Location: U-frame to dozer chassis pivot point — supports blade articulation at the connection between the U-frame and the main dozer chassis on Case 850 series crawler dozers
Application: U-frame pivot bushing — provides a wear surface at the pivot joint between the U-frame and dozer chassis, allowing the blade to articulate left and right while absorbing the lateral forces generated during dozing operations
Common Use Case or Symptoms: Use when the U-frame bushing is worn, wallowed out, or seized — a worn bushing causes excessive play at the U-frame pivot, imprecise blade control, accelerated pin wear, and clunking or knocking during blade angle changes on Case 850 through 850E crawler dozers.
Why Choose Broken Tractor:
✅ Precision-Machined Hardened Steel: Machined to exact ID and OD specifications at 51.02mm x 63.5mm — ensures correct interference fit at the U-frame pivot and long service life under the demanding lateral loads of crawler dozer blade operations
✅ Full 850 Series Coverage: One bushing covers all five generations of the Case 850 crawler dozer from the original 850 through the 850E — ideal for dealers and fleet operators servicing multiple 850 series machines
✅ Fast Shipping from a U.S.-Based Team: In-stock and ready to ship from our U.S. warehouses
$34.00/ea
Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.
Can’t Find What You’re Looking For?
Our knowledgeable staff will be happy to help you with any of your tractor, backhoe, dozer, or engine parts needs.
Do you need your part quickly? You're in luck! We have warehouses all over the country to ensure a quick and easy delivery time. Most of our parts ship from our warehouses the same day you place your order. And many times, orders are delivered in Two to Three days.
Our in house parts are manufactured following strict quality standards in our warehouse in Ohio. Parts such as hydraulic cylinders, pins, bushings, sheet metal, track adjusters, booms and dipper sticks are all ready to ship same day that they are purchased! With less time to wait for your shipment, you will be able to get back to work as quickly as possible.
Did you accidentally purchase the incorrect part? We offer returns and exchanges here at Broken Tractor. To proceed with a return, please call us toll free, and we will provide you with return authorization and a step by step return process for your convenience. We are more than happy to help you exchange your part for the correct one! Give us a call at 1-800-909-7060 and we would be pleased to help you.
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