Lennox 73W17 Gas Valve – 1/2 in Inlet/Outlet, 4 3/8 in Length | Lennox Industries

The Lennox 73W17 gas valve is an OEM replacement part designed to fit specific Lennox furnace configurations. With a compact footprint, it features a 1/2 in inlet and a 1/2 in outlet, and it runs at a length of 4 3/8 inches. The valve weighs about 1.32 pounds, reflecting a sturdy yet serviceable component built for routine HVAC maintenance.

Key specifications at a glance help you compare quickly. The valve is a NAT gas variant, part number 102837-01 VALVE-GAS NAT, and is manufactured by Lennox. This design supports natural gas setups and is intended to interface with compatible gas lines and control systems as part of a larger heating assembly.

Key specs at a glance

• Inlet: 1/2 in
• Outlet: 1/2 in
• Length: 4 3/8 in
• Weight: ~1.32 lbs

Compatibility and use

While exact fit depends on your model, the 73W17 valve is listed as usable with several Lennox models. This OEM part is designed to integrate with the system controls and gas supply lines specified by Lennox, potentially contributing to consistent gas flow and valve operation.

• A93UH1D045B08A01
• A95UH1D070B12S02
• A95UH1D110C16A02
• A80UH1D045A12L01 02
• A80UH1D090B1601
• 80G1UH135DP2002
• and more

Real-world scenarios

In practice, technicians may reach for this Lennox valve during routine service, replacement of a worn gas valve, or during reconfiguration of natural gas lines in compatible furnaces. The result can be a steadier response in the gas control sequence and compatibility with existing components when paired with the correct model family.

Buying guidance

Choose the original Lennox part to help preserve the intended performance of your heating system. For installation, consult the system manual or a qualified professional to verify connections and safety procedures.