Stens 380-643 Silver Streak Trimmer Line 1,175-Foot by .105-Inch

What It Is

The Stens 380-643 Silver Streak Trimmer Line is a bulk spool of .105-inch (2.7mm) round trimmer line, 1,175 feet long, designed for heavy-duty trimming in commercial or large residential use. It fits gas-powered string trimmers with bump-feed or manual-feed heads that accept .105-inch line, commonly used for clearing thick grass, weeds, and light brush.

Fitment & Compatibility

Before buying, check these three things:

• Line diameter: Your trimmer head must accept .105-inch (2.7mm) line. This is a medium-heavy gauge—too large for most electric trimmers (typically .065–.080) and too small for some heavy-duty brush cutters (which use .130+). Verify your owner’s manual or head markings.
• Spool type: This is bulk line, not pre-wound spools. You’ll need to cut and load it manually. Works with most trimmer brands (Stihl, Echo, Husqvarna, Ryobi, etc.) as long as the head accepts bulk line.
• OEM vs aftermarket: Stens is an aftermarket brand, not OEM. It’s a direct replacement for OEM bulk line but will not match factory spool packaging. No compatibility issues with the line itself.

Key Things to Know

• Performance: Silver Streak is a twisted, round line designed to reduce fraying and last longer than standard round line. It holds up well against abrasive edges like concrete or stone.
• Installation: Easy to load—cut a 20–30 foot length, wind evenly, and feed through the eyelet. No special tools needed. Avoid overloading the head; too much line can cause jamming.
• Length: 1,175 feet is a commercial-size spool. For a single homeowner trimmer, this will last multiple seasons. Consider splitting with a neighbor if you don’t need that much.
• Common gotcha: .105-inch line may not fit compact trimmer heads with narrow eyelets. Measure your head’s maximum line diameter before buying.

Should You Buy It

Buy this if you have a gas trimmer that uses .105-inch line and you want a long-lasting, fray-resistant option for heavy trimming around hard surfaces. It’s overkill for light residential use on small yards—you’d be better off with a smaller spool. Ideal for commercial landscapers or anyone who trims frequently and hates swapping line.