Overview
The ZF 4651.231.014 OIL DIPSTICK is a precision-engineered component designed exclusively for the WG 100 Series transmission. This OEM genuine part provides a critical interface for verifying and maintaining proper fluid levels within the transmission sump, directly supporting lubrication and hydraulic pressure integrity. Mounted securely into the transmission housing, the dipstick allows operators to quickly assess oil condition and volume without disassembly. The SKU 4651.231.014 ensures exact fitment and reliable sealing, preventing contamination ingress that can compromise gear performance. When paired with a robust TRANSMISSION HOUSING, this dipstick becomes an essential checkpoint for routine transmission maintenance.
Symptoms of Failure
- Oil leaks around the dipstick tube: A worn or cracked dipstick seal allows transmission fluid to escape, leaving puddles under the vehicle and reducing lubricant levels.
- Inaccurate fluid level readings: If the dipstick markings become illegible or the rod bends, operators may overfill or underfill the transmission, leading to gear slipping or overheating.
- Contaminated fluid ingress: A degraded O-ring or loose fitment lets dirt and moisture enter the transmission, accelerating wear on internal components like the HOUSING and clutch packs.
- Difficult insertion or removal: Warping or corrosion of the dipstick handle or tube creates resistance, risking damage to the O-RING seal during routine checks.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4651.231.014 |
| OEM Reference | ZF 4651.231.014 |
| Material | Chrome-plated steel with rubber seal |
| Overall Length | Approx. 320 mm |
| Handle Diameter | 22 mm |
| Weight | 0.15 kg |
| Seal Type | Integrated O-ring (compatible with 0634303928) |
| Compatible Housing | WG 100 Series HOUSING |
Compatibility
This dipstick is engineered specifically for the ZF WG 100 Series transmission family. While primarily designed for the WG100 model, it also fits the WG180 and WG200 variants due to shared sump geometry and mounting points. Always verify that the dipstick tube aligns with the TRANSMISSION HOUSING port to ensure a leak-free seal. For other ZF series (e.g., WG120 or WG250), consult your parts manual to confirm cross-compatibility.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101007 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4651301029 | HOUSING | Secondary housing for valve body |
| 0634303928 | O-RING | Seal for dipstick tube connection |
| 4651301024 | HOUSING | Rear housing for output shaft |
| 4651203002 | SCREEN SHEET | Filter mesh for oil pickup |
| 4651303005 | SCREEN SHEET | Secondary filter element |
| 0636101032 | CAP SCREW | Fastener for housing cover |
| 0630361028 | SEALING CAP | Protective cap for unused ports |
| 4475280060 | SCREW PLUG | Threaded plug for drain/fill holes |
| 0634303312 | O-RING | Seal for screw plug |
