Overview
The ZF 0735.358.284 ROLLER CAGE is a precision-engineered component designed for the WG 100 Series transmission family. This OEM genuine part functions as the critical retaining structure for the needle rollers within the planetary gear set, ensuring correct roller spacing and load distribution during high-torque operation. Located within the rotating clutch drum assembly, the roller cage prevents metal-on-metal contact between the shaft and the gear hub. The SKU 0735.358.284 is manufactured to ZF’s original tolerances, guaranteeing a direct fit and long service life when replacing a worn unit.
Symptoms of Failure
When the ZF 0735.358.284 roller cage deteriorates, operators often report intermittent gear slipping under load due to roller misalignment. A second common symptom is whining or grinding noise from the transmission housing during gear engagement, particularly in first and reverse gears. Technicians may also detect metallic debris in the transmission oil pan during routine maintenance, indicating cage fracture. Finally, erratic shift timing or harsh engagement can occur as roller spacing becomes irregular, placing stress on the TRANSMISSION HOUSING and adjacent components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0735.358.284 |
| Material | Case-hardened steel (DIN 1.7131) |
| Outer Diameter | 72.5 mm |
| Inner Diameter | 58.0 mm |
| Width / Height | 22.4 mm |
| Roller Count | 22 rollers |
| Weight | 0.185 kg |
| OEM Reference | ZF 0735.358.284 |
| Operating Temp Range | -40°C to +120°C |
Compatibility
This roller cage is specifically engineered for the ZF WG 100 Series transmissions, including models WG100, WG120, WG150, WG180, and WG200. It is also compatible with certain variants of the ZF Ecomat 4HP and 5HP series where the planetary roller cage design matches. Always verify the internal clearance against the HOUSING and the O-RING seal groove before installation. For heavy-duty applications, pairing this cage with a new HOUSING is recommended to maintain proper axial play.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101006 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4651301034 | HOUSING | Intermediate housing for clutch pack support |
| 0634303928 | O-RING | Seals fluid passages between housing sections |
| 4651301013 | HOUSING | Rear housing for output shaft bearing |
| 4651301015 | SCREEN SHEET | Filters debris from lubrication oil |
| 4651301035 | SCREEN SHEET | Secondary oil filter for valve body circuit |
| 0630361028 | SEALING CAP | Closes unused hydraulic ports |
| 4475280060 | SCREW PLUG | Seals drain or test ports |
| 0634303312 | O-RING | Seals screw plug against leakage |
| 0630361063 | SEALING CAP | Protects sensor openings from contamination |
