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Ryobi String Trimmer Trimmer Head Parts

Ryobi String Trimmer Trimmer Head Parts from Repair Clinic are genuine OEM replacements for cracked heads, damaged spools, and feed problems. Match the right part to your model, then order with same-day shipping, 365-day returns, and a price match guarantee.

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Product is a manufacturer part
308042003 Bump Knob
$9.98

String trimmer bump knob (or spool retainer) with left-hand threads. Color: red.

Skill Level (1)
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Product is a manufacturer part
06713 Compression Spring
$1.72

Homelite compression spring. Pushes bump knob back out after string is released.

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Return uninstalled Ryobi String Trimmer parts and products for any reason within 365 days of purchase.
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We'll match any price offered by our direct competitors on all genuine OEM Ryobi String Trimmer replacement parts
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Genuine OEM Ryobi Replacement Parts
Get peace of mind with the real thing—genuine OEM Ryobi String Trimmer parts.

Ryobi String Trimmer Trimmer Head Parts

The trimmer head is the hardest-working part of your Ryobi string trimmer — it spins thousands of times per minute, and the cutting line takes all the impact. When your trimmer head stops feeding line, jams, or the spool cracks, a new head or spool kit gets you back to work fast.

Ryobi makes several trimmer head designs across their product line. Bump heads (where you tap the head on the ground to feed line) are the most common. Load the correct line diameter for your head — usually.065" or.080" — and you'll get smooth feeding and clean cuts. Replace the entire head assembly if the housing cracks or the spool mechanism wears out.

  • Bump head won't feed line: Spool jam, line tangled inside, or worn feed mechanism
  • Trimmer head cracks or breaks: Impact damage; replace the complete head assembly
  • Line keeps breaking: Wrong line diameter for your head; load OEM-spec diameter
  • Spool is missing or damaged: Replacement spools available separately; match your head model
  • Head spins but no line feeds: Check for kinks in line, debris inside spool, or worn advance collar

Find your exact Ryobi trimmer model using the model number lookup to confirm the correct trimmer head and spool assembly. Ryobi trimmer heads are specific to each model — verify the part number before ordering.

Ryobi String Trimmer Trimmer Head Questions

What line diameter should I use in my Ryobi trimmer head?

Ryobi trimmer heads are designed for specific line diameters — most commonly.065" or.080" round trimmer line. Using the wrong diameter can cause the spool to jam, line to break frequently, or the head to feed poorly. Check your trimmer head housing or manual for the correct spec. When you load the right diameter, you'll notice smoother feeding and cleaner cuts. Thicker line (.095"+) requires a heavy-duty head designed for it — don't force oversized line into a standard head.

Why does my Ryobi trimmer head keep jamming?

Line jams inside the spool when the spool is wound too tightly, when debris gets into the feed mechanism, or when old dried-out line becomes brittle and tangles. Start fresh: empty the old line completely, clean out the spool housing with a brush, and wind new line slowly and evenly. If the spool is cracked or the advance collar is worn, replace the spool assembly. A jammed head that won't feed even with fresh line usually means the spool or head housing has internal damage and needs replacement.

How do I know which Ryobi trimmer head I need?

Ryobi makes bump heads, twist-off heads, and auto-feed heads across different trimmer models. The head is model-specific — the diameter, mounting type, and spool design vary. Enter your Ryobi trimmer model number (usually on the motor housing or in your manual) into Repair Clinic's lookup tool to see the exact trimmer head assembly for your machine. Never substitute a head from a different Ryobi model — the mount, spool, and feed mechanism are engineered for that specific trimmer.

Can I replace just the spool, or do I need a whole new head?

If the spool itself is cracked, warped, or the feed pawls are worn, you can often buy a replacement spool assembly separately — it's cheaper than a full head. However, if the head housing is cracked, the mounting collar is broken, or the head won't feed line even with a fresh spool, you need a complete new trimmer head assembly. Check your parts diagram: spool kits are sold separately and are usually half the cost of a complete head.

Homeowner trimming lawn and adjusting the string trimmer string to keep cutting
String trimmer weed eater cutting through overgrown grass along fence line

Convenient Online Ordering for Ryobi String Trimmer Trimmer Head Parts

Keep your Ryobi string trimmer in peak condition with genuine trimmer head parts available online. Finding the right replacement is effortless with our model number lookup tool. Enjoy the convenience of same-day shipping to get your equipment back to work without delay. Whether dealing with a worn trimmer head or a broken clutch, replace it confidently with our no-hassle 365-day returns and price match guarantee. Common trimmer issues like the head not spinning or stopping can often be traced back to a damaged drive shaft or worn parts. Ensure smooth operation by replacing faulty parts promptly. Find Ryobi String Trimmer Trimmer Head Parts for a straightforward repair experience. For additional support, visit our String Trimmer Repair Help section for troubleshooting tips and repair guides.

Ryobi String Trimmer Model Number: Where to Look

On Ryobi string trimmers, look for the model number on the main housing near the engine or on the label along the shaft. It may also appear on the cooling shroud or in the owner's manual. Wipe away dirt and copy the complete model number, including letters and numbers, since similar-looking trimmers can use different parts. Enter that number in the model number search to pull up the parts matched to your unit. The model number filters the full Ryobi string trimmer catalog, not just the trimmer head section, so you can find compatible parts for the entire machine. You order with confidence knowing the fit is right.

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Routine Wear Items for Ryobi String Trimmer

Routine wear items are the easiest way to keep your Ryobi String Trimmer performing well between larger repairs. Repair Clinic stocks OEM consumables and wear items along with installation videos and part diagrams. Use the model number lookup to confirm the exact part for your unit, then order a spare so you have it ready for the next scheduled service.

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Four Likely Reasons Why Your String Trimmer Head Won't Spin

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