Lawnmowers Parts Echo Brushcutter Blade Conversion Kit for SRM-225/265/266/280/311 — OEM 99944200422, Easy Install & Balanced Cut

Echo 99944200422 Brushcutter Blade Conversion Kit is a genuine replacement blade assembly that updates compatible Echo trimmers (SRM-225, SRM-265, SRM-266, SRM-280, SRM-311) for improved cutting reliability and easy installation.

This kit from Lawnmowers Parts contains one authentic Echo blade conversion kit, supplied new and bulk packed for mechanics, landscapers, and DIYers. It replaces worn or damaged cutting hardware on select Echo gas brushcutters and is intended to match the OEM specifications exactly. Before installing, always verify the correct part number against your owner’s manual to ensure compatibility and to follow Echo’s recommended installation steps.

Which Echo models work with this blade conversion kit?

This conversion kit is manufactured for specific Echo straight-shaft brushcutters. It fits a range of popular SRM series units when the original hardware calls for this part number. Check your trimmer’s parts list before ordering to confirm fitment.

• Compatible models: SRM-225, SRM-265, SRM-266, SRM-280, SRM-311.
• OEM part number: 99944200422 (use this to cross-check).
• Not universal — verify shaft type and mounting details in the owner’s manual.

How do I install the Echo blade conversion kit safely?

Installation is straightforward when you follow the Echo owner’s manual and basic safety practices. Ensure the engine is off, the spark plug is disconnected, and the cutting attachment is immobilized before handling blades. If you’re not confident, a qualified service technician can install it for you.

• Disconnect spark plug and remove ignition source before work.
• Use correct wrenches and torque settings as specified by Echo.
• Inspect mating surfaces for wear and replace damaged components.

What performance differences can I expect after swapping to this OEM blade kit?

Using an OEM Echo conversion kit restores the original cutting geometry and mounting integrity, which helps maintain predictable cutting behavior and balance. You’ll likely notice consistent cutting performance compared with worn blades, and reduced vibration when installed correctly.

• Restores factory cutting angles and tooth spacing.
• Helps reduce vibration from imbalanced or damaged blades.
• Maintains proper clearance and secure mounting for safer operation.

What should I check after installing the blade conversion kit?

After installation, perform a short running test in a safe area to confirm proper balance and secure fit. Re-check fasteners after the first few minutes of operation and periodically during routine maintenance.

• Ensure blade bolts/nuts are torqued to Echo’s specification.
• Confirm there is no wobble or unusual vibration at idle and under load.
• Verify clearances between the blade and guard or housing.

Who is this for: Landscapers, rental yards, professional technicians, and homeowners who own compatible Echo SRM-series brushcutters and need a genuine OEM replacement. This kit is best suited to users who prioritize factory-fit parts for reliable cutting performance and who will follow proper installation and safety procedures. If you prefer an exact Echo replacement instead of aftermarket alternatives, this blade conversion kit provides the original design and material compatibility that matches Echo’s specifications.