Homelite String Trimmer Filter Parts

Homelite String Trimmer Air Filter Parts

A clogged or damaged air filter is one of the most common reasons a Homelite string trimmer won't start or runs rough. The filter prevents dirt and debris from reaching the carburetor, but over time it gets packed with sawdust and grass particles. When airflow is restricted, the engine can't draw a proper fuel mixture — you'll notice hard starting, weak performance, or stalling under load.

Homelite filters come in foam or paper styles depending on your model year. Foam filters can be cleaned and reused; paper filters must be replaced. Either way, it's one of the easiest and most important seasonal maintenance tasks. A fresh filter often costs $5 to $15 and takes less than a minute to swap out.

• Air filter housing: plastic or metal cover; clips or bolts to engine
• Foam air filter: yellow or orange foam; wash and reuse or replace
• Paper air filter: pleated cellulose; one-time replacement
• Filter cover gasket: seal between filter and carburetor intake
• Primer bulb: works alongside filter housing; supplies fuel for cold start

Homelite String Trimmer Filter & Fuel System FAQs

What size air filter does my Homelite string trimmer use?

Homelite makes many trimmer models across decades of production — filter sizes vary by engine displacement. Enter your Homelite model number on our site and we'll show you the exact filter type (foam or paper), part number, and compatible alternatives. Common models like the Homelite UT08505 use a standard foam filter, while newer models may have different housings. Never guess on filter fit — the wrong size leaves gaps that let unfiltered air into the carburetor.

How often should I replace or clean my Homelite trimmer filter?

If you use your trimmer weekly during the season, clean the foam filter every 2 to 3 months and replace the paper element annually. Heavy use in dusty conditions calls for more frequent cleaning. A dark, compacted filter is your signal to maintain it immediately — a clogged filter reduces power, increases fuel consumption, and stresses the engine. Before each season, inspect the filter for tears or cracks that compromise its barrier.

Why won't my Homelite trimmer start after sitting all winter?

A stale carburetor is the usual culprit, but a clogged air filter makes it worse. Over winter, fuel varnish coats the carburetor jets and the air filter packs with dust. Before you pull the cord, clean or replace the air filter. Then use a carburetor cleaning kit or run fresh fuel mixed with Stabil through the system. If the trimmer still won't catch, the carburetor itself may need a full rebuild — a Homelite String Trimmer Filter Parts replacement is always the first step.

Where do I find my Homelite model number to order the right filter?

The model number is stamped or printed on a label on the trimmer's engine housing, usually near the air filter cover or fuel tank. It looks like "UT08505" or "UT08550." Write it down before ordering — this ensures you get the exact filter, gaskets, primer bulb, and other parts that fit your machine. If the label is worn off, post a photo of your trimmer to our community forum and we'll help identify it.

Order Homelite String Trimmer Filter Parts Online

Keep your Homelite string trimmer performing at its best by ensuring your filter is in top condition. Easily find and order genuine Homelite string trimmer filter parts online, to ensure the right fit. With same-day shipping, you can quickly get your equipment back up and running. Our comprehensive model and part number lookup makes it simple to identify the exact filter needed for your trimmer. Plus, our No-Hassle 365-Day Returns and Price Match Guarantee help you order with confidence. For troubleshooting common string trimmer issues, like a trimmer that won't start or runs rough, replacing the air filter is often a key solution. Visit our Homelite String Trimmer Spark Plug Parts page for additional repair options. For more repair tips and guidance, check out our String Trimmer Repair Help resource.

Homelite String Trimmer Model Number: Where to Look

On Homelite string trimmers, look for the model number on a label attached to the engine housing, often beside the air filter cover or fuel tank. If it is not there, check the shaft label or the main housing near the engine. The number may combine letters and digits, such as UT08505, so copy it exactly, including any hyphens. Type it into our model number lookup, and the catalog narrows to parts made for your unit across every category. That includes filters, fuel system parts, starting parts, cutting-head parts, and other associated Homelite string trimmer parts. Using the complete model number helps you avoid mixing up similar machines and makes it easier to order with confidence knowing the fit is right.