Description
When you see gear oil spots under your tractor or notice that telltale whine from the rear end getting louder, chances are your rear axle seals are calling it quits. This O-ring provides critical sealing in your rear axle assembly, preventing costly gear oil leaks and keeping contamination from getting into your differential. Don’t let a small leak turn into a big repair bill—this simple seal keeps your rear end properly lubricated and protected.
What You’re Getting
- Precision-molded rubber compound that resists gear oil and temperature extremes
- Exact OEM dimensions ensure proper fit and long-lasting seal performance
- Durable construction handles the constant pressure and movement in your rear axle
- Direct replacement part that restores factory sealing without modifications
Built for Real Farm Work
This O-ring serves a wide range of Massey Ferguson workhorses from the compact 3100 series utility tractors through the big 8100 series row-crop machines. Whether you’re running a 3635 on hay ground, using a 6280 for heavy tillage work, or operating an 8120 on grain production, this seal handles the loads these tractors dish out day after day.
Made to Last
This isn’t just any rubber ring—it uses compounds specifically designed for rear axle applications. The material resists the breakdown caused by gear oil while staying flexible through temperature swings that would crack lesser seals. Precision manufacturing ensures the exact dimensions needed for proper compression and sealing.
Good to Know
Rear axle work usually means draining the differential, so have fresh gear oil ready. Clean all sealing surfaces thoroughly—any debris or old seal material will cause the new O-ring to leak. While you’re in there, it’s worth checking other seals since they’ve all aged together in the same oil.






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