Nti 84737 Burner Door Gasket Tx Models Replacement Part

Product Description

The NTI 84737 is a replacement burner door gasket designed for use with NTI TX series boilers. This gasket seals the burner door assembly on the front of the boiler combustion chamber. A proper seal at the burner door is critical for safe and efficient boiler operation. When this gasket wears out, cracks, or hardens, it can allow combustion gases to escape the firebox. This creates a safety hazard and reduces heating efficiency. Replacing a failed gasket restores the tight seal needed for correct combustion and venting. HVAC technicians and boiler service professionals rely on OEM-spec replacement gaskets like this one to return equipment to factory-rated performance. The NTI TX series is a line of high-efficiency gas-fired hot water boilers used in residential and light commercial hydronic heating systems. These boilers are known for their compact design and high thermal efficiency ratings. The burner door gasket on TX series units must withstand repeated heating and cooling cycles while maintaining a gas-tight seal. Using the correct OEM replacement part ensures proper fit and long service life. A mismatched or aftermarket gasket may not seat correctly against the boiler body and door, leading to leaks and failed inspections. This part is sold individually as a single unit. It is stocked as a nonstock item with a standard lead time, so ordering in advance of scheduled maintenance is recommended. Boiler service technicians should verify the model number of the NTI TX unit on site before ordering to confirm fitment. This gasket is an essential consumable in any planned maintenance program for NTI TX series hydronic boilers.

• OEM replacement burner door gasket for NTI TX series boilers
• Seals the combustion chamber door to prevent flue gas leakage
• Sold as a single unit, designed for direct OEM fitment

Product Highlights

The NTI 84737 burner door gasket is a direct OEM replacement for TX series boilers, providing a reliable combustion chamber seal that supports safe and efficient boiler operation during routine service and maintenance.

Product Information

Standard Information

• Brand: NTI
• Manufacturer Part Number: 84737

Technical Specifications

• Product Type: Replacement Part
• Compatible Series: NTI TX Models
• Pack Size: 1 each
• Unit of Measure: Each
• Alternate Part Number: 6000084737