Honeywell 386449-4 Compression Fitting

The Honeywell 386449-4 Compression Fitting is an essential OEM component for HVAC technicians performing maintenance or repairs on gas control systems. This 1/4" pilot tubing compression nut and ferrule assembly features a precision-engineered 1.15-inch overall length, ensuring a secure, leak-free connection in tight burner cavities. Designed for Honeywell Resideo gas valve accessories, this fitting is cross-compatible with the 386449-4/U part number, providing the exact factory-spec seal required for high-pressure gas control environments. This HVAC pilot burner hardware is constructed from durable brass to resist corrosion and thermal stress in standing pilot or intermittent pilot applications. It is engineered for seamless integration with Honeywell VR8200 series gas valves, along with V800, VS820, and SV9501 SmartValve systems. For contractors, utilizing this pilot line compression fitting simplifies the retrofit or replacement process, maintaining the integrity of the original equipment manufacturer's gas flow specifications without the need for field-modified parts.

• Compatible with 1/4 inch OD pilot tubing across all major Honeywell/Resideo combination gas controls.
• 1.15-inch overall length provides the necessary clearance for pilot burner assembly repairs in compact furnace or boiler cabinets.
• Single-piece nut and ferrule design ensures a leak-proof gas connection on the first seat, reducing callbacks.
• Precision threads prevent cross-threading into the gas valve pilot port, protecting expensive control modules.

Is the Honeywell 386449-4 compatible with 1/8" pilot lines?
No, this specific fitting is sized for 1/4" OD (outer diameter) tubing. If you are working with 1/8" lines, you will need the 392449 series fitting to ensure a proper seal.

Can I use this on a Honeywell SmartValve?
Yes, this component is fully compatible with SV9501, SV9502, and SV9641 SmartValve systems, as well as traditional standing pilot gas valves like the VR8300.

What are the differences between 386449-4 and 386449-4/U?
There is no functional or technical difference. The "/U" suffix simply denotes "Universal" packaging, but the thread pitch and physical dimensions remain identical.

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.