Overview
The ZF 4660.322.001 STOP SLEEVE is a precision-machined component engineered for the WG200, WG92, and WG98 series transmissions. This OEM genuine part functions as a critical axial stop within the clutch or planetary gear assembly, preventing unwanted lateral movement of internal shafts and ensuring correct gear engagement. The SKU 4660.322.001 is manufactured to ZF’s original tolerances, providing a direct replacement without the need for modifications. When installed alongside the 4660198001 PERIPHERALS kit, it helps maintain proper hydraulic flow and shift timing within the transmission housing.
Symptoms of Failure
When the 4660.322.001 STOP SLEEVE wears beyond specification, operators often report the following failure modes:
- Intermittent gear slipping under load: A worn sleeve allows axial play, causing clutch packs to partially disengage during torque transfer.
- Hard or delayed shifting between ranges: The 0501209818 RANGE SELECTOR may struggle to engage gears if the stop sleeve no longer holds the shift rail in its correct position.
- Metallic debris in transmission oil: As the sleeve surface degrades, fine steel particles contaminate the fluid, often visible during drain intervals.
- Abnormal driveline vibration: Excessive clearance from a collapsed sleeve can induce harmonic vibrations through the 4660101011 TRANSMISSION HOUSING.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4660.322.001 |
| Material | Case-hardened alloy steel |
| Outer Diameter | 42.0 mm |
| Inner Diameter | 28.5 mm |
| Length | 18.0 mm |
| Weight | 0.085 kg |
| OEM Reference | ZF 4660 322 001 |
| Surface Finish | Ground and phosphate-coated |
Compatibility
This stop sleeve is directly compatible with ZF WG180, WG200, WG92, and WG98 series transmissions. It is also used in certain WG150 variants where the clutch housing requires a hardened axial stop. The part interfaces with the 4660301018 HOUSING assembly and must be paired with the correct 0634100317 O-RING to prevent fluid bypass. For full rebuilds, always inspect the 4660221012 SUCTION TUBE for wear simultaneously.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4660198001 | PERIPHERALS | Hydraulic circuit seals and gaskets |
| 0501209818 | RANGE SELECTOR | Shift rail and detent mechanism |
| 4660101011 | TRANSMISSION HOUSING | Main structural casing |
| 4660301018 | HOUSING | Clutch drum support housing |
| 0631306174 | CYLINDRICAL PIN | Alignment dowel for housing |
| 0769123894 | TYPE PLATE | Identification tag for transmission |
| 4660221012 | SUCTION TUBE | Oil pickup tube assembly |
| 0634100317 | O-RING | Static seal for hydraulic ports |
| 0636103273 | CAP SCREW | Fastener for housing cover |
| 0750100022 | SCREW PLUG | Drain/fill port plug |

