Motor Grader Turbine Assembly – Transmission Identification Guide
This motor grader turbine assembly requires identification from the original powertrain because the existing record does not contain a verified part number or machine model. Depending on the transmission or converter design, assemblies that look alike may differ in spline, pilot, diameter, blade geometry and mating clearances.
For an accurate enquiry: provide the grader make, complete model and serial number, the transmission or torque-converter identification plate, and clear photographs of both faces of the removed assembly.
Confirm where the assembly operates
First establish the powertrain unit and the turbine’s position within it. Record the symptoms that led to disassembly, but avoid diagnosing the turbine from a single symptom. Poor drive, heat, noise or contaminated oil can also involve pumps, bearings, stators, clutches, seals or hydraulic pressure control.
| Product type | Motor grader turbine assembly |
| Part number | Not shown in the original record; verification required |
| System | Motor grader transmission / converter powertrain |
| Critical checks | Unit model, spline, pilot, diameter, blade geometry and mating clearances |
Identification details to record
Transmission or converter manufacturer, model and complete plate code.
Any casting, stamped or etched number on the turbine assembly.
Overall outside diameter, hub height and pilot diameters.
Spline tooth count, major diameter and engagement length.
Blade count and photographs showing blade direction and condition.
Bearing, washer, spacer and retaining-ring references.
Grader model, serial number and photographs of mating components.
Inspection after removal
Look for cracked or deformed blades, rubbing marks, loose hubs, worn splines, heat discoloration and metallic debris. Inspect related bearings, thrust surfaces, seals and the oil path. The condition of the drained oil and filter debris can help determine whether damage is local or affects the wider powertrain.
Clean assembly is essential
Powertrain components are sensitive to contamination. Keep open housings covered, clean oil passages and use lint-free handling practices. Do not force splines or pilots into engagement. Verify end clearance, lubrication, fastener locking and filling procedures from the applicable service information. After installation, monitor oil level, pressure, temperature, noise and drive response during a controlled test.
Related motor grader drivetrain pages
For a mechanical shaft in the drive system, review the motor grader gear shaft 83513201. For the wheel-end reduction component, see the wheel reducer assembly 800345910 / 83513200. These links aid system navigation and do not establish compatibility.
FAQ
Can the turbine assembly be matched from outside diameter alone?
No. Spline, pilot, hub height, blade geometry and the exact powertrain model must also be confirmed.
Does poor drive always mean the turbine is damaged?
No. Pressure, oil condition, pumps, clutches, stator components and seals can produce related symptoms. Diagnose the complete unit.
What should be checked if metal is found in the oil?
Inspect the filter and all related powertrain components according to the overhaul procedure; contamination must be removed before reassembly.
Why is the transmission plate important?
One grader model can use different powertrain configurations. The complete unit code narrows the correct internal parts.
Compatibility note: Final selection requires verified machine and powertrain identity, original markings, spline data and measured interfaces.
