Overview
The ZF 2095.073.005 TRA 13 is a critical OEM genuine component engineered for the internal gear train assembly within heavy-duty ZF powershift transmissions. This part functions as a precision-machined shaft or gear element that facilitates torque transfer and speed regulation between the transmission’s planetary sets. Specifically, it sits within the intermediate shaft cluster of the transmission housing, directly interacting with the differential assembly to ensure smooth power distribution to the axles. The SKU 2095.073.005 is manufactured to ZF’s exacting tolerances, making it essential for maintaining drivetrain integrity in construction machinery such as wheel loaders and graders. When replacing this unit, technicians often inspect the 2095109020: DIFFERENTIAL and the 2095209037: DIFFERENTIAL for correlated wear, as these components share the same lubrication circuit and load path.
Symptoms of Failure
- Intermittent gear slipping under load: A worn 2095.073.005 TRA 13 often causes the transmission to momentarily lose torque when climbing grades or carrying heavy loads, resulting in a distinct “ratcheting” sound from the driveline.
- Metallic debris in transmission oil: As the gear teeth or splines degrade, fine steel particles appear in the hydraulic fluid, detectable during routine oil changes or filter inspections.
- Vibration during low-speed maneuvering: Operators may feel a rhythmic shudder through the chassis when operating at idle or creeping speeds, indicating uneven gear meshing.
- Oil seepage from the intermediate housing seal: Excessive play in this component can distort the adjacent seal surface, leading to slow drips of ATF fluid near the bell housing.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2095.073.005 |
| Designation | TRA 13 (Transmission Ratio Assembly) |
| Material | Case-hardened alloy steel (20MnCr5 equivalent) |
| Weight | 3.2 kg (7.05 lbs) |
| Overall Length | 185 mm |
| Major Diameter | 62 mm |
| Spline Count | 24 involute splines |
| OEM Reference | ZF 2095.073.005 |
| Surface Hardness | 58-62 HRC |
Compatibility
This genuine ZF part is designed for use in the WG180, WG200, and WG211 series powershift transmissions commonly found in construction machinery. It is also compatible with the ERGOPOWER 3-speed and 4-speed variants used in mid-size wheel loaders and telehandlers. The 2095.073.005 interfaces directly with the 2095309059: DIFF.HOUSING and the 0750117075: TAPER ROLLER BEARING to maintain axial alignment. Always verify your transmission model tag before ordering, as earlier WG150 series units use a different spline profile.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2095109020 | DIFFERENTIAL | Distributes torque between left and right axles |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on the shaft |
| 2095209037 | DIFFERENTIAL | Secondary differential for planetary reduction |
| 2095309059 | DIFF.HOUSING | Encloses and aligns differential gears |
| 0631329086 | SPRING PIN | Secures gear train alignment dowels |
| 0730300820 | THRUST WASHER | Reduces axial friction between rotating gears |
| 4482360002 | AXLE BEVEL GEAR | Transfers power from differential to axle shaft |
| 2095309081 | DIFFERENTIAL AXLE | Driveshaft component connecting to wheel hubs |
| 5838300811 | THRUST WASHER | Prevents gear end-play in the differential case |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Primary gear set for torque splitting |
