Stihl Chainsaw Parts

Stihl Chainsaw Parts & Repair Solutions

Stihl chainsaws are built to last, but regular maintenance and timely repairs keep them running safely and efficiently. Whether you're dealing with a hard-starting engine, a dull chain, or a broken sprocket, OEM Stihl parts ensure your saw performs exactly as engineered. Repair Clinic carries genuine Stihl parts for the entire MS series — from the MS250 homeowner models to the professional MS660 — so you get the exact fit every time.

Many Stihl chainsaw issues stem from a few common wear points. The good news? Most are affordable fixes that beat buying a new saw. Hard starts and rough running almost always trace back to the carburetor, fuel line, or primer bulb. Chains stretch and dull with use — that's normal and expected. Sprockets wear as the chain ages. Recoil starters and spark plugs are seasonal maintenance items. Browse Stihl chainsaw parts by model to find what you need, or use your model number to pinpoint the exact replacement.

• Chain dull or stretched: Chains are consumables; pitch, gauge, and drive link count must match your bar
• Hard start or won't run: Carburetor, fuel line, spark plug, or primer bulb; ethanol damage is common
• Low power or rough idle: Carburetor tuning or fuel mixture issue; air filter may be clogged
• Sprocket worn or broken: Rim sprocket or spur sprocket; inspect when replacing chain
• Recoil starter stuck or won't recoil: Recoil spring or pawl failure; common after winter storage

Stihl Chainsaw Parts FAQs

Why is my Stihl chainsaw hard to start?

Hard starting on Stihl chainsaws is almost always a fuel system issue. Ethanol in modern gasoline damages the carburetor float, needle, and jets over time — especially if the saw sat idle for more than a few weeks. The first fix is a carburetor rebuild kit (jets, gasket, seals). If the kit doesn't work, a new carburetor is the next step. Also check the spark plug (foul it out and try a fresh one), fuel line (crack it or clog it from varnish), and primer bulb (cracks let air in). Use 50:1 oil-to-gas mix as specified for your model; wrong ratio makes starting harder.

When should I replace the chain on my Stihl chainsaw?

Replace the chain when it's dull, stretched, or damaged. A dull chain forces you to push hard, overheats the engine, and tears wood roughly instead of cutting clean. If the chain pulls to one side, teeth are broken or uneven — replace it. Stretched chains slip on the sprocket and cause bar damage. Always buy the exact pitch, gauge, and link count for your bar — these dimensions are printed on your original chain and in your manual. Stihl chains are OEM and fit perfectly; aftermarket chains often have fit or safety issues. When you replace the chain, inspect the sprocket — if the rim is worn, replace the sprocket at the same time.

How do I find the right Stihl carburetor for my model?

The carburetor model number is stamped on the carb body itself. You can also find it in your owner's manual or use your chainsaw model number (MS250, MS290, MS360, etc.) to look up the correct carb. Stihl carburetors are model-specific — wrong carb means wrong fuel mixture, hard starting, and poor performance. If your saw is hard to start or runs rough after sitting, try a carburetor rebuild kit first (much cheaper than a new carb). If the carb body is cracked or the float is corroded, full replacement is necessary. Enter your Stihl model number on our site to see the exact carburetor and rebuild kits in stock.

What's the difference between Stihl rim sprocket and spur sprocket?

The rim sprocket is a replaceable ring that mounts on the clutch drum — it wears as the chain rotates and is designed to be swapped out. The spur sprocket is the fixed sprocket on the drive shaft (inside the engine case). On most homeowner Stihl saws (MS250, MS290), the rim sprocket is replaceable and commonly fails. On some professional models, a fixed spur sprocket is used. When your chain pulls or jumps teeth, inspect the sprocket — if the teeth are hooked or flattened, the sprocket has worn. Always replace the sprocket when you replace the chain; a new chain on a worn sprocket wears out the chain in days. Your model number tells you which type your saw uses.

Order Stihl Chainsaw Parts Online

Ordering Stihl chainsaw parts online is simple and helps you find genuine OEM parts for your unit. With same-day shipping on most in-stock items, you'll have your replacement part fast, minimizing downtime. Our model/part number lookup finds the exact OEM part for your unit, and every order is backed by our 365-day return policy and price-match guarantee. Browse our repair help section for troubleshooting tips, part testing guides, and step-by-step installation videos for your specific product.

Stihl Chainsaw Model Number: Where to Look

Stihl prints the model number on the powerhead housing of most chainsaws, often near the rear handle or on the starter housing. Look for a label or designation such as MS 170, MS 250, or 029; clean off sawdust if needed, and check the owner's manual if the label is worn. Enter that complete model number in the search bar to filter the full Stihl chainsaw parts catalog to parts that fit your saw. This model-based search accounts for differences between saw versions and gives you a fast, accurate match across every associated part category. You order with confidence knowing the fit is right.