Trane OEM VAL09029 J-Series Slow-Opening 24V Gas Valve 1/2" NPT Replacement for AD/AU Furnaces

The Trane VAL09029 is an OEM ServiceFirst "J" Series slow-opening gas valve (24V, 1/2" inlet/outlet) designed to replace original Trane and American Standard valves in compatible furnaces.

This factory-equivalent gas valve restores controlled fuel flow for many Trane and American Standard furnace models. Built to the same specifications as the original part, it supports a slow-opening action and 24-volt control for reliable ignition performance. If your furnace lists any of the superseded part numbers or appears in the AD/AU model lists, this valve is a direct-fit option that keeps systems operating to manufacturer intent.

Which furnaces and part numbers is the VAL09029 compatible with?

This valve replaces several legacy part numbers and is commonly installed in a wide range of AD- and AU-series Trane and American Standard furnaces. Check your furnace model and serial details before ordering to confirm fitment.

• Replaces VAL4854, VAL-4854, VAL04854, VAL6968, VAL-6968, VAL06968, VAL-9029, VAL9029, VAL07732, VAL-7732, VAL7732.
• Common in AD models such as ADC040C924B8, ADC060C936BA, ADC100C948BA and many ADD-series models.
• Common in AU models including AUD1B060A9361AA, AUD1B080A9481AA, AUD1C100A9601AA among others.
• Refer to model lists or your furnace serial plate; older 80% furnaces (040 & 060) with serial 9011 or older may need an additional kit (COV04012) for first-time change-out.

How does this valve perform and what are the key specifications?

The VAL09029 is a slow-opening gas valve that uses a 24-volt control signal and 50/60 Hz power compatibility. It features 1/2"-14 NPT inlet and outlet fittings and is built to meet OEM tolerances for safe, predictable operation when installed correctly.

• Type: Gas, slow opening
• Voltage: 24V AC control, 50/60 Hz compatible
• Connections: 1/2"-14 NPT inlet and outlet
• Series: "J" Series OEM ServiceFirst component

What should I know about installation and compatibility notes?

Installation should be performed by a qualified HVAC technician following manufacturer procedures and local codes. Some furnace variants require an additional conversion or mounting kit for a proper retrofit, so verify your serial number and model designation first.

• For first-time replacements on certain 80% 040 & 060 furnaces (serial 9011 or older), order COV04012 as well.
• Use KIT09419 where indicated for specific superseded installs.
• Confirm electrical connections, gas piping torque, and leak testing after installation.
• Images on listings are illustrative; the physical item may differ slightly from photos.

Who this product is for: The VAL09029 is intended for HVAC professionals, service technicians and experienced DIYers maintaining Trane or American Standard furnaces that list the compatible AD/AU models or superseded part numbers. Choose this OEM replacement when you need a factory-equivalent gas valve to restore correct gas metering and slow-opening functionality in compatible systems; if you are unsure about compatibility, consult your furnace documentation or a certified technician before purchase.