Description
When your finger bar mower starts chattering or the sickle action gets rough, chances are good it’s the coupler that connects the drive system to the cutting bar. This little part takes all the back-and-forth motion from your tractor’s drive system and transfers it to the cutting action—and when it gets worn out, you’ll know it. A bad coupler means uneven cutting, extra vibration, and that frustrating feeling that your mower just isn’t working like it should.
What You’re Getting
- Precision-machined square bushing design that handles the constant reciprocating motion
- Heavy-duty construction built to withstand the shock loads of cutting through thick grass and brush
- Engineered tolerances that keep the sickle timing correct for clean, efficient cutting
- Direct replacement part that fits right where your old coupler used to be
Built for Real Farm Work
This coupler is designed for Thompson finger bar mowers, which are commonly used on utility tractors for roadside maintenance, pasture clipping, and general cutting applications. Whether you’re maintaining fence rows, keeping ditches clean, or cutting hay that’s gotten too tall, this part keeps your mower’s cutting action smooth and reliable.
Made to Last
The square bushing design provides better load distribution than round bushings, which means it lasts longer under the constant reversing loads that finger bar mowers create. The materials are heat-treated to resist wear, and the precision fit ensures your mower cuts cleanly instead of tearing grass.
Installation Notes
You’ll need to remove the old coupler and clean the mounting surfaces thoroughly—dirt and debris here can cause premature wear. The square bushing design means proper alignment is critical, so take your time getting it positioned correctly. Check that the sickle moves freely through its full stroke before putting the guards back in place.
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