When you’re building or repairing a telescoping PTO driveline, this inner profile yoke is the piece that slides inside the outer tube and lets the whole system extend and compress as your implement moves through the field. Without it, your PTO shaft would be a rigid stick that’d break the first time you hit a bump or turned a corner. This Weasler-built yoke is designed specifically for Bondioli Series 4 systems with that distinctive trilobe tube shape.
What You’re Getting
- Precision-machined trilobe profile that slides smoothly but won’t wear loose over time
- Weasler quality construction that’s built for thousands of hours in the dirt
- Exact fit for 36mm trilobe tubes – no grinding, filing, or forcing needed
- U-joint cross assembly that’s sized right for mid-range PTO applications
Built for Real Farm Work
This inner yoke is part of the Bondioli Series 4 family, which you’ll find on PTO drivelines for mid-sized implements like 6-foot rotary cutters, medium hay equipment, and compact tractor attachments. Series 4 hits that sweet spot for tractors in the 40-75 horsepower range where you need more strength than a Series 3 but don’t need the heavy-duty beef of a Series 5 or 6.
Made to Last
Weasler doesn’t cut corners on their PTO components. This yoke is forged and machined to handle the constant sliding motion and power transfer that comes with telescoping drivelines. The trilobe profile distributes loads evenly, so you won’t get the wear points and stress concentrations that can crack cheaper yokes.
Good to Know
Make sure you’re working with Series 4 components throughout your driveline – mixing series sizes leads to problems down the road. The trilobe shape is specific to this series, so it won’t work with star, lemon, or other profile shapes. When reassembling, pack the sliding surfaces with good quality grease to keep everything moving smoothly and prevent corrosion.








