Grass Gator Z9155P 3-Pound Twisted Zip Line Spool | 0.155-Inch Diameter (400 Feet) | Heavy-Duty Commercial Grade Line for Professional Gas Trimmers

What It Is

This is a replacement spool pre-wound with 400 feet of 0.155-inch twisted commercial-grade trimmer line, designed for heavy-duty gas trimmers like the Grass Gator Z9155P. It’s built for professionals tackling thick weeds, brush, and tall grass on large properties or commercial accounts.

Fitment & Compatibility

• Check your trimmer’s line diameter limit: 0.155-inch is thicker than standard homeowner line (usually 0.080–0.105). Only use if your trimmer’s head accepts line up to 0.155-inch or larger.
• Spool dimensions: The Z9155P spool is pre-wound and drop-in ready for most Grass Gator trimmer heads. Verify your trimmer’s spool cavity matches this spool’s width and arbor hole size (typically 1.5-inch width, 0.5-inch center hole).
• OEM vs aftermarket: This is an OEM-compatible replacement from Grass, not a generic brand. It’s a direct fit for Grass Gator Z9155P trimmers and many other commercial models with compatible heads.
• Not universal: Avoid buying if your trimmer uses a fixed-line head (no spool) or if you need smaller line for light-duty trimming.

Key Things to Know

• Twisted line design reduces tangling and improves cutting on thick, woody growth compared to round line.
• Installation is simple – just remove the old spool, snap this one in, and feed the line through the eyelets. No winding required.
• Heavy-duty but not indestructible: Expect longer life than standard line, but hitting rocks or concrete will still break it.
• Price is premium ($36.99) – justified for commercial use, but overkill for a small residential yard.

Should You Buy It

Buy this if you run a heavy-use commercial gas trimmer, need to clear thick brush or overgrown fields regularly, and want a pre-wound spool that saves time. Skip it if you have a light-duty electric trimmer, need thinner line for fine edging, or are on a tight budget – cheaper alternatives exist for occasional use.