Overview
The ZF 2093.060.037 TRA 16 is a genuine OEM transmission component engineered for heavy-duty construction machinery. This part functions as a critical internal gear assembly within the planetary gear set, responsible for precise torque distribution and smooth power flow from the input shaft to the output differential. As an OEM-sourced unit, the SKU 2093.060.037 ensures exact fitment and metallurgical integrity for ZF drivetrains operating under extreme loads. It sits directly adjacent to the main differential housing, where it interfaces with the 2093109029: DIFFERENTIAL to maintain consistent gear mesh under variable torque conditions.
Symptoms of Failure
- Intermittent gear slipping under load: When the 2093.060.037 wears, operators often report a momentary loss of drive power when climbing grades or pushing heavy loads, a classic sign of worn tooth profiles.
- Low-frequency whining from the transmission center: A distinct, rhythmic whine that increases with vehicle speed indicates uneven wear on the TRA 16 gear teeth, often accompanied by metallic debris in the oil.
- Oil seepage around the differential housing seal: Worn internal clearances can cause excessive vibration, leading to seal fatigue and visible oil leaks near the 2093309078: DIFF.HOUSING interface.
- Hard shifting between forward and reverse: A failing TRA 16 gear set creates binding in the planetary carrier, making gear engagement feel notchy or requiring increased force on the shift lever.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number (SKU) | 2093.060.037 |
| Designation | TRA 16 (Gear Assembly) |
| Material | Case-hardened alloy steel (20MnCr5) |
| Weight | 4.8 kg (10.6 lbs) |
| Outer Diameter | 185 mm |
| Internal Spline Count | 32 teeth |
| OEM Reference | ZF 2093.060.037 |
| Hardness | 58-62 HRC |
Compatibility
This genuine ZF part is designed for use in the following transmission models commonly found in construction machinery: ZF WG180, ZF WG200, ZF WG210, and ZF WG220 series. It is also compatible with certain variants of the ZF 4WG-200 and ZF 5WG-210 powershift transmissions. The 2093.060.037 TRA 16 is typically installed in conjunction with the 2093209094: DIFFERENTIAL and the 0750117075: TAPER ROLLER BEARING to ensure proper axial load support.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093109029 | DIFFERENTIAL | Distributes torque to axle shafts |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads |
| 2093209094 | DIFFERENTIAL | Secondary torque distribution unit |
| 2093309078 | DIFF.HOUSING | Encloses differential gears |
| 0631100223 | SPRING PIN | Secures gear alignment |
| 0730300820 | THRUST WASHER | Reduces axial friction |
| 4482360002 | AXLE BEVEL GEAR | Transfers power to wheel axles |
| 2097309085 | DIFFERENTIAL AXLE | Connects differential to wheel hub |
| 5838300811 | THRUST WASHER | Controls gear end-play |
| 4482360001 | DIFFERENTIAL BEVEL GEAR | Provides final gear reduction |
Frequently Asked Questions
Q: Can the ZF 2093.060.037 TRA 16 be used in a ZF WG180 transmission without modifying the differential housing?
A: Yes, this part is a direct OEM replacement for the WG180 series. It interfaces seamlessly with the 2093309078: DIFF.HOUSING without requiring any machining or adapter plates.
Q: How do I know if my 2093.060.037 gear assembly is worn beyond tolerance?
A: Measure the backlash between the TRA 16 gear and its mating differential gear. If the clearance exceeds 0.35 mm, or if you observe pitting on more than 15% of the tooth flank surface, replacement is recommended. Always inspect the 0750117075: TAPER ROLLER BEARING at the same time for brinelling.
Q: Is the 2093.060.037 compatible with aftermarket differentials like the 2093209094?
A: Absolutely. The 2093.060.037 is designed to work with genuine ZF differentials, including the 2093209094: DIFFERENTIAL, as they share the same spline pitch and gear ratio profile. Using OEM parts ensures optimal load sharing and longevity.
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