Lochinvar & A.O. Smith 100277963 Gasket
HomeStore

Lochinvar & A.O. Smith 100277963 Gasket

Lochinvar & A.O. Smith 100277963 Gasket

The Lochinvar & A.O. Smith 100277963 Gasket is a critical OEM component designed for high-performance burner manifold sealing in commercial and industrial gas-fired heating systems. This ultra-high-performance burner gasket is engineered to withstand the intense thermal stress and high pressures typical of the Outdoor Crest OFN(L) 751-2001 series and compatible A.O. Smith Cyclone Mxi high-efficiency water heaters. As a veteran technician knows, maintaining a precision seal between the manifold and the burner is non-negotiable for ensuring optimal combustion efficiency and preventing hazardous gas bypass or leaks. Replacing a degraded 100277963 manifold gasket is a standard preventative measure during annual maintenance to avoid common HVAC ignition failure lockouts (such as B2-70 fault codes) and to reduce harmful emissions. This genuine OEM boiler part replaces legacy numbers GKT20121K, 100188935, and GKT20121, providing a precise fit for reliable, long-term operation in rigorous mechanical environments.

Key Benefits
  • Optimal Combustion: Ensures a gastight seal between the manifold and burner to maintain the correct fuel-to-air ratio.
  • High-Temperature Resistance: Constructed from advanced materials specifically rated for extreme heat cycles in commercial boilers.
  • Reduced Emissions: Prevents gas leakage, ensuring the unit meets factory-specified efficiency and environmental standards.
  • Direct OEM Compatibility: Replaces older part numbers including 100188935 and GKT20121 without requiring manifold modifications.
Common Questions

What are the signs that this burner gasket needs replacement?
Technicians should inspect the gasket if there is visible evidence of scorching, carbon buildup around the manifold flange, or if the unit experiences frequent rough starts or ignition failures.

Is this gasket compatible with the A.O. Smith BTH series?
Yes, this part number is frequently specified for the A.O. Smith BTH 120-250 and 300/301 series commercial water heaters where a burner-to-manifold seal is required.

Can I reuse the existing manifold gasket during a burner cleaning?
While some service manuals suggest reuse if undamaged, it is professional best practice to install a new 100277963 gasket whenever the burner assembly is pulled to ensure the integrity of the pressure seal.

This item is not eligible for free shipping.

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.

$78.68

Original: $224.80

-65%
Lochinvar & A.O. Smith 100277963 Gasket

$224.80

$78.68

Lochinvar & A.O. Smith 100277963 Gasket

The Lochinvar & A.O. Smith 100277963 Gasket is a critical OEM component designed for high-performance burner manifold sealing in commercial and industrial gas-fired heating systems. This ultra-high-performance burner gasket is engineered to withstand the intense thermal stress and high pressures typical of the Outdoor Crest OFN(L) 751-2001 series and compatible A.O. Smith Cyclone Mxi high-efficiency water heaters. As a veteran technician knows, maintaining a precision seal between the manifold and the burner is non-negotiable for ensuring optimal combustion efficiency and preventing hazardous gas bypass or leaks. Replacing a degraded 100277963 manifold gasket is a standard preventative measure during annual maintenance to avoid common HVAC ignition failure lockouts (such as B2-70 fault codes) and to reduce harmful emissions. This genuine OEM boiler part replaces legacy numbers GKT20121K, 100188935, and GKT20121, providing a precise fit for reliable, long-term operation in rigorous mechanical environments.

Key Benefits
  • Optimal Combustion: Ensures a gastight seal between the manifold and burner to maintain the correct fuel-to-air ratio.
  • High-Temperature Resistance: Constructed from advanced materials specifically rated for extreme heat cycles in commercial boilers.
  • Reduced Emissions: Prevents gas leakage, ensuring the unit meets factory-specified efficiency and environmental standards.
  • Direct OEM Compatibility: Replaces older part numbers including 100188935 and GKT20121 without requiring manifold modifications.
Common Questions

What are the signs that this burner gasket needs replacement?
Technicians should inspect the gasket if there is visible evidence of scorching, carbon buildup around the manifold flange, or if the unit experiences frequent rough starts or ignition failures.

Is this gasket compatible with the A.O. Smith BTH series?
Yes, this part number is frequently specified for the A.O. Smith BTH 120-250 and 300/301 series commercial water heaters where a burner-to-manifold seal is required.

Can I reuse the existing manifold gasket during a burner cleaning?
While some service manuals suggest reuse if undamaged, it is professional best practice to install a new 100277963 gasket whenever the burner assembly is pulled to ensure the integrity of the pressure seal.

This item is not eligible for free shipping.

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

Shipping & Returns

Description

The Lochinvar & A.O. Smith 100277963 Gasket is a critical OEM component designed for high-performance burner manifold sealing in commercial and industrial gas-fired heating systems. This ultra-high-performance burner gasket is engineered to withstand the intense thermal stress and high pressures typical of the Outdoor Crest OFN(L) 751-2001 series and compatible A.O. Smith Cyclone Mxi high-efficiency water heaters. As a veteran technician knows, maintaining a precision seal between the manifold and the burner is non-negotiable for ensuring optimal combustion efficiency and preventing hazardous gas bypass or leaks. Replacing a degraded 100277963 manifold gasket is a standard preventative measure during annual maintenance to avoid common HVAC ignition failure lockouts (such as B2-70 fault codes) and to reduce harmful emissions. This genuine OEM boiler part replaces legacy numbers GKT20121K, 100188935, and GKT20121, providing a precise fit for reliable, long-term operation in rigorous mechanical environments.

Key Benefits
  • Optimal Combustion: Ensures a gastight seal between the manifold and burner to maintain the correct fuel-to-air ratio.
  • High-Temperature Resistance: Constructed from advanced materials specifically rated for extreme heat cycles in commercial boilers.
  • Reduced Emissions: Prevents gas leakage, ensuring the unit meets factory-specified efficiency and environmental standards.
  • Direct OEM Compatibility: Replaces older part numbers including 100188935 and GKT20121 without requiring manifold modifications.
Common Questions

What are the signs that this burner gasket needs replacement?
Technicians should inspect the gasket if there is visible evidence of scorching, carbon buildup around the manifold flange, or if the unit experiences frequent rough starts or ignition failures.

Is this gasket compatible with the A.O. Smith BTH series?
Yes, this part number is frequently specified for the A.O. Smith BTH 120-250 and 300/301 series commercial water heaters where a burner-to-manifold seal is required.

Can I reuse the existing manifold gasket during a burner cleaning?
While some service manuals suggest reuse if undamaged, it is professional best practice to install a new 100277963 gasket whenever the burner assembly is pulled to ensure the integrity of the pressure seal.

This item is not eligible for free shipping.

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.

Lochinvar & A.O. Smith 100277963 Gasket | GSIstore