Craftsman 917773740 wheeled weed trimmer Parts

No. For the Craftsman 917773740 wheeled weed trimmer, we recommend using 0.155-inch diameter trimmer line cut to 18-3/4 inches; using 0.095-inch line is too small and can slip, wear faster, and cause poor trimming performance. See the line specs and replacement steps in the 917773740 owner’s manual.

What to use on model 917773740

The manual lists the correct line size and length for this model.

• Line diameter: 0.155 in
• Line length (each piece): 18.75 in (18-3/4 in)
• Replace the line when it wears to less than half its original length
• Keep both line pieces the same length (within about 1 inch) to reduce vibration

Option	Fit for 917773740	What you can expect
0.155 in line (correct)	Yes	Best cut quality, proper retention, less vibration
0.095 in line	No	Line may not retain correctly; weak cutting and faster wear

Why 0.095 line is a problem

Using undersized line can create common symptoms that look like a trimmer issue, even when the trimmer is fine.

• Line can pull out of the carrier/retainer area
• Cutting power drops, especially in thick weeds
• Line breaks more easily
• Trimmer head can become unbalanced and vibrate

If you need replacement line

If you want a model-matched replacement, use the pre-cut line listed for this trimmer: line.bund.18 532182219.

Why it matters

Correct line diameter is part of how the trimmer head is designed to grip and spin the line safely. Matching the 917773740 specification helps you get cleaner cuts and reduces vibration and premature wear.

Last updated: January 2026

TrimmerPlus attachments only work with a Craftsman powerhead that is specifically built to accept TrimmerPlus-style attachments. Your Craftsman wheeled weed trimmer model 917773740 is a walk-behind line trimmer (not a split-shaft attachment-capable powerhead), so TrimmerPlus attachments are not designed to fit or operate on this model; see the 917773740 owner's manual.

What this means for model 917773740

This model uses a fixed trimmer head with replaceable cutting lines, and it is operated by engaging the trimmer head control bar. It is not an attachment system where you swap in an edger, blower, or cultivator head.

• The cutting system is a trimmer head that uses 0.155-inch diameter line cut to 18-3/4 inches.
• Trimming height is adjusted by moving the trimmer head up or down (six positions).
• The trimmer head is belt-driven; it is not a detachable attachment coupler.
• Accessories for this model are typically consumables (line) and service parts (belt, pulleys, etc.).

If you need “edging” results with this trimmer

You can still get a cleaner edge along sidewalks and driveways by technique and setup rather than an attachment.

• Set the throttle to FAST for normal trimming.
• Use the left side of the trimmer when working along fences and borders.
• Keep line lengths even to reduce vibration and improve cut quality.
• Replace worn line when it is under half its original length.

Quick compatibility check (general)

Item	Works with TrimmerPlus?	Typical requirement
Split-shaft string trimmer powerhead	Yes	Attachment-capable coupler
Craftsman wheeled weed trimmer 917773740	No	Fixed trimmer head design

Why it matters

Using an attachment not designed for the 917773740 can lead to poor performance, unsafe operation, or damage. Sticking with model-correct parts keeps the trimmer balanced and operating as intended.

Last updated: January 2026

On the Craftsman 917773740 wheeled weed trimmer, you typically do not reload a bump-feed spool; you replace the pre-cut trimmer lines on the carrier plate. Cut two pieces of 0.155-inch line to 18-3/4 inches, then seat each line under the retainer clips as shown in the 917773740 owner’s manual.

How to replace the trimmer line (model 917773740)

1. Stop the engine and let all moving parts stop.
2. Disconnect the spark plug wire and move it away from the plug.
3. Remove the worn line(s) from the carrier plate.
4. Cut new line to the correct length (18-3/4 inches).
5. Fold one piece of line in half.
6. Insert the folded end through the carrier plate opening to the back side of the retainer clip.
7. Pull the line outward until it seats fully under the retainer clip.
8. Repeat for the other side; confirm both lines match in length.

Quick checklist (to prevent line slipping or vibration)

• Use 0.155-inch diameter trimmer line (wrong diameter can slip).
• Cut each piece to 18-3/4 inches (uneven lengths can cause vibration).
• Make sure the line is fully captured under the retainer clip.
• Replace line when it wears to less than half its original length.
• Reconnect the spark plug wire only after the line is installed.

Parts that matter if the line will not stay in

If the line keeps popping out even when installed correctly, the carrier plate or related hardware may be worn.

Symptom	What to inspect	Example compatible part
Line will not retain	Carrier plate opening or retainer clip area	Line trimmer carrier plate 594935003
Excessive vibration	Uneven line length, damaged mow ball area	Husqvarna line trimmer mow ball 532182217

Why it matters

Correct line diameter and equal line length help the trimmer head stay balanced, cut cleanly, and reduce vibration that can loosen fasteners or accelerate wear on the trimmer head components.

Last updated: January 2026

To replace the trimmer head on your Craftsman 917773740 wheeled weed trimmer, we first prevent accidental starting, then lock the head so it cannot spin, remove the head without cross-threading, and install the replacement by hand-tightening in the correct direction. For diagrams and part identification, use the 917773740 owner’s manual.

Safety first (before you touch the head)

• Stop the engine and let the muffler cool.
• Disconnect the spark plug wire and keep it away from the plug.
• Tip the trimmer only as needed; keep the air filter and carburetor facing up.
• Wear gloves and eye protection.

Trimmer head replacement steps (model 917773740)

1. Disable starting: Disconnect the spark plug wire.
2. Lock the head: Align the locking slots/holes in the trimmer head area and insert a sturdy screwdriver or pin to keep the head from turning.
3. Remove the head: Turn the trimmer head off while holding the lock in place. If it resists, apply steady pressure; avoid sudden jerks.
4. Install the new head: Start threading the replacement by hand to avoid cross-threading; turn until fully seated.
5. Tighten and recheck: Hand-tighten firmly, remove the locking tool, then reconnect the spark plug wire.

Parts you may need (common for head-related repairs)

If you are rebuilding the head area rather than swapping the entire head, these model-compatible parts are commonly involved:

• Line trimmer carrier plate 594935003 (holds and routes the trimmer line)
• Husqvarna line trimmer mow ball 532182217 (wear surface under the head area)
• Line trimmer mow ball bolt 532180334 (fastens the mow ball assembly)

Quick checks after replacement

• Confirm the head spins freely by hand (engine off).
• Verify the trimmer line is installed evenly and is the correct size.
• If you notice vibration, recheck that the head is seated straight and hardware is tight.

Why it matters

A properly installed trimmer head prevents vibration, protects the spindle assembly, and helps the trimmer line cut evenly. Cross-threading or installing the head crooked can damage the spindle threads and make future service much harder.

Symptom after install	Most likely cause	What to do
Head wobbles	Cross-threaded or not seated	Remove and reinstall by hand, straight
Excess vibration	Uneven line or loose hardware	Replace line evenly; tighten fasteners
Poor cutting	Line too short or wrong diameter	Install correct line length/size

Last updated: January 2026

For your Craftsman wheeled weed trimmer model 917773740, we recommend buying replacement parts by searching with the exact model number and matching the part to the exploded-view diagrams and parts list in the 917773740 owner's manual. That approach helps ensure the part fits your specific trimmer.

Best places to buy Craftsman replacement parts

We focus on sources that let you confirm fit by model number and diagram reference.

• Order directly from the parts list and diagrams for model 917773740
• Use the diagrams in the manual to match the correct callout and part description
• If you need additional items beyond the listed diagrams, search by model number on Sears PartsDirect

How to make sure you get the right part

Even within the same Craftsman product type, small design changes can affect fit. For model 917773740, use the manual diagrams and part descriptions to confirm what you need.

• Find the model number on the trimmer’s model tag/label
• Identify the assembly (trimmer head, belt drive, handle, wheels)
• Match the diagram callout number to the parts list description
• Confirm the part type and measurements when listed (example: trimmer line diameter)
• Order using the exact part listing for your model

Common replacement parts for model 917773740

These are frequent wear items on this wheeled trimmer; confirm fit by diagram before ordering.

Part type	What it affects	Typical symptom when worn
Trimmer line	Cutting performance	Poor trimming, line breaks/shortens quickly
Drive belt	Trimmer head drive	Head does not drive or slips
Mow ball / carrier components	Head balance and durability	Excess vibration, uneven cutting

If you are servicing the trimmer head drive system, a common item customers replace is the line trimmer belt 532185476.

Why it matters

Using the correct model-specific part helps prevent repeat repairs, vibration issues, and premature wear. It also saves time by avoiding returns caused by “looks the same” parts that do not match the 917773740 configuration.

Last updated: March 2026