BlueStars Trimmer Head Spool Cap Cover - Compatible with Autocut 25-2 Stihl FS90R FS44 FS56 FS90 FS100RX FS110R FS120R FS130R FS240R FS56C FS55 FS55R FS55RC String Trimmer Weed Whacker - Pack of 6

What It Is

This is a pack of six replacement spool cap covers designed for Stihl Autocut 25-2 trimmer heads. They hold the trimmer line spool in place and protect the head from debris on Stihl FS and FC series trimmers.

Fitment & Compatibility

Before buying, confirm your trimmer uses the Autocut 25-2 head (not the 25-1 or 25-0). This cap fits Stihl models FS44, FS55, FS55R, FS55RC, FS56, FS56C, FS90, FS90R, FS100RX, FS110R, FS120R, FS130R, FS240R, and FC series units with the same head. It is an aftermarket replacement for OEM part 4119 007 1021. Measure your existing cap diameter (approximately 2.5 inches) to verify. Do not assume it fits all Stihl trimmers—only those with the Autocut 25-2 head.

Key Things to Know

• Installation difficulty: Very easy—snaps on by hand, no tools required.
• Quality: BlueStars caps are made of nylon plastic; some users report they are slightly less durable than OEM but fine for normal use.
• Common gotcha: The cap may fit snugly on older heads due to wear; lightly sanding the inner edge can help.
• Pack value: Six caps for $17.99 is a good deal compared to buying OEM individually.

Should You Buy It

If you own a Stihl trimmer with the Autocut 25-2 head and need a budget-friendly, multi-pack backup for lost or cracked caps, this is a solid choice. It’s not a durability upgrade over OEM, but for the price and convenience of having spares, it’s worth it. Avoid if you need a perfect OEM fit or have a different head system.