Description
When you hear grinding or whining noises from your transmission, or notice rough shifting between gears, the input pinion is often the culprit. This critical gear transfers power from your clutch into the transmission’s gear train, and after thousands of hours of field work, those 26 teeth can wear down or chip. A worn pinion doesn’t just make noise—it’ll eventually leave you stranded when it fails completely.
What You’re Getting
- Precision-cut 26-tooth pinion designed for 8-speed mesh transmissions
- Heat-treated steel construction that stands up to constant power transfer loads
- Exact tooth geometry for smooth engagement and proper gear timing
- Direct replacement part that fits like the original equipment
Built for Real Farm Work
This pinion fits a wide range of Massey Ferguson workhorses from the compact 158 up through the bigger 675. These tractors handle everything from hay operations and livestock chores to serious field work with heavy implements. Whether you’re running a 240 on mixed farming duties or pushing a 590 through heavy tillage, this gear keeps power flowing smoothly through your transmission.
Made to Last
Farm transmissions work hard, and this pinion is built to handle the punishment. The steel is properly heat-treated for durability, and the tooth profile is machined to exact specifications for proper mesh with the other gears. Quality construction means it’ll handle the shock loads from implements and the constant power transfer that comes with real farm work.
Good to Know
Replacing this pinion requires splitting the transmission, so it’s typically a shop job unless you’ve got good facilities and experience. While you’re in there, it’s smart to check the condition of other gears and bearings—if one gear is worn, others might be getting close. Fresh transmission oil after the repair keeps everything running smooth.
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