Overview
The ZF 4616.201.034 OIL DIPSTICK is a precision-engineered component designed specifically for the WG65 series transmission. This OEM genuine part provides a critical function: allowing operators and technicians to accurately measure transmission fluid levels within the sump. Positioned directly into the transmission housing, the dipstick ensures that the hydraulic system maintains proper oil volume for optimal clutch engagement and gear lubrication. The SKU 4616.201.034 is manufactured to ZF’s exacting tolerances, guaranteeing a secure seal and reliable readings over extended service intervals. When paired with the TRANSMISSION HOUSING, this dipstick forms a sealed interface that prevents contamination ingress while enabling quick fluid checks.
Symptoms of Failure
- Transmission fluid leaks at the dipstick tube: A worn or cracked dipstick seal can cause oil to weep from the insertion point, leading to low fluid levels and potential gear slipping.
- Inaccurate oil level readings: If the dipstick markings become illegible or the shaft bends, you may overfill or underfill the transmission, resulting in overheating or harsh shifting.
- Contaminated fluid ingress: A broken dipstick cap or degraded O-ring allows dirt and moisture to enter the sump, accelerating wear on internal components like the OUTPUT shaft bearings.
- Difficulty inserting or removing the dipstick: Warpage or corrosion on the dipstick shaft can cause binding, making routine fluid checks impossible without risking damage to the OUTPUT FLANGE seal.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4616.201.034 |
| Material | Steel with corrosion-resistant coating |
| Overall Length | Approx. 320 mm |
| Weight | 0.12 kg |
| OEM Reference | ZF 4616.201.034 |
| Seal Type | Integrated O-ring (compatible with 0634313118) |
| Thread Size | M14 x 1.5 (cap) |
Compatibility
This dipstick is engineered for the ZF WG65 series transmissions, which are commonly found in medium-duty commercial vehicles and industrial machinery. While primarily designed for the WG65, the 4616.201.034 part may also be compatible with WG80, WG100, and WG120 models that share the same sump depth and housing geometry. Always verify fitment by checking the transmission serial number. For secure installation, use the HEXAGON SCREW to fasten the dipstick tube bracket to the housing.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616105402 | OUTPUT | Transfers torque from transmission to driveshaft |
| 4005303005 | OUTPUT FLANGE | Connects output shaft to driveline components |
| 4616101119 | TRANSMISSION HOUSING | Main structural casing for gear and shaft assembly |
| 0636011038 | HEXAGON SCREW | Secures dipstick tube bracket to housing |
| 0636011118 | HEXAGON SCREW | Fastens output flange to output shaft |
| 0636016015 | HEXAGON SCREW | Mounts transmission housing to bellhousing |
| 0631306085 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0634313118 | O-RING | Seals dipstick tube to prevent oil leaks |
| 0636304019 | SCREW PLUG | Closes fill/check port on transmission |
| 0634801152 | SEALING RING | Provides leak-proof seal under screw plug |
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