When your sickle bar starts struggling to cut through thick hay or leaving ragged edges instead of clean cuts, you know it’s time for a fresh knife. This 9-foot replacement knife brings back that razor-sharp performance you need for efficient mowing, whether you’re cutting alfalfa, timothy, or mixed grass hay.
Key Features
- 35 bolted sections with extra coarse 7-tooth serration for aggressive cutting in tough conditions
- Top serrated saber tooth design bites through thick stems without clogging
- Heavy-duty construction stands up to rocks, stumps, and other field hazards
- Direct bolt-on installation – no welding or modifications needed
- Compatible with multiple mower brands for versatile replacement options
Built for Real Farm Work
This knife is designed for Case IH 100 balanced head mowers, plus it’ll work on Ford 505 and New Idea 521 and 522 models. These are the workhorses you see cutting hay fields across the Midwest – reliable machines that need reliable parts to keep the hay operation running smooth.
Made to Last
The bolted construction with 35 individual sections means you can replace just the damaged pieces instead of the whole knife when you hit something hard. The extra coarse serration pattern cuts aggressively through heavy grass without requiring as much power from your tractor.
Installation Notes
This is a direct replacement that bolts right onto your existing knife head. The sections come ready to install with proper hole spacing. If you’re replacing individual sections, make sure to match the serration pattern – mixing different tooth counts can cause uneven cutting and vibration.
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