Description
When you’re hearing grinding or clunking noises from your front axle, or if your tractor’s not turning smoothly under load, there’s a good chance the sun gear in your planetary differential is wearing out. This little gear might be small, but it’s at the heart of how power gets distributed to your wheels. When it starts failing, you’ll know it—and you don’t want to be stuck in the middle of planting or harvest with a dead front axle.
What You’re Getting
- Precision-machined gear that distributes power evenly between wheels for smooth turning
- Built to handle the heavy torque loads these tractors put out during field work
- Direct replacement that restores your planetary differential to factory performance
- Hardened steel construction resists wear from constant engagement cycles
Built for Real Farm Work
This sun gear fits the John Deere 6000, 6010, and 6020 series tractors—the workhorses that handle everything from loader operations to heavy tillage work. Whether you’re running a 6400 with a loader bucket full of feed, pulling through tough ground with a 6420, or maneuvering around the farmyard with a 6110, this gear keeps your front wheels turning smoothly together.
Made to Last
Your planetary differential works hard every time you turn, especially under load. This sun gear is built from quality steel that’s been heat-treated to resist the constant stress of power transfer and gear mesh cycles. It maintains the tight tolerances needed for smooth operation even after thousands of hours of farm work.
Good to Know
Replacing a sun gear means tearing into the front axle housing, so it’s a good time to check the condition of your planetary gear set and replace any worn components while you’re in there. Most shops recommend doing this work as a complete repair rather than piecemeal to avoid having to go back in again.
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