When a home appliance breaks down, it can disrupt your routine faster than almost anything else in the house. A refrigerator that stops cooling, a washer that will not drain, or an oven that refuses to heat can throw off your entire day. In many cases, a full replacement isn’t necessary—a single component may be all that needs attention. The challenge is figuring out how to identify and purchase the correct part the first time. Understanding how appliances are labeled, what information matters, and where to shop can save you time, money, and frustration as you search for appliance parts to get your home running smoothly again.
Start by Identifying the Exact Model Number
The make and model of your appliance is the foundation of your search. While brand names are helpful, they rarely provide enough detail on their own.
Manufacturers often release multiple versions of the same appliance line with small internal differences. These design changes can affect compatibility, meaning a part that looks identical may not fit or function correctly.
You can typically find the model number on a sticker or metal plate attached to the appliance. Common locations include inside the door frame of washers and dryers, behind the vegetable drawers in refrigerators, under cooktop burners, or along the back panel. Write the full model and serial number down carefully; even one missing letter or number can lead you to the wrong component.
Diagnose the Problem Before Ordering Anything
Before purchasing anything, determine whether the suspected part is truly the issue. Modern appliances often show error codes, which you can look up in the owner’s manual or brand support documentation. Even without error codes, symptoms can be revealing: unusual noises, leaking, failure to power on, or inconsistent performance all point toward specific components.
Basic troubleshooting steps—checking power, resetting breakers, cleaning filters, or clearing visible obstructions—can prevent unnecessary purchases. If you are unsure, consider consulting a technician or using diagnostic videos from trusted sources. A clear diagnosis ensures you are not replacing parts that are still working while the real cause remains unresolved.
Compare OEM vs. Aftermarket Components
Once you know the part you need, you will usually find two broad options: Original Equipment Manufacturer (OEM) parts and aftermarket parts. OEM components are produced by the same company that built your appliance. They are designed to match specifications exactly, often offering the best reliability and performance. They are also typically more expensive.
Aftermarket components are produced by third-party manufacturers. Many are high quality and fully compatible, but quality can vary between brands. Read reviews, check warranties, and purchase only from trusted sellers. If your appliance is still under warranty, OEM parts are often required to keep that warranty valid. Otherwise, aftermarket components can be a cost-effective option when chosen carefully.
Use Diagrams and Exploded Views
Most reputable parts suppliers provide “exploded view” diagrams that show every component and how it fits into your appliance. These diagrams are invaluable when parts have similar names or when multiple versions of a part exist in the same model series. You can match shapes, screw patterns, and wiring connectors to the exact item you are replacing.
These diagrams also help you understand what else may need replacement at the same time. For instance, when replacing a pump, hose clamps and seals may also benefit from being updated.
Shop Smart and Verify Compatibility
Whether you buy online or in-store, always verify compatibility using your model number before checkout. Reputable sellers list compatible model numbers in product descriptions and often provide chat or phone support. Keep an eye on return policies as well; sometimes you only discover incompatibility once the part is in your hands.
Price comparison is also worth your time. The same component can vary widely in cost across retailers. Factor in shipping, taxes, warranty coverage, and delivery time. For urgent refrigerator or washer repairs, faster shipping may be worth the slightly higher cost.
Consider Safety and Skill Level
Replacing parts yourself can be empowering and economical, but safety must come first. Always unplug the appliance or shut off gas and water lines before opening anything. If a repair involves gas connections, sealed refrigeration systems, or high-voltage wiring, it is wise to call a professional. Some components—such as compressors or control boards—require specialized tools or recalibration after installation.
If you are comfortable with basic tools and careful step-by-step work, many repairs like replacing belts, switches, door seals, and heating elements are approachable for DIY homeowners.

