Overview
The ZF 0730.104.379 WASHER is a precision-engineered OEM genuine component designed for heavy-duty construction machinery transmissions. This hardened steel washer functions as a critical load-spreading element between rotating shafts and stationary housings, preventing metal-on-metal contact and maintaining precise axial clearances within the gear train. Installed directly within the transmission assembly, the SKU 0730.104.379 ensures that clamping forces from fasteners are evenly distributed, reducing stress concentrations that could lead to premature component fatigue. This washer is frequently replaced alongside the 2094101014: TRANSMISSION HOUSING and the 2094301046: HOUSING during major overhauls to guarantee proper alignment and sealing integrity.
Symptoms of Failure
- Transmission oil seepage at housing joints — When the 0730.104.379 washer deforms or cracks, it fails to maintain uniform pressure on the gasket, leading to slow oil leaks around the 2094298053: HOUSING interface.
- Audible metallic rattling during gear engagement — A worn washer creates excessive end-play in the shaft assembly, producing a distinct clattering noise when shifting under load.
- Gradual loss of hydraulic pressure — As the washer compresses unevenly, internal clearances increase, causing a measurable drop in line pressure and sluggish clutch pack response.
- Vibration through the driveline at highway speeds — Deteriorated washer thickness allows the shaft to wobble, transmitting harmonic vibrations to the chassis.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.104.379 |
| Material | Hardened Carbon Steel (C45E, 40-45 HRC) |
| Outer Diameter | 38.0 mm |
| Inner Diameter | 20.5 mm |
| Thickness | 3.0 mm |
| Weight | 18 grams |
| OEM Reference | ZF 0730.104.379 |
| Surface Finish | Phosphate coated, oiled |
Compatibility
This washer is engineered for ZF WG series powershift transmissions commonly found in wheel loaders, graders, and excavators. It is a direct fit for the WG180, WG200, and WG211 models, where it is used at the output shaft bearing retainer and clutch housing mounting points. For proper installation, always pair the 0730.104.379 with a new 0630361034: SEALING CAP to prevent debris ingress. The washer also interfaces with the 2094301071: COVER and 2094301030: GASKET to form a leak-proof joint.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 2094101014 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 2094301046 | HOUSING | Intermediate housing for clutch pack |
| 2094298053 | HOUSING | Rear output housing assembly |
| 0630361034 | SEALING CAP | Protects shaft end from contamination |
| 2094301071 | COVER | Access cover for valve body |
| 2094301030 | GASKET | Seals housing-to-cover interface |
| 0750111371 | SHAFT SEAL | Prevents oil leakage at rotating shaft |
| 0634303085 | O-RING | Static seal for hydraulic passages |
| 0631306670 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0636011356 | HEXAGON SCREW | Fastener for housing attachment |
