Description
When your Fiat tractor’s starter makes that grinding noise or just spins without turning the engine, chances are your flywheel ring gear teeth are worn or broken. This ring gear is the crucial link between your starter and engine – when it fails, you’re not going anywhere. This 127-tooth replacement gets your tractor cranking reliably again, whether you’re starting up for morning chores or firing up after sitting through a cold spell.
What You’re Getting
- 127 precision-cut teeth match your original factory specifications perfectly
- Heat-treated steel construction stands up to thousands of start cycles
- Proper tooth pitch and angle ensure smooth starter engagement without grinding
- Direct replacement for your worn or damaged ring gear – no modifications needed
- Quality manufacturing that meets the demands of daily farm use
Built for Real Farm Work
This ring gear fits the entire Fiat 90 series lineup – from the 90-90 utility tractor perfect for loader work and hay operations, up through the 180-90 field powerhouse. These tractors earn their keep on farms running everything from dairy operations to grain production, where reliable starting is essential for keeping schedules and getting work done when weather windows open up.
Made to Last
Farm tractors don’t get babied, and this ring gear is built to handle the reality of agricultural life. The steel is heat-treated for the right balance of hardness and toughness – hard enough to resist wear from constant starter engagement, but tough enough not to crack under the shock loads that come with diesel engine starting in cold weather.
Installation Notes
Ring gear replacement typically requires splitting the tractor between engine and transmission – this isn’t a quick roadside fix. Check the condition of your ring gear teeth if the old starter was noisy to avoid damaging your new starter. Heat expansion is usually needed for proper installation, so this job is best left to someone with the right equipment and experience.




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