Overview
The ZF 0501.226.328 OIL DIPSTICK is a precision-engineered diagnostic component designed exclusively for the WG 94 Series transmission. This OEM genuine part allows operators to accurately verify fluid levels and assess oil condition directly within the transmission sump. As a critical access point for routine maintenance, the dipstick ensures proper lubrication of internal assemblies, including the 4661103010: OUTPUT and the 4661303004: OUTPUT SHAFT. The SKU 0501.226.328 is the definitive replacement for worn or broken dipsticks, guaranteeing a factory-spec seal and accurate fluid readings.
Symptoms of Failure
- Transmission fluid seepage at the dipstick tube: A degraded O-ring or cracked handle on the 0501.226.328 allows oil to escape, leading to low fluid levels and potential overheating.
- Inaccurate fluid level readings: A warped or broken dipstick provides false readings, causing overfilling or underfilling that stresses the 4661201204: TAPER ROLLER BEARING and other rotating elements.
- Contaminated oil entering the transmission: A missing or loose dipstick cap permits dirt and moisture ingress, accelerating wear on the 4661201206: TAPERED ROLLER BEARING and clutch packs.
- Audible air ingestion during operation: A compromised dipstick seal can allow air into the sump, causing erratic gear engagement and slipping under load.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 0501.226.328 |
| Material | Reinforced nylon handle with steel shaft |
| Overall Length | Approx. 320 mm |
| Weight | 0.12 kg |
| OEM Reference | ZF 0501.226.328 |
| Seal Type | Integrated O-ring (replace with 0634306328) |
Compatibility
This dipstick is specifically engineered for the ZF WG 94 Series transmission family. While the WG94 is the primary application, the 0501.226.328 may also be compatible with select variants in the WG180 and WG200 series that share the same sump depth and tube diameter. Always cross-reference your transmission serial number with the OEM part number to confirm fitment. For related driveline components, inspect the 4661103800: OUTPUT and 4642303059: INPUT FLANGE during service intervals.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4661103010 | OUTPUT | Transfers torque from transmission to driveshaft |
| 4661303004 | OUTPUT SHAFT | Rotates within bearings to deliver power |
| 4661201204 | TAPER ROLLER BEARING | Supports radial and axial loads on shaft |
| 4661201206 | TAPERED ROLLER BEARING | Provides smooth rotation under heavy load |
| 4661372031 | SCREEN SHEET | Filters debris from transmission fluid |
| 4661103800 | OUTPUT | Alternative output flange for specific models |
| 4642303059 | INPUT FLANGE | Connects transmission to engine flywheel |
| 0750111307 | SHAFT SEAL | Prevents fluid leakage at rotating shafts |
| 0634306328 | O-RING | Seals dipstick tube connection |
| 4660303022 | WASHER | Distributes load under fasteners |
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