Overview
The ZF 5838.300.314 INTERMEDIATE WASHER is a precision-engineered OEM genuine component designed to maintain critical axial clearances within the planetary gear sets of heavy-duty construction machinery transmissions. This hardened steel washer sits between the intermediate shaft and the adjacent gear assembly, absorbing thrust loads and preventing metal-to-metal contact during high-torque operations. As an integral part of the drivetrain, the SKU 5838.300.314 ensures that the gear train remains properly spaced, reducing vibration and extending the service life of surrounding components. When paired with a REAR AXLE and DIFFERENTIAL, this washer helps maintain the precise alignment necessary for smooth power transfer in demanding off-highway applications.
Symptoms of Failure
- Transmission gear slipping under load: A worn intermediate washer allows excessive axial play, causing gears to lose proper engagement and slip during heavy lifting or climbing.
- Metallic grinding noise from the transmission housing: As the washer thins, hardened steel surfaces contact directly, producing a distinct grinding sound that worsens with acceleration.
- Oil contamination with metallic particles: Degraded washer material sheds fine steel debris into the transmission fluid, visible during routine oil changes as glitter-like particles.
- Intermittent driveline vibration at low speeds: Uneven wear on the 5838.300.314 creates imbalance in the intermediate shaft assembly, causing noticeable shuddering when maneuvering in tight construction sites.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 5838.300.314 |
| Material | Case-hardened alloy steel (SAE 8620 equivalent) |
| Outer Diameter | 72.0 mm |
| Inner Diameter | 38.5 mm |
| Thickness | 3.2 mm |
| Hardness | 58-62 HRC |
| Weight | 0.085 kg |
| OEM Reference | ZF 5838.300.314 |
Compatibility
This intermediate washer is engineered for ZF WG series transmissions commonly found in wheel loaders, telehandlers, and graders. It is a direct fit for the following ZF models: WG180, WG200, WG211, and WG310. The 5838.300.314 is also used in certain variants of the ZF 4WG-200 and 4WG-310 powershift transmissions. For complete drivetrain restoration, this washer should be installed alongside a new TAPER ROLLER BEARING and a DIFFERENTIAL HOUSING to ensure proper preload and alignment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 5838022003 | REAR AXLE | Transfers torque from differential to wheels |
| 5838109001 | DIFFERENTIAL | Distributes power between left and right wheels |
| 0750117075 | TAPER ROLLER BEARING | Supports radial and axial loads on shafts |
| 5838300128 | DIFFERENTIAL HOUSING | Encloses and supports differential gears |
| 0631329086 | SPRING PIN | Secures components against rotational movement |
| 5838300129 | THRUST WASHER | Manages axial clearance in gear sets |
| 5838300130 | THRUST WASHER | Secondary axial load distribution |
| 5838300131 | AXLE BEVEL GEAR | Changes torque direction in final drive |
| 5838300132 | COMPENS. STUB AXLE | Compensates for axle length variations |
| 5838300133 | COMPENS. STUB AXLE | Opposite-side axle compensation |
