Description
When your hydraulic lift gets sluggish or your external hydraulics lose their punch, a worn auxiliary pump drive gear might be the culprit. This 22-tooth gear is what connects your transmission to the auxiliary hydraulic pump, transferring power to keep your three-point hitch lifting and your external hydraulics running strong. Without it working properly, you’ll notice everything hydraulic starts feeling weak.
What You’re Getting
- Precision-machined 22 teeth that mesh perfectly with your auxiliary pump drive
- Heat-treated steel construction built to handle the constant load cycling of farm work
- Direct replacement part that fits without modifications or special tools
- Factory specifications ensure proper gear ratios and smooth power transfer
Built for Real Farm Work
This gear fits an impressive range of Massey Ferguson tractors from the 100, 200, 500, and 600 series, plus the newer 1000 series models. These are the versatile mid-size tractors you see on farms everywhere, handling everything from hay operations and livestock chores to row crop work and loader duties. Whether you’re running a 135 around the barnyard or pulling implements with a 690, this gear keeps your hydraulics supplied with the flow they need.
Made to Last
Auxiliary pump gears work hard – they’re constantly under load every time you lift the three-point or cycle your loader. This replacement gear features proper metallurgy and heat treatment to resist wear, even when you’re working your tractor at full capacity. The precise tooth profile ensures smooth engagement and minimizes stress that could cause premature failure.
Good to Know
Replacing this gear requires splitting the transmission or removing the auxiliary pump, so it’s typically done during other major service work. While you’re in there, it’s smart to inspect the mating gears and replace any that show wear – a new gear meshing with worn teeth won’t last long. Most experienced mechanics tackle this job during winter overhaul when the tractor’s down anyway.
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