Ao Smith 100109875 Pilot Tube Kit 24 Inch Aluminum

Product Description

The AO SMITH 100109875 is a pilot tube kit designed for use in gas heating systems where the existing pilot tubing has been damaged or is too short following a gas valve or control replacement. The kit includes 24 inches of 1/4 inch aluminum tubing and one compression fitting, providing everything needed to restore a proper pilot gas supply line. Licensed plumbers and HVAC technicians install this kit as a field repair solution, eliminating the need to source tubing and fittings separately. It is a straightforward replacement component suited for residential and light commercial water heater and heating appliance service work.

This kit is intended for heating applications where the pilot supply line must be extended or replaced. Common scenarios include situations where a control valve swap leaves the original pilot tubing too short to reach the new valve connection, or where existing tubing has developed kinks, cracks, or corrosion damage. The 24-inch length provides adequate reach for most standard service configurations, and the included compression fitting allows a secure, leak-resistant connection to the pilot valve outlet.

Key Features

• Includes 24 inches of 1/4 inch aluminum pilot tubing
• One compression fitting included for a secure, leak-resistant connection
• Aluminum construction is lightweight and compatible with low-pressure pilot gas circuits
• Designed for field repair when original tubing is damaged or too short after control replacement
• Provides a complete kit with tubing and fitting in one package

Compatibility

Designed as an OEM-style replacement pilot tube kit for residential and light commercial gas heating appliances requiring 1/4 inch pilot supply tubing with compression-style connections.

Installation Notes

Installation should be performed by a licensed HVAC technician or plumber. Shut off the gas supply and allow the appliance to cool completely before disconnecting any pilot tubing or gas fittings. Follow all applicable local codes and manufacturer guidelines when routing and securing the pilot tube to avoid contact with hot surfaces or sharp edges. After installation, test all connections for gas leaks using an approved leak-detection solution before returning the appliance to service.

Technical Specifications

• Material: Aluminum Tubing
• Tubing Length: 24 inches
• Tubing Diameter: 1/4 inch
• Fittings Included: 1 compression fitting
• Application: Heating

Standard Information

• Brand: AO SMITH
• Manufacturer Part Number: 100109875