Limited space? Choose packaged.

What's the best way to calculate the correct capacity and tonnage for my home?

HVAC sizing is measured in tons, where one ton equals 12,000 BTUs of cooling capacity. While you can estimate using square footage (roughly 600 square feet per ton for residential homes), the most accurate method is a professionalManual J load calculationthat considers your home's insulation, orientation, windows, climate, and occupancy patterns.

Tonnage => BTU/Hour
1 ton => 12,000 BTU
1.5 ton => 18,000 BTU
2 ton => 24,000 BTU
2.5 ton => 30,000 BTU
3 ton => 36,000 BTU
3.5 ton => 42,000 BTU
4 ton => 48,000 BTU
5 ton => 60,000 BTU

Home Size (Sq. Ft.) => Recommended Tonnage
750–1,000 => 2 tons
1,050–1,400 => 2.5 tons
1,450–1,700 => 3 tons
1,750–1,900 => 3.5 tons
1,950–2,200 => 4 tons
2,250+ => 5 tons

Important: Undersizing leads to inadequate cooling; oversizing wastes energy and money. When in doubt, consult a professional. Reach out to us at sales@acunitsforless.com or via Live Chat.

What's the best way to calculate the correct capacity and tonnage for my home for multiple units?

If you're planning multiple units (for a ductless mini-split system or zoned setup), calculate the cooling needs for each zone or room separately using the same Manual J methodology. Add the tonnage requirements for each area to determine your total system capacity. For example, if your master bedroom is 800 sq. ft. (requiring 1.5 tons) and your living room is 1,200 sq. ft. (requiring 2 tons), you'd want a 3.5-ton system or a multi-zone setup with smaller indoor units. Our team can help you design a custom multi-zone layout based on your home's layout and needs.

Information regarding Trane Residential Systems:

Currently due to regulations, we are only selling and shipping Trane Residential units in the state of Georgia.

What is SEER and SEER2?

SEER stands for Seasonal Energy Efficiency Ratio-it measures how efficiently an air conditioning or heat pump system operates over an entire cooling season.

SEER2 stands for Seasonal Energy Efficiency Ratio 2-it's the updated, more accurate standard introduced in 2023. SEER2 provides a more realistic assessment of real-world performance by testing at various load levels and temperature conditions.

What is the difference between SEER and SEER2? (Video)

The key difference is how the systems are tested.

SEER testing used fixed temperature conditions and didn't fully account for the external static pressure in typical duct systems.

SEER2 testing is more comprehensive-it accounts for varying temperatures (65°F to 104°F), includes partial-load efficiency testing to mimic real-world fluctuating demands, and uses proper duct system static pressure to prioritize furnace blower efficiency.

Important to know:SEER2 ratings are typically 4–7% lower than SEER ratings for the same system because the testing is stricter and more realistic. For example, a 16 SEER system might have a SEER2 rating of around 14. Don't compare old SEER numbers directly to new SEER2 ratings-they use different standards.

Are there any rebate programs available?

Yes! The Home Energy Improvement Program through Georgia Power offers incentives for qualified customers in the state of Georgia purchasing high-efficiency HVAC systems like ductless mini-split heat pumps or heat pump water heaters. Our salesperson share incentive details at purchase to help you save on premium equipment. Additional rebates may be available through your local utility company or federal programs-visit Energy.gov to check your area. Ask our team for your AHRI certificate to submit rebate applications.

Note:To qualify, you must be a Georgia Power customer.

Where can I get an AHRI certificate?

You can find the AHRI certificate on the AHRI website here.

How to find a compatible split system?

For split systems, your indoor unit must be properly matched with your outdoor unit (condenser) to achieve the rated efficiency and ensure system longevity. You can always visit the AHRI website and use their AHRI Matchup tool to find a compatible system. The best way to find help is to reach out to us via Live Chat or email sales@acunitsforless.com.

What is the R-32 refrigerant? (Video)

R-32 is a single-component, low-GWP refrigerant used in modern HVAC systems as an eco-friendly alternative to R-410A. It has a Global Warming Potential of 675-one-third lower than R-410A (GWP 2,088)-and offers zero ozone depletion potential. R-32 delivers approximately 10% better energy efficiency and improved heat transfer, requires 30% less refrigerant charge, and has been safely used in over 160 million units worldwide since 2012. It's classified as A2L (mildly flammable) and represents the next generation of environmentally sustainable cooling technology.

Why choose R-454B refrigerant? (Video)

R-454B is the next-generation, environmentally friendly refrigerant with the lowest Global Warming Potential (GWP of 466) compared to R-32 and R-410A. It maintains high efficiency, meets current EPA regulations, and ensures your system remains compliant for years to come. Choosing R-454B means investing in future-proof technology that's better for the environment and your wallet.

Why did we stop selling R-410A refrigerant systems?

Effective January 1, 2025, the EPA enacted a regulation prohibiting manufacturers from producing or importing new HVAC systems using R-410A. This is because R-410A has a very high Global Warming Potential (GWP) of 2,088-meaning it contributes significantly to climate change if released into the atmosphere.

PRODUCT INFORMATION DISCLAIMERS

Safety Liability Notice

We are not liable for any injuries, damages, or losses resulting from improper service or installation of our products. While we strive to provide reliable and high-quality HVAC products, any issues arising from improper handling, installation, or maintenance are the sole responsibility of the installer or service provider. Customers are encouraged to engage qualified professionals for installation and servicing to ensure safety and optimal performance. By purchasing and using our products, customers agree to hold The Acunitsforless Company harmless from any liability related to improper service or installation. It is essential to follow all manufacturer guidelines, industry standards, and local building codes to mitigate risks and ensure safe operation.

Installation Disclaimer

Please note that all installations should be performed by a licensed and experienced HVAC professional. Improper installation may result in equipment malfunction, reduced performance, increased energy consumption, and potential safety hazards.

Furthermore, it is essential to understand that any installation not conducted by a qualified HVAC professional may result in the voiding of warranty coverage. Manufacturers typically require installations to be carried out by certified technicians to uphold warranty terms and conditions.

By choosing to have your HVAC systems installed by a qualified professional, you not only protect your investment but also ensure the optimal performance and safety of your heating, ventilation, and air conditioning systems while maintaining warranty coverage.

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