Description
The York S1-028-18585-000 is an OEM replacement collector box gasket designed for 6-tube furnace heat exchanger applications. This gasket provides a critical airtight seal between the collector box and the heat exchanger tubes, preventing flue gas leaks and ensuring safe, efficient furnace operation.
Product Overview
Proper sealing at the collector box is essential for maintaining combustion integrity and protecting indoor air quality. The S1-028-18585-000 gasket is engineered to York’s original specifications, delivering a precise fit that eliminates gaps and maintains the pressure boundary required for safe venting of combustion gases.
Key Features
- OEM York replacement part — engineered for exact fit and performance
- Designed for 6-tube collector box configurations
- Maintains airtight seal to prevent flue gas bypass
- Supports safe and efficient furnace combustion
- Direct drop-in replacement for simplified installation
- Durable gasket material rated for high-temperature furnace environments
Application
- Compatible with York furnaces utilizing a 6-tube heat exchanger collector box
- Ideal for use during routine furnace maintenance, heat exchanger inspection, or collector box replacement
- Recommended replacement any time the collector box is removed or a flue gas leak is suspected
Why Replace Your Collector Box Gasket?
A worn, cracked, or improperly seated collector box gasket can allow combustion byproducts — including carbon monoxide — to enter the living space. Replacing this gasket during service calls is a low-cost step that protects system efficiency and occupant safety.
Specifications
- Brand: York
- Part Number: S1-028-18585-000
- Component Type: Collector Box Gasket
- Configuration: 6-Tube
- Part Category: Furnace Replacement Part / Gasket & Seal







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