25-2 Trimmer Head Spool Cap Cover Replacement for Stihl 25-2 FS44 FS55 FS56RC FS90R FS80 FS85 FS100 FS100RX FS110R FS110 FS120 FS130 FS240R FS200 String Trimmer Weed Whacker (2 Pack)

What It Is

This is a replacement spool cap cover for Stihl 25-2 trimmer heads. It snaps over the spool to hold trimmer line in place and protect the spool from debris. Designed for Stihl straight-shaft trimmers using the 25-2 head.

Fitment & Compatibility

Before buying, verify:

• Your trimmer uses the Stihl 25-2 head (not the 25-2 AutoCut or 25-2 PolyCut). Check the head itself for “25-2” markings.
• Fits these Stihl models: FS44, FS55, FS56RC, FS90R, FS80, FS85, FS100, FS100RX, FS110R, FS110, FS120, FS130, FS240R, FS200. Also fits FS38, FS40, FS45, FS55R, FS70, FS75, FS81, FS86, FS90, FS91R, FS94, FS96, FS100R, FS110RX, FS111R, FS131R, FS240, FS250, FS260, FS310, FS311, FS360, FS410, FS460, FS490, FS560.
• OEM part number: 4140 007 1038. This is an aftermarket replacement.
• Measurement: Cap diameter is approximately 2.2 inches (56mm). If your cap is cracked or missing, measure your spool housing opening to confirm.

Not compatible with: Stihl 25-2 AutoCut or 25-2 PolyCut heads, or any trimmer not using the 25-2 head.

Key Things to Know

• Quality: Aftermarket plastic – may be slightly less durable than OEM, but adequate for home use. Check for flash/rough edges; sand lightly if needed.
• Installation: Tool-free – press cap onto spool until it clicks. Ensure it seats fully; a loose cap can fly off during operation.
• Common gotcha: If your cap broke because the head was overfilled with line, inspect the spool and spring for damage before installing the new cap.
• 2-pack value: Keep the spare in your tool bag – these caps are easy to lose or crack when hitting rocks or curbs.

Should You Buy It

If your Stihl 25-2 cap is cracked, lost, or worn out, this is a cheap fix that avoids buying a whole new head. It’s fine for homeowners and light commercial use, but pros may prefer OEM for longevity. For $12, the 2-pack is a no-brainer if you own multiple Stihl trimmers using the 25-2 head.