Nakkaa 5-Pack Trimmer Head 99944200907 – Compatible with Speed-Feed 400 & SRM Models

Nakkaa 5-Pack Trimmer Head – Flexible, Ready-to-Use Replacement

The Nakkaa 5-pack brings together replacement trimmer heads designed to fit a range of popular weed eater systems. If you’ve ever paused to swap a worn head or wrestle with compatibility, this set offers a straightforward option that can help you keep trimming sessions efficient and comfortable. Each head is sized for steady cuts and predictable performance, so you can focus on finishing the job rather than fiddling with hardware.

Inside the package you’ll find five replacement heads that match two documented part numbers, 99944200907 and 99944200902. The 10 mm by 1.25 mm adapter and the 3-3/4 inch diameter are specified to work with select Speed-Feed 400 heads and a range of SRM and PAS attachments, making this set a versatile choice for seasonal maintenance.

What you get

• Five replacement trimmer heads for quick swaps during a project
• Two compatible part numbers: 99944200907 and 99944200902
• Clear packaging that helps you inventory spare parts at a glance

Key compatibility and specs

• Adapter size: 10 mm × 1.25 mm
• Diameter: 3-3/4 inches
• Compatible with Speed-Feed 400 and SRM-210, SRM-225, SRM-230, and related PAS attachments

Real-world use scenarios

Imagine a weekend project where the grass edge is uneven and requires precise trimming along borders. With this 5-pack, you can swap a worn head and resume work without resharpening or searching for a single replacement. The heads are easy to store on a pegboard or in a toolbox, so you’re ready when the job calls for a clean, consistent line.

Prospective benefits

• Quick replacements can reduce downtime between sessions
• Broad compatibility supports different trimmer brands and models
• Standardized dimensions simplify planning and stocking spare parts

Installation tips

Before installing, ensure the trimmer is powered off and cool. Check that the adapter fits the shaft and lock mechanism, then secure the head with the appropriate fastener. If you encounter resistance, double-check model compatibility and adapter alignment.