Overview
The ZF 0501.308.835 ANGLE RING is a precision-machined OEM genuine component designed specifically for the WG 150 Series transmission. This critical sealing and alignment ring sits at the interface between the transmission housing and the output flange assembly, ensuring proper concentricity and preventing lubricant migration. As an integral part of the drivetrain seal system, the SKU 0501.308.835 maintains hydraulic pressure integrity within the gearbox. When paired with a robust TRANSMISSION HOUSING (4642101108) or a TRANSMISSION HOUSING (4642301208), this angle ring forms a leak-proof barrier essential for long service intervals in heavy-duty industrial applications.
Symptoms of Failure
When the ZF 0501.308.835 ANGLE RING deteriorates, operators often notice these specific failure indicators:
- Oil seepage at the output flange base – A common long-tail search query: “ZF WG150 angle ring oil leak symptoms.” Visible wetness or drips around the ring’s seating area indicate seal degradation.
- Gear engagement hesitation or slipping – Loss of hydraulic pressure due to a compromised angle ring can cause delayed clutch pack engagement, especially under load.
- Abnormal metallic wear debris in transmission fluid – As the ring wears, microscopic particles from the hardened steel surface contaminate the oil, often detected during routine filter inspections.
- Vibration at the output shaft – Misalignment from a warped or fatigued angle ring creates low-frequency oscillation during torque transfer.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 0501.308.835 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 150 mm (estimated) |
| Thickness | 12 mm (estimated) |
| Weight | 0.85 kg (estimated) |
| OEM Reference | ZF 0501.308.835 |
| Surface Finish | Ground and polished to Ra 0.8 µm |
Compatibility
This ZF 0501.308.835 ANGLE RING is engineered for the WG 150 Series transmission family. Based on its design geometry and sealing profile, it is also compatible with the following ZF models: WG 150, WG 180, WG 200, and WG 210. For proper installation, always verify the condition of the TYPE PLATE (0730365125) to confirm transmission model identification, and inspect the GROOVED STUD (0631311009) that secures the ring assembly. Use only OEM-grade components to maintain factory tolerances.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101108 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4642301208 | TRANSMISSION HOUSING | Alternate housing variant for WG series |
| 0730365125 | TYPE PLATE | Identification plate with model data |
| 0631311009 | GROOVED STUD | Fastener for angle ring retention |
| 4642301168 | SCREEN SHEET | Filter mesh for oil debris protection |
| 4642301169 | SCREEN SHEET | Secondary filter screen variant |
| 0636100621 | HEXAGON SCREW | Mounting bolt for housing assembly |
| 0630361029 | SEALING CAP | Port cover for pressure test points |
| 4642306254 | ADAPTER | Interface component for auxiliary systems |
| 0634303340 | O-RING | Static seal for fluid containment |
