Overview
The ZF 2093.377.056 Intermediate Plate is a critical structural component within the planetary gear set of heavy-duty ZF transmissions. This OEM genuine part acts as a precision-machined separator and load-bearing surface between gear clusters, ensuring correct axial alignment and oil distribution under high torque loads. The SKU 2093.377.056 is engineered to withstand extreme shear forces in construction machinery applications, preventing gear train distortion during demanding operations such as grading, excavation, or material handling.
Symptoms of Failure
When the ZF 2093.377.056 Intermediate Plate wears or cracks, operators may notice intermittent gear slippage under load—a common long-tail search query for “ZF transmission losing power when digging.” Another frequent symptom is metallic grinding noises from the transmission housing, particularly during gear engagement shifts. Advanced wear often leads to contaminated transmission fluid with visible metal particles, as the plate’s hardened surface degrades. Finally, erratic clutch engagement or delayed shifting can occur when the plate’s warpage alters hydraulic clearance within the clutch pack assembly.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 2093.377.056 |
| Material | Case-hardened alloy steel (DIN 1.7131) |
| Outer Diameter | 210 mm (estimated) |
| Thickness | 12.5 mm (estimated) |
| Weight | 1.85 kg (estimated) |
| OEM Reference | ZF 2093.377.056 |
| Surface Hardness | 58-62 HRC |
Compatibility
This Intermediate Plate is designed for ZF’s WG-series powershift transmissions commonly used in construction machinery. It is a direct fit for the ZF WG180, WG200, and WG210 models, as well as certain variants of the WG120 series. The plate also appears in select ZF 4WG-200 and 6WG-250 torque converter transmission assemblies. Always verify your transmission model’s serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838109012 | DIFFERENTIAL | Distributes torque between drive wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial shaft loads |
| 2093209023 | DIFFERENTIAL | Secondary torque split for planetary gears |
| 5838300626 | DIFFERENTIAL HOUSING | Encloses differential gear set |
| 0631329088 | SPRING PIN | Secures gear alignment dowels |
| 5838300811 | THRUST WASHER | Reduces axial friction between rotating parts |
| 5838300721 | AXLE BEVEL GEAR | Transfers power to axle shafts |
| 5838300633 | AXLE | Drives wheel hub rotation |
| 5838300753 | THRUST WASHER | Controls end-play in gear clusters |
| 5838300818 | THRUST WASHER | High-load axial bearing surface |
During rebuilds, this Intermediate Plate is frequently replaced alongside the 5838109012 DIFFERENTIAL and the 0750117075 TAPER ROLLER BEARING to restore proper gear mesh. The 2093209023 DIFFERENTIAL and 5838300626 DIFFERENTIAL HOUSING are also commonly inspected for wear when the intermediate plate shows signs of fatigue.
Frequently Asked Questions
Q: Can the 2093.377.056 Intermediate Plate be reused after a transmission overhaul?
A: No. This plate undergoes case hardening and is subject to microscopic stress fractures during service. ZF recommends mandatory replacement with a new OEM part during any major rebuild to prevent premature gear failure.
Q: How do I confirm this plate fits my ZF WG200 transmission?
A: Check the transmission’s serial number plate located on the bell housing. The 2093.377.056 is compatible with WG200 units built after 2008. Earlier models may require the 2093.377.055 variant.
Q: What torque specification is used for the bolts securing this plate?
A: The retaining bolts for the intermediate plate must be tightened to 85 Nm (63 ft-lbs) using a cross-tightening pattern. Always apply thread locker (Loctite 243) to prevent loosening under vibration.
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