Grass Gator Z5105 - Twisted Trimmer Line - .105-Inch Heavy Duty Professional - Red Nylon - 102 Foot - Medium Donut for Gas Trimmers & High-Power Brushless Motors

What It Is

This is a .105-inch twisted trimmer line designed for heavy-duty gas trimmers and high-power brushless electric motors. It’s built for clearing thick weeds, briars, and overgrown grass where standard round line snaps or wears too fast.

Fitment & Compatibility

• Line diameter: .105-inch (2.7mm). Fits trimmer heads that accept .095–.105 line. Check your trimmer’s manual or head for “max line diameter” – using thicker line can jam the head.
• Spool type: Medium donut (not pre-wound). You load it manually onto your existing spool or bump-feed head. Works with most gas trimmers (Echo, Stihl, Husqvarna, Ryobi, etc.) and high-torque brushless electrics (e.g., EGO, Greenworks 80V).
• Length: 102 feet – enough for 5–8 refills depending on head size.
• OEM vs aftermarket: Aftermarket. No fitment issues with standard heads, but avoid in auto-feed heads that require specific line shape or diameter.

Key Things to Know

• Twisted shape cuts better than round line on thick stems but is noisier and slightly less durable on pavement/rocks.
• Installation: Easy – just wind evenly, avoid overlapping. Use a line winder tool to save time and reduce tangles.
• Red nylon is UV-stabilized; won’t become brittle quickly in sun, but store indoors to maximize life.
• Gotcha: If your trimmer head has a small eyelet, .105 may be too thick to feed smoothly. Test one strand before buying bulk.

Should You Buy It

Buy this if you run a gas or high-power brushless trimmer and regularly battle thick weeds or brambles. Skip it if you only trim light grass or have a low-torque electric – the thicker line will bog the motor and wear the head faster.