Oregon Universal Trimmer Head Replacement, For Gas and Electric Trimmers and Weed Wackers, 4-1/2" Speed Feed, Fits Most Straight-Shaft Trimmers Such as Echo, Stihl, RedMax, Troy-Bilt and More (55-265)

What It Is

The Oregon 55-265 is a 4-1/2" universal trimmer head replacement designed to work with most gas and electric straight-shaft trimmers. It uses a Speed Feed bump-feed system for quick line reloading without disassembly, making it suitable for residential and light commercial trimming.

Fitment & Compatibility

• Shaft type: Only fits straight-shaft trimmers; will not work on curved-shaft models.
• Brands: Compatible with Echo, Stihl, RedMax, Troy-Bilt, and many others, but not guaranteed for every model within those brands.
• Measurement check: The head requires a 10mm or 12mm threaded shaft (most common). Measure your existing head’s mounting nut or consult your trimmer’s manual. Some Stihl models use a left-hand thread—verify before buying.
• Line size: Accepts 0.095" to 0.130" diameter line. The included line is typically 0.095", which may be too thin for heavy weeds.
• OEM vs aftermarket: This is an aftermarket part; it may not fit as snugly as OEM heads on some trimmers (e.g., certain Stihl or Echo models with proprietary mounting systems).

Key Things to Know

• Installation: Easy to install—remove old head, thread on new one hand-tight, then tighten with the included wrench. No tools needed for line reloading.
• Durability: Plastic housing holds up well for residential use but can crack if you hit hard objects repeatedly. Not ideal for commercial daily abuse.
• Line reloading: Speed Feed system is fast but can be finicky if line isn’t cut at a clean angle. Keep spare line pre-cut to avoid frustration.
• Vibration: Some users report more vibration compared to OEM heads on high-end trimmers (e.g., Stihl 4-MIX). If vibration is a concern, test fit before extended use.

Should You Buy It

Buy this if you have a straight-shaft trimmer from a major brand and want an affordable, easy-to-load universal head for occasional yard work. Skip it if you need a heavy-duty commercial head, have a curved-shaft trimmer, or require exact OEM fitment for a high-vibration-sensitive tool.