0.155" x 18.5" Pre-Cut Trimmer Line (24-Pack), Heavy Duty Weed Eater String, Replaces OEM 490-040-C035, 734-0112, 731-10080, Fits Cub Cadet, Troy Bilt, MTD Walk-Behind Trimmers

What It Is

This is a 24-pack of pre-cut 0.155-inch diameter by 18.5-inch long heavy-duty trimmer line designed for walk-behind trimmers (not handheld string trimmers). It replaces OEM part numbers 490-040-C035, 734-0112, and 731-10080, and is intended for Cub Cadet, Troy-Bilt, and MTD walk-behind trimmers.

Fitment & Compatibility

Before buying:

• Check line diameter: 0.155” is thicker than standard 0.095” or 0.105” lines. It will only fit spools or heads designed for 0.155” line. Using it in a smaller head can cause jamming or poor feeding.
• Check length: 18.5” per piece. Make sure your trimmer head can accommodate this length without overloading the spool.
• Brand/model: Confirmed for Cub Cadet, Troy-Bilt, and MTD walk-behind trimmers. Will also fit many other brands using the same line diameter and spool design, but always verify your model’s OEM line specs.
• OEM vs aftermarket: This is an aftermarket replacement. It matches OEM specs but is not genuine Cub Cadet. If your trimmer is under warranty, check that using aftermarket line doesn’t void it.

Key Things to Know

• Heavy-duty rating: This line is reinforced for thicker weeds and brushy areas. It will wear slower than standard round line but may be more brittle in cold weather.
• Installation difficulty: Easy. Pre-cut pieces load directly into the spool—no winding or measuring required. Just remove old line and drop in new pieces.
• Common gotcha: Do not mix this line with thinner line in the same spool. It will cause uneven feeding and breakage. Use only 0.155” line in the head.
• 24-pack value: At $19.99, you get 24 pieces—enough for multiple refills. Cost per piece is about $0.83, which is competitive for heavy-duty pre-cut line.

Should You Buy It

Buy this if you have a walk-behind trimmer that uses 0.155” line and you regularly cut thick grass or light brush. It’s a solid value for heavy-duty use, and the pre-cut format saves time. Skip it if your trimmer uses thinner line (0.095” or 0.105”) or if you prefer a continuous spool for custom-length cutting.