1. Industrial Generator Parts & Accessories Offers
  2. sku: 6047508190767622
  3. GENERAC O87221A

GENERAC O87221A Module O87221E 4477

O87221a Generac Module Assy #4477

( Brand: Generac ), ( Manufacturer Part Number: O87221A ), ( Model: O87221E ), ( Part Type: Module )

Review GENERAC Module Assy #4477

The Generac OHVI 4477/4477-21kW 208/240V Air-Cooled Parallel Ready Standby Generator with Model Number O87221A is a powerful and reliable solution for backup power needs in your home or business. This generator is designed to provide uninterrupted power during outages or power interruptions, ensuring that essential appliances, HVAC systems, and critical equipment continue to function.

The O87221A generator comes with a 4477 watt rated generator engine that delivers a maximum output of 21kW. It is powered by a 15 HP, OHVI engine that is known for its durability and efficiency. This engine is engineered with a cast iron cylinder liner, which provides superior protection against wear and corrosion. The OHVI design also ensures smooth, quiet operation with minimal vibration.

This generator features a parallel-ready design, which allows for easy expansion of power capacity by connecting multiple generators in parallel. This is particularly useful for larger homes or commercial applications that require more power. The O87221A also includes a transfer switch, which enables seamless transfer of power between the utility power and the generator, ensuring a safe and convenient power transition.

The O87221A generator is equipped with a heavy-duty, all-steel enclosure that provides excellent protection against the elements. It also includes a powder-coated finish that resists rust and corrosion. The generator features a large, easy-to-read control panel that displays important operation information, such as voltage, frequency, and hours run. It also includes a digital hour meter, which provides accurate and reliable tracking of engine hours.

The O87221A generator is designed for easy maintenance, with convenient access to all service points. It includes a heavy-duty, roll-cage style handle, which makes it easy to move and transport. The generator also features automatic low oil shutdown, which ensures that the engine is always protected against damage caused by low oil levels.

The O87221A generator comes with a 5-year limited warranty on the engine and a 3-year limited warranty on the alternator and other major components. It also includes a 24/7 customer support line, which ensures that you have access to expert assistance whenever you need it.

In summary, the Generac OHVI 4477/4477-21kW 208/240V Air-Cooled Parallel Ready Standby Generator with Model Number O87221A is a powerful, reliable, and efficient solution for backup power needs. With its durable OHVI engine, parallel-ready design, and easy-to-use control panel, this generator is an excellent investment for anyone who wants to ensure that their essential appliances, HVAC systems, and critical equipment continue to function during power outages or interruptions.

The Generac OHVI O87221A Module 4477 is a standby generator designed for residential use, providing backup power during outages. This generator uses a 22kW air-cooled OHVI engine and is transfer switch ready. Let's discuss some pros and cons based on its features, performance, and other aspects to help you make an informed decision.

Pros:

1. Reliable Power: The Generac O87221A can power essential appliances and systems during power outages, ensuring uninterrupted comfort and peace of mind.

2. Easy Installation: This generator comes pre-wired, making installation relatively straightforward, especially when paired with a transfer switch.

3. Quiet Operation: The O87221A operates at a relatively low noise level (68 dBA), allowing for quieter operation compared to other generators in its class.

4. Robust Design: The generator's durable construction and OHVI engine provide reliable performance and longer lifespan.

5. Automatic Voltage Regulator: The built-in Automatic Voltage Regulator maintains consistent voltage levels, ensuring optimal performance of connected appliances.

Cons:

1. Fuel Consumption: The O87221A consumes a significant amount of fuel (approximately 1.2 gallons per hour at 25% load), which can increase operating costs and the need for frequent refills.

2. Size and Weight: The generator is quite large and heavy (approximately 860 lbs), which may require additional structural considerations for proper installation and anchoring.

3. Maintenance: Regular maintenance, such as oil changes and filter replacements, is essential to ensure the generator's longevity and optimal performance.

Conclusion:

The Generac O87221A Module 4477 offers reliable backup power, easy installation, and quiet operation. However, its high fuel consumption, size, weight, and maintenance requirements may be drawbacks for some homeowners. Consider your power needs, budget, and installation site when deciding whether this generator is the right choice for you.

Recommendation:

If you require a powerful backup generator for essential appliances and systems, the Generac O87221A Module 4477 is an excellent option. However, consider the fuel consumption, size, and weight, and be prepared for regular maintenance to ensure optimal performance and longevity. Alternatively, if you're looking for a more cost-effective and low-maintenance solution, you might want to explore smaller, inverter-style generators. Ultimately, your decision will depend on your specific power requirements and budget.

Details:

Specifically, it is designed for the O87221E model.

part #: o87221a prices

  • $13.80-$35.00

specifications generatormac:

  • brand: Generac
  • mpn: O87221a
  • model: O87221e
  • part type: Module

general generatormac:

  • Business Industrial > Light Equipment Tools > Generator Parts Accessories
  • condition: New

seller generatormac:

  • # reviews: 415
  • rating: 100.0%
  • city: Culpeper, Virginia

shipping generatormac:

  • carrier: USPS
  • service: USPS Ground Advantage
  • class: Standard
  • type: Calculated
  • cost: $5.49
  • transit: 3-10 Days

returns generatormac:

  • policy: No Returns

payments generatormac:

  • credit card: Diners-club
  • wallet: Apple-pay
  • other

offer generatormac:

  • started: May 21, 2025
  • options: Ship-to-home
  • quantity: 1
  • best offers: True
  • availability: In Stock
  • sold: 0
part type: module,
category: business & industrial > generator parts accessories, sku: 6047508190767622,

Generac O87221A Is Similar To:

generatormac logo
2 offers $13.80–$35.00 USD
  • Offer #1: $13.80 price + $6.58 shipping estimate = $20.38* total. Specifically, it is designed for the model.+$6.58 shipping
  • Offer #2: $35.00 price + $4.00 shipping estimate = $39.00* total.+$4.00 shipping

Copyright © generatormac.com