
Utica-Dunkirk 43300256 Coil Plate
The Utica-Dunkirk 43300256 Coil Plate is a critical blanking component designed for hydronic boiler systems. This blank tankless coil plate is engineered to seal the internal heat exchanger opening when the domestic tankless coil is removed or not utilized. Fabricated from high-grade industrial materials, it ensures a pressure-tight seal against the boiler block, preventing leaks and maintaining system head pressure. For contractors, this replacement boiler part is essential when transitioning a system to an indirect water heater or when decommissioning an integrated coil to improve efficiency.
As a genuine Utica Dunkirk part, the 43300256 provides a precise fit for compatible Utica-Dunkirk boiler models, reducing the risk of seat surface bypass or gasket failure common with generic plates. Its heavy-duty construction resists boiler corrosion and thermal stress, ensuring long-term reliability in high-temperature environments. This HVAC repair part is a standard solution for boiler maintenance professionals looking to optimize heat transfer by isolating the internal water jacket from unused heating loops.
Key Benefits:- System Efficiency: Properly seals the boiler block when the tankless coil is bypassed, focusing thermal energy on primary heating loops.
- Robust Construction: Manufactured with high-grade metal to withstand extreme thermal cycling and chemically treated boiler water.
- Precision Fit: Designed as a direct OEM replacement to ensure hole alignment and surface contact for a leak-free installation.
- Versatile Application: Compatible across multiple Utica and Dunkirk hydronic series requiring a blank coil cover.
- Why use a blank plate instead of leaving the old coil? Abandoning a leaking coil can lead to cross-contamination or pressure loss; a blank plate provides a permanent, secure seal.
- Is a gasket included with this plate? This item typically ships as the plate only; always use a new high-temp gasket (sold separately) to ensure a proper seal.
- Does this fit all Utica-Dunkirk boilers? It fits most standard residential series using a tankless coil port, but always verify your specific model number before purchase.
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.
Original: $63.66
-65%$63.66
$22.28Utica-Dunkirk 43300256 Coil Plate
The Utica-Dunkirk 43300256 Coil Plate is a critical blanking component designed for hydronic boiler systems. This blank tankless coil plate is engineered to seal the internal heat exchanger opening when the domestic tankless coil is removed or not utilized. Fabricated from high-grade industrial materials, it ensures a pressure-tight seal against the boiler block, preventing leaks and maintaining system head pressure. For contractors, this replacement boiler part is essential when transitioning a system to an indirect water heater or when decommissioning an integrated coil to improve efficiency.
As a genuine Utica Dunkirk part, the 43300256 provides a precise fit for compatible Utica-Dunkirk boiler models, reducing the risk of seat surface bypass or gasket failure common with generic plates. Its heavy-duty construction resists boiler corrosion and thermal stress, ensuring long-term reliability in high-temperature environments. This HVAC repair part is a standard solution for boiler maintenance professionals looking to optimize heat transfer by isolating the internal water jacket from unused heating loops.
Key Benefits:- System Efficiency: Properly seals the boiler block when the tankless coil is bypassed, focusing thermal energy on primary heating loops.
- Robust Construction: Manufactured with high-grade metal to withstand extreme thermal cycling and chemically treated boiler water.
- Precision Fit: Designed as a direct OEM replacement to ensure hole alignment and surface contact for a leak-free installation.
- Versatile Application: Compatible across multiple Utica and Dunkirk hydronic series requiring a blank coil cover.
- Why use a blank plate instead of leaving the old coil? Abandoning a leaking coil can lead to cross-contamination or pressure loss; a blank plate provides a permanent, secure seal.
- Is a gasket included with this plate? This item typically ships as the plate only; always use a new high-temp gasket (sold separately) to ensure a proper seal.
- Does this fit all Utica-Dunkirk boilers? It fits most standard residential series using a tankless coil port, but always verify your specific model number before purchase.
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
Product Information
Shipping & Returns
Shipping & Returns
Description
The Utica-Dunkirk 43300256 Coil Plate is a critical blanking component designed for hydronic boiler systems. This blank tankless coil plate is engineered to seal the internal heat exchanger opening when the domestic tankless coil is removed or not utilized. Fabricated from high-grade industrial materials, it ensures a pressure-tight seal against the boiler block, preventing leaks and maintaining system head pressure. For contractors, this replacement boiler part is essential when transitioning a system to an indirect water heater or when decommissioning an integrated coil to improve efficiency.
As a genuine Utica Dunkirk part, the 43300256 provides a precise fit for compatible Utica-Dunkirk boiler models, reducing the risk of seat surface bypass or gasket failure common with generic plates. Its heavy-duty construction resists boiler corrosion and thermal stress, ensuring long-term reliability in high-temperature environments. This HVAC repair part is a standard solution for boiler maintenance professionals looking to optimize heat transfer by isolating the internal water jacket from unused heating loops.
Key Benefits:- System Efficiency: Properly seals the boiler block when the tankless coil is bypassed, focusing thermal energy on primary heating loops.
- Robust Construction: Manufactured with high-grade metal to withstand extreme thermal cycling and chemically treated boiler water.
- Precision Fit: Designed as a direct OEM replacement to ensure hole alignment and surface contact for a leak-free installation.
- Versatile Application: Compatible across multiple Utica and Dunkirk hydronic series requiring a blank coil cover.
- Why use a blank plate instead of leaving the old coil? Abandoning a leaking coil can lead to cross-contamination or pressure loss; a blank plate provides a permanent, secure seal.
- Is a gasket included with this plate? This item typically ships as the plate only; always use a new high-temp gasket (sold separately) to ensure a proper seal.
- Does this fit all Utica-Dunkirk boilers? It fits most standard residential series using a tankless coil port, but always verify your specific model number before purchase.
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.












