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Trane Furnaces

Official Trane furnace parts

Trane furnaces are designed to keep your home warm and comfortable throughout the winter months. With powerful blowers, precise controls, and durable heat exchangers, Trane furnaces provide years of reliable performance.

Finding the right Trane furnace parts is easy at Sears PartsDirect. Browse models below or use the search bar at the top of the page to locate parts by model number, part number, or keyword. Whether you're addressing a minor issue or performing a major repair, we have the parts and resources you need to get your furnace back in top condition.

Sears PartsDirect offers genuine Trane furnace parts along with detailed diagrams and repair guides to make your DIY repairs straightforward and effective. For tips and resources on maintaining and repairing a variety of home appliances, visit our DIY repair help section. Whether you're tackling a minor fix or a more involved repair, we’re here to help you every step of the way.

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Furnaces
Frequently bought Trane parts

Parts you might be looking for

Nut NUT00873

Nut

Part #NUT00873

Replaced by #NUT0999

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Manufacturer substitution
This part replaces NUT00873. Substitute parts can look different from the original.
In Stock
$89.76
Minus Item
Qty
Plus Item
Furnace Blower Fan Motor Mounting Bracket (replaces Sup03399) SUP03399

Furnace Blower Fan Motor Mounting Bracket

Part #SUP03399

Replaced by #SUP3399

Info Icon
Manufacturer substitution
This part replaces SUP03399. Substitute parts can look different from the original.
In Stock
$10.71
Minus Item
Qty
Plus Item
Furnace Burner Igniter IGN00104

Igniter

Part #IGN00104

Replaced by #IGN00145

Info Icon
Manufacturer substitution
This part replaces IGN00104. Substitute parts can look different from the original.
In Stock
$123.14
Minus Item
Qty
Plus Item
Furnace Blower Fan Motor Mounting Bracket (replaces Sup03399) SUP00737

Support

Part #SUP00737

Replaced by #SUP3399

Info Icon
Manufacturer substitution
This part replaces SUP00737. Substitute parts can look different from the original.
In Stock
$10.71
Minus Item
Qty
Plus Item
Furnace Air Filter, 20 X 20 X 1-in FLR01248

Filter

Part #FLR01248

Replaced by #AG0450103

Info Icon
Manufacturer substitution
This part replaces FLR01248. Substitute parts can look different from the original.
In Stock
$16.51
Minus Item
Qty
Plus Item
Central Air Conditioner Contactor, 40-amp, 24-volt CTR00733

Contactor

Part #CTR00733

Replaced by #90-247

Info Icon
Manufacturer substitution
This part replaces CTR00733. Substitute parts can look different from the original.
In Stock
$42.10
12% OFF Phone Price : $48.10
Minus Item
Qty
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Popular maintenance items for Furnaces

Parts you might be looking for

Coleman Furnace Upper Door Panel 7900-7631

Coleman Furnace Upper Door Panel

Part #7900-7631
Back Order
$183.85
6% OFF Phone Price : $195.85
Minus Item
Qty
Plus Item
Furnace Inducer Vent Motor Assembly (replaces 1010975) 1013833

Furnace Inducer Vent Motor Assembly (replaces 1010975)

Part #1013833
In Stock
$269.83
$12.00 OFF Phone Price : $281.83
Minus Item
Qty
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Central Air Conditioner Heat Pump Filter Dryer 163S

Central Air Conditioner Heat Pump Filter Dryer

Part #163S
In Stock
$48.94
11% OFF Phone Price : $54.94
Minus Item
Qty
Plus Item
Furnace Door Panel, Lower 7900-7611

Furnace Door Panel, Lower

Part #7900-7611
In Stock
$108.19
10% OFF Phone Price : $120.19
Minus Item
Qty
Plus Item

Troubleshooting common Trane furnace problems

When your Trane furnace isn’t performing as expected, these resources can help you diagnose and resolve the issue:

  • Why won’t my furnace ignite?
    If your furnace isn’t igniting, it could be due to a faulty gas valve, a dirty burner orifice, or a damaged flame sensor. Check out our guide on Why your furnace won’t ignite for step-by-step troubleshooting.

  • Why isn’t my furnace blowing hot enough?
    A clogged air filter or a malfunctioning thermostat can reduce your furnace’s heating efficiency. Learn more with our guide on Why your furnace isn’t blowing hot enough.

  • Why won’t my furnace turn on?
    If your furnace won’t start, the issue could stem from an electrical problem, a faulty thermostat, or a gas supply issue. Visit our guide on Why your furnace won’t turn on.

  • Why won’t the furnace burners stay lit?
    Burners that won’t stay lit could indicate a dirty flame sensor or a faulty gas valve. For more details, check out our guide on Why furnace burners won’t stay lit.

  • How to replace the furnace flame sensor.
    The flame sensor detects the burner flame and signals the gas valve to stay open. Follow our guide on How to replace the furnace flame sensor to keep your furnace running safely and efficiently.

Commonly replaced Trane furnace parts

Keep your Trane furnace running smoothly by replacing these essential components:

  • Air filter: Keeps dust and debris out of the furnace, ensuring efficient airflow and heating performance.
  • Blower assembly: Circulates warm air through the heat exchanger and your home.
  • Thermocouple/flame sensor: Ensures safe ignition by detecting the pilot light or burner flame.
  • Hot surface igniter: Lights the burner flame to start the heating process.
  • Thermostat: Monitors and controls the furnace to maintain your desired indoor temperature.

Find reliable Trane furnace parts and expert help

Sears PartsDirect offers genuine Trane furnace parts along with detailed diagrams and repair guides to make your DIY repairs straightforward and effective.

If you prefer professional help, schedule a furnace repair appointment with Sears Home Services. Our experienced technicians can diagnose and fix your Trane furnace quickly, ensuring your home stays warm and comfortable.