Lochinvar & A.O. Smith 100277758 Impeller
The Lochinvar & A.O. Smith 100277758 Impeller is a precision-engineered 4.75-inch plastic component designed for high-efficiency hydraulic systems. As the 100277758 direct replacement for 100133559, this part ensures seamless compatibility with Lochinvar boiler pump systems and A.O. Smith water heaters. For technicians servicing high-efficiency fire-tube boilers or commercial water heaters, maintaining proper fluid velocity is critical for heat transfer performance. This OEM replacement impeller is constructed from reinforced plastic, providing significant resistance to cavitation and chemical corrosion commonly found in closed-loop hydronic systems.
When executing a pump repair or routine maintenance, the 100277758 impeller is the standard for restoring original flow specifications. It is specifically balanced to minimize vibration, which prevents premature mechanical seal failure and motor bearing wear. Whether you are working on a Lochinvar Knight or Armor series unit, utilizing this genuine Lochinvar part ensures the system operates within its engineered head pressure and GPM parameters, maintaining the 95% AFUE efficiency these units are designed to deliver.
Key Benefits- Direct OEM Compatibility: Verified as the official replacement for 100133559, ensuring an exact fit without housing modifications.
- Enhanced Hydraulic Efficiency: The 4.75-inch diameter design optimizes fluid energy conversion for consistent BTU output across the heat exchanger.
- Corrosion-Resistant Construction: High-grade plastic material resists system sludge and scale buildup, extending the service life of the pump assembly.
- System Stability: Precision balancing reduces radial loads on the pump motor, maintaining quiet operation in residential and commercial mechanical rooms.
Is the 100277758 a direct fit for the discontinued 100133559?
Yes, the 100277758 is the manufacturer-designated superseding part for the 100133559 and integrates directly into the existing pump volute.
Which Lochinvar models use this 4.75-inch impeller?
This impeller is typically found in Lochinvar Knight, Noble, and Armor series boilers and water heaters that utilize specific circulating pump configurations.
Can this impeller be used in A.O. Smith commercial applications?
Yes, as an A.O. Smith cross-reference part, it is compatible with specific commercial water heating units that share the same pump platform.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Original: $659.41
-65%$659.41
$230.79Lochinvar & A.O. Smith 100277758 Impeller
The Lochinvar & A.O. Smith 100277758 Impeller is a precision-engineered 4.75-inch plastic component designed for high-efficiency hydraulic systems. As the 100277758 direct replacement for 100133559, this part ensures seamless compatibility with Lochinvar boiler pump systems and A.O. Smith water heaters. For technicians servicing high-efficiency fire-tube boilers or commercial water heaters, maintaining proper fluid velocity is critical for heat transfer performance. This OEM replacement impeller is constructed from reinforced plastic, providing significant resistance to cavitation and chemical corrosion commonly found in closed-loop hydronic systems.
When executing a pump repair or routine maintenance, the 100277758 impeller is the standard for restoring original flow specifications. It is specifically balanced to minimize vibration, which prevents premature mechanical seal failure and motor bearing wear. Whether you are working on a Lochinvar Knight or Armor series unit, utilizing this genuine Lochinvar part ensures the system operates within its engineered head pressure and GPM parameters, maintaining the 95% AFUE efficiency these units are designed to deliver.
Key Benefits- Direct OEM Compatibility: Verified as the official replacement for 100133559, ensuring an exact fit without housing modifications.
- Enhanced Hydraulic Efficiency: The 4.75-inch diameter design optimizes fluid energy conversion for consistent BTU output across the heat exchanger.
- Corrosion-Resistant Construction: High-grade plastic material resists system sludge and scale buildup, extending the service life of the pump assembly.
- System Stability: Precision balancing reduces radial loads on the pump motor, maintaining quiet operation in residential and commercial mechanical rooms.
Is the 100277758 a direct fit for the discontinued 100133559?
Yes, the 100277758 is the manufacturer-designated superseding part for the 100133559 and integrates directly into the existing pump volute.
Which Lochinvar models use this 4.75-inch impeller?
This impeller is typically found in Lochinvar Knight, Noble, and Armor series boilers and water heaters that utilize specific circulating pump configurations.
Can this impeller be used in A.O. Smith commercial applications?
Yes, as an A.O. Smith cross-reference part, it is compatible with specific commercial water heating units that share the same pump platform.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
The Lochinvar & A.O. Smith 100277758 Impeller is a precision-engineered 4.75-inch plastic component designed for high-efficiency hydraulic systems. As the 100277758 direct replacement for 100133559, this part ensures seamless compatibility with Lochinvar boiler pump systems and A.O. Smith water heaters. For technicians servicing high-efficiency fire-tube boilers or commercial water heaters, maintaining proper fluid velocity is critical for heat transfer performance. This OEM replacement impeller is constructed from reinforced plastic, providing significant resistance to cavitation and chemical corrosion commonly found in closed-loop hydronic systems.
When executing a pump repair or routine maintenance, the 100277758 impeller is the standard for restoring original flow specifications. It is specifically balanced to minimize vibration, which prevents premature mechanical seal failure and motor bearing wear. Whether you are working on a Lochinvar Knight or Armor series unit, utilizing this genuine Lochinvar part ensures the system operates within its engineered head pressure and GPM parameters, maintaining the 95% AFUE efficiency these units are designed to deliver.
Key Benefits- Direct OEM Compatibility: Verified as the official replacement for 100133559, ensuring an exact fit without housing modifications.
- Enhanced Hydraulic Efficiency: The 4.75-inch diameter design optimizes fluid energy conversion for consistent BTU output across the heat exchanger.
- Corrosion-Resistant Construction: High-grade plastic material resists system sludge and scale buildup, extending the service life of the pump assembly.
- System Stability: Precision balancing reduces radial loads on the pump motor, maintaining quiet operation in residential and commercial mechanical rooms.
Is the 100277758 a direct fit for the discontinued 100133559?
Yes, the 100277758 is the manufacturer-designated superseding part for the 100133559 and integrates directly into the existing pump volute.
Which Lochinvar models use this 4.75-inch impeller?
This impeller is typically found in Lochinvar Knight, Noble, and Armor series boilers and water heaters that utilize specific circulating pump configurations.
Can this impeller be used in A.O. Smith commercial applications?
Yes, as an A.O. Smith cross-reference part, it is compatible with specific commercial water heating units that share the same pump platform.
Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.
