Overview
The ZF 2093.346.045 OUTPUT FLANGE is a critical driveline component engineered to transfer rotational torque from the transmission output shaft to the driveshaft or differential. Situated at the rear of the gearbox assembly, this OEM genuine part ensures precise alignment and vibration-free power delivery in heavy-duty construction machinery. The SKU 2093.346.045 is machined from high-strength alloy steel to withstand extreme torsional loads and thermal cycling common in excavators, wheel loaders, and graders. This flange interfaces directly with the 2093101025: HOUSING and the 2093301031: TRANSMISSION HOUSING, forming a sealed unit that prevents contamination ingress. Proper installation requires verifying the 0730365092: TYPE PLATE for exact model matching and securing the assembly with a 4475280013: SCREW PLUG to maintain hydraulic pressure integrity.
Symptoms of Failure
- Transmission fluid seepage at the output shaft seal: A worn output flange often damages the lip seal, causing oil to drip onto the driveshaft. Search for “ZF transmission oil leak at output flange fix” to identify this issue early.
- Driveline vibration during acceleration: Spline wear on the 2093.346.045 flange creates play between the shaft and flange, producing a rhythmic shudder under load. This symptom is commonly reported as “construction equipment driveline vibration causes.”
- Clunking noise when shifting between forward and reverse: Excessive backlash from a deformed flange spline results in a metallic knock. Technicians searching for “ZF WG transmission clunking noise repair” will find this part as a likely culprit.
- Premature bearing failure in the transmission housing: A misaligned output flange places axial stress on the output shaft bearings, leading to overheating and eventual seizure. This is a known failure mode for “heavy equipment transmission bearing noise.”
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 2093.346.045 |
| Material | 40CrMnMoS8-6-4 Alloy Steel (induction hardened) |
| Outer Diameter | 165 mm |
| Pilot Diameter | 85 mm |
| Overall Length | 92 mm |
| Spline Count | 24 (DIN 5480) |
| Weight | 3.85 kg |
| OEM Reference | ZF 2093.346.045 |
| Torque Capacity | 2,800 Nm (max) |
Compatibility
This output flange is designed for ZF’s WG series powershift transmissions commonly deployed in construction machinery. It is a direct fit for the WG180, WG200, and WG210 models. The 2093.346.045 also appears in select Ecomat 4HP and 6HP variants used in wheel loaders and telehandlers. Always cross-reference the 0730365092: TYPE PLATE to confirm housing compatibility, as the flange bore depth varies between the WG180 and WG200 series. For machines with a 2093301031: TRANSMISSION HOUSING, verify the gasket surface condition using the 2093101025: HOUSING as a reference point.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2093101025 | HOUSING | Encloses the output shaft assembly and supports the flange |
| 2093301031 | TRANSMISSION HOUSING | Main gearbox casing that aligns the output flange |
| 0730365092 | TYPE PLATE | Identification tag for transmission model and serial number |
| 4475280013 | SCREW PLUG | Seals the hydraulic test port on the housing |
| 2093301021 | GASKET | Prevents oil leakage between housing and flange |
| 2093301033 | COVER | Protects the output shaft from debris |
| 0636015073 | HEXAGON SCREW | Fastens the cover to the housing |
| 0634314235 | O-RING | Creates a static seal on the flange pilot |
| 0501337897 | SPEED SENSOR | Monitors output shaft RPM for electronic control |
| 0636101026 | CAP SCREW | Secures the flange to the output shaft hub |
Frequently Asked Questions
Q: Can the 2093.346.045 output flange be reused after removing it from a transmission?
No. ZF recommends replacing the flange whenever it is removed, as the interference fit and spline wear patterns are single-use. Reusing it risks oil leaks and driveline vibration.
Q: What torque should be applied to the cap screw (0636101026) when installing this flange?
Use a calibrated torque wrench set to 120 Nm for the cap screw. Always install a new 0634314235: O-RING and 2093301021: GASKET during reassembly to maintain seal integrity.
Q: How do I confirm that this flange fits my ZF WG200 transmission?
Locate the 0730365092: TYPE PLATE on the transmission housing. Verify the model code includes “WG200” and that the output shaft spline count matches 24 teeth. The flange outer diameter must be 165 mm for a correct fit.
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