4178110002 Drive Belt – What Part Fixes This Problem?
Need the replacement part? Search your model number at for guaranteed fit and fast free shipping.
Understanding the Problem
Brief explanation: The drive belt (part number 4178110002) is the rubber belt that wraps around the dryer drum and the motor pulley (and sometimes an idler pulley). Its job is to transfer motor torque to the drum so the drum tumbles. When the belt is worn, stretched, misaligned or broken, the drum will not spin properly or at all. Step-by-step diagnostic and repair instructions: 1) Confirm the symptom: Unplug the dryer and try to rotate the drum by hand. If the drum is very loose or doesn't turn freely because the belt is broken or hanging loose, the belt is likely the cause. Also note any squealing, burning rubber smell, or visible belt damage. 2) Gather tools and parts: Phillips and flat screwdrivers, nut drivers or socket set (commonly 1/4"–5/16"/7/16"), putty knife (for some models to release clips), work gloves, replacement belt 4178110002, and optionally an idler pulley or drum roller kit if worn. 3) Safety first: Unplug the dryer (or shut off the breaker) and turn off gas if it’s a gas dryer. Confirm no power present. 4) Access the belt: Depending on your dryer design, remove the lint screen and use a putty knife to release the top panel clips or remove the front panel screws to gain access to the drum. On some models you remove the front panel, on others the top and front come off together. Keep track of screws and clips. 5) Inspect the belt and related parts: Visually check the belt for cracks, frayed edges, glazing (shiny hard surface), or separation. Inspect drum glides/rollers and the idler pulley for wear or seized bearings — these commonly cause the new belt to fail quickly if not replaced. 6) Remove the old belt: If the belt is intact but loose, slip it off the motor/idler pulley and drum. If broken, remove all pieces. Note belt routing — usually the ribbed side contacts the drum and the smooth side contacts the motor pulley, with the belt routed around the drum and under/through the idler. 7) Check motor and other components: Manually spin the motor pulley and drum rollers. If you hear grinding or see wobble, replace the faulty component before installing the new belt. 8) Install the new belt (how to fix): Feed the new 4178110002 belt over the drum so the ribbed side engages the drum’s groove if present. Route the belt under/around the idler and around the motor pulley following the same path as the old belt. Apply tension by pulling the idler into place so the belt is snug on the drum. Turn the drum by hand a few rotations to confirm smooth movement and correct tracking. 9) Reassemble dryer: Reinstall the front/top panels, reconnect any wiring connectors, secure screws and clips, reinstall the lint screen. 10) Test run: Plug the dryer back in, run it empty for a short test cycle and watch/feel the drum for smooth rotation, listen for odd noises, and check for overheating or burning smell. Replacement note: If the belt fails again shortly after replacement, inspect and replace the idler pulley, drum rollers, motor bearings and check drum alignment — worn bearings or a seized idler will quickly ruin a new belt. Safety note: Always disconnect electrical power (and gas for gas dryers) before starting work. If you are uncomfortable working with appliances or if you find seized or damaged motor parts, consider hiring a qualified technician.
Common Symptoms
Dryer drum won’t tumble or tumbles intermittently, loud squealing or rubbing noises during operation, burning rubber smell, belt visibly frayed or broken.
Common Causes
- Belt wear and age — cracks, glazing or fraying until it breaks
- Belt slipped off due to misaligned drum, worn drum glides/rollers, or failed idler pulley
- Obstruction or seized motor/roller that overloads and breaks the belt
Popular Parts That Fix This Problem
These are the most common replacement parts that fix this problem. When you're ready to order, click below to find the right part at ProsourceParts.com — just search by your appliance model number for a guaranteed fit.
Helpful Repair Tip
Visually inspect the belt for glazing, cracks or missing chunks and try turning the drum by hand with the dryer unplugged — a broken or loose belt is immediately obvious because the drum will spin freely without resistance or not spin at all.
Frequently Asked Questions
How long does it take to replace a dryer drive belt?
For an experienced DIYer: 30–60 minutes. Time varies by model and whether you need to replace worn rollers or the idler pulley as well. First-time DIYers should allow extra time to carefully remove panels and document screw locations.
Can I keep using my dryer if the belt is damaged but not completely broken?
No — a worn or damaged belt can slip, overheat and create a burning smell or further damage to the motor, idler or rollers. Replace a visibly damaged belt promptly and inspect idler, rollers and motor to prevent repeat failure.
Related How-To Videos
Real DIY Repair Stories
Be the first to share your repair story!
Share Your Repair Story
Your experience helps other homeowners fix their appliances. Tell us how it went!
Can't Fix It Yourself? Find a Local Technician
It's perfectly okay to call a professional. Some repairs require specialized tools, deep teardowns, or dealing with complex systems that are better left to the pros.
Find the Right Part for Your Appliance
Don't guess — search your exact appliance model number at ProsourceParts.com to find the correct OEM compatible replacement part. They offer fast free shipping, guaranteed fit, and thousands of parts in stock.
Your Free Parts Videos
Whether your dishwasher won't drain, your dryer stopped heating, or your fridge isn't cold, we've created simple repair guides for the most common appliance problems homeowners face. Each guide explains what's going wrong, the most likely causes, and which replacement parts fix the issue. When you're ready to order, we link directly to ProsourceParts.com where you can search by model number and get the right part shipped fast.