4pck 89-801 Dethatcher Spring for [346] Small Engine 16", 18", 20" Universal Dethatching Blades

What It Is

This is a set of four replacement springs (model 89-801) designed to attach dethatching blades to a universal dethatcher frame for small engines. It’s used for removing thatch from lawns on walk-behind mowers or dedicated dethatchers with 16", 18", or 20" decks.

Fitment & Compatibility

Before buying, confirm your dethatcher frame uses spring-mounted blades (not rigid or bolt-on). The springs fit most universal dethatcher kits for small engines (e.g., Agri-Fab, Brinly, Yard Tuff) with 16", 18", or 20" decks. Measure the spring’s coil diameter (approx. 1/2") and overall length (about 2.5") to match your existing springs. This is not for OEM mower blades—only aftermarket dethatcher attachments. Check that your frame has four mounting points; some cheap kits use fewer springs.

Key Things to Buy

• Quality: Springs are zinc-coated steel, but some users report rust after one season. Consider applying light oil before storage.
• Installation: Easy—hook one end to the blade, the other to the frame pin. No tools needed, but wear gloves; springs can snap.
• Gotcha: The springs are universal, so they may be slightly loose or tight on non-standard frames. If your old springs are stretched, these will restore tension.
• Quantity: 4-pack covers a standard 4-blade dethatcher. If your unit has 6 blades, you’ll need two packs.

Should You Buy It

If your dethatcher’s springs are worn, broken, or missing, this is a cheap, direct replacement for most universal 16"-20" frames. It’s not for high-end commercial units or OEM-specific models. For $7.90, it’s a low-risk fix for a common wear part—just verify your frame’s spring count and size first.