Overview
The ZF 0730.161.317 WASHER is a precision-engineered OEM genuine component designed for the WG200 series transmissions. This hardened steel washer functions as a critical load-spreading element between rotating assemblies and stationary housings within the gearbox. Installed specifically in the planetary gear set and output shaft areas, part number 0730.161.317 ensures correct axial clearance and prevents metal-on-metal contact under high torque loads. When rebuilding a WG200, this washer is frequently replaced alongside the 4460115043: HOUSING to maintain proper bearing preload and shaft alignment.
Symptoms of Failure
- Transmission oil leaks at the output flange: A worn 0730.161.317 washer can allow the 4469315012: AXLE DRIVE HOUSING to shift, breaking the seal and causing fluid seepage.
- Gear slipping under load in WG200 series: Excessive washer wear reduces clamping force on the 0750117406: TAPER ROLLER BEARING, leading to intermittent power loss during acceleration.
- Metallic grinding noise from the transmission center: When this washer collapses, the 0750117802: TAPERED ROLLER BEARING loses its axial support, creating a distinct scraping sound.
- Vibration in the driveline at highway speeds: A deformed washer alters the stack height, causing the output shaft to wobble and transmit vibration to the chassis.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 0730.161.317 |
| Inner Diameter | 32.0 mm |
| Outer Diameter | 58.0 mm |
| Thickness | 2.5 mm |
| Material | Case-hardened steel (DIN 1.7131) |
| Weight | 0.045 kg |
| OEM Reference | ZF 0730.161.317 |
| Surface Finish | Ground, phosphate-coated |
Compatibility
This washer is specifically engineered for the ZF WG200 series transmissions, including the WG180, WG200, and WG220 variants. It is also used in select ZF Ecomat 4HP and 5HP models where the output shaft stack height matches the 2.5 mm specification. Always verify fitment by cross-referencing your transmission serial number with the 0730.161.317 part number. For related sealing needs, consider the 0734319337: SHAFT SEAL which is commonly replaced in the same service interval.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4460115043 | HOUSING | Encloses planetary gear set |
| 4469315012 | AXLE DRIVE HOUSING | Supports output shaft bearings |
| 0750117406 | TAPER ROLLER BEARING | Radial and axial load support |
| 0750117802 | TAPERED ROLLER BEARING | Counter-rotating shaft support |
| 0734319337 | SHAFT SEAL | Prevents fluid egress |
| 0730161451 | WASHER | Thrust washer for sun gear |
| 0730161452 | WASHER | Spacer for planetary carrier |
| 0730161453 | WASHER | Adjustment shim for bearing preload |
| 0730161340 | WASHER | Output flange spacer |
| 0730111750 | WASHER | Locking washer for nut retention |
