U-Frame to Dozer Bushing for Case 850, 850B, 850C, 850D & 850E Dozers

Part # D33678

Fits Models At A Glance:

• Case Crawler Dozers: 850, 850B, 850C, 850D, 850E

Key Notes:

• Part Number: D33678
• Weight: 0.40 lbs (0.18 kg)
• Inside Diameter: 51.02mm (2.01")
• Outside Diameter: 63.5mm (2.50")
• Material: Precision-machined, hardened steel
• 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