Overview
The ZF 4642.231.131 OIL DIPSTICK is a precision-engineered component designed specifically for the WG150 and WG160 series transmissions. This genuine OEM part allows operators and technicians to accurately measure transmission fluid levels, ensuring optimal lubrication and hydraulic pressure within the gearbox. Mounted directly into the transmission housing, the dipstick provides a reliable seal against contaminants while offering a clear, graduated reading surface. The SKU 4642.231.131 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn or damaged units. Proper fluid level checks using this dipstick are critical for preventing premature wear on internal assemblies such as the 4642101109: TRANSMISSION HOUSING and the 4642301205: TRANSMISSION HOUSING.
Symptoms of Failure
- Transmission fluid seepage around the dipstick tube: A degraded O-ring or cracked dipstick handle allows oil to escape, leading to low fluid levels and potential gear slipping during heavy loads.
- Inaccurate fluid level readings: A warped or broken dipstick shaft provides false readings, causing overfilling or underfilling. This often results in erratic shifting or overheating of the transmission.
- Visible oil spray on the bell housing: When the dipstick seal fails completely, pressurized fluid can spray onto nearby components, including the 0631311009: GROOVED STUD and surrounding brackets, creating a fire hazard and slippery undercarriage.
- Difficulty securing the dipstick cap: A stripped locking mechanism or broken handle makes it impossible to properly seat the dipstick, allowing dirt and moisture to enter the transmission.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number (SKU) | 4642.231.131 |
| Material | High-grade steel shaft with nylon handle and Viton O-ring |
| Overall Length | Approximately 320 mm (12.6 inches) |
| Weight | 0.12 kg (0.26 lbs) |
| OEM Reference | ZF 4642.231.131 (Genuine) |
| Thread Size | M18 x 1.5 (standard dipstick tube) |
| Operating Temperature Range | -40°C to +150°C |
Compatibility
While primarily designed for the WG150 and WG160 series, the 4642.231.131 dipstick is also compatible with several other ZF transmission models that share the same dipstick tube geometry. This includes the WG180, WG200, and certain variants of the WG210 series. It is commonly used in industrial machinery, construction equipment, and heavy-duty trucks. For proper fitment, always verify that the transmission housing matches the specifications of the 0730365125: TYPE PLATE on your unit. The dipstick interfaces directly with the oil pan and is secured by a 0631311009: GROOVED STUD in most assemblies.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4642101109 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4642301205 | TRANSMISSION HOUSING | Alternate housing variant for WG series |
| 0730365125 | TYPE PLATE | Identification plate with model and serial number |
| 0631311009 | GROOVED STUD | Fastener for dipstick tube bracket |
| 4642301168 | SCREEN SHEET | Fine mesh filter for oil pickup |
| 4642301169 | SCREEN SHEET | Alternate mesh filter for high-flow applications |
| 0636100621 | HEXAGON SCREW | Mounting bolt for transmission cover |
| 4642301186 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 4644106300 | SHIFT SYSTEM | Hydraulic valve body assembly for gear selection |
| 4644306500 | COVER PLATE | Protective plate for shift system access |
Frequently Asked Questions
Q: How do I know if the 4642.231.131 dipstick is the correct replacement for my ZF transmission?
A: Check the type plate on your transmission housing. If the model is WG150, WG160, WG180, or WG200, this dipstick is likely compatible. Also measure the existing dipstick length; the 4642.231.131 is approximately 320 mm overall.
Q: Can a damaged dipstick cause transmission failure?
A: Yes. A broken dipstick allows fluid loss and contamination. Low fluid levels can starve the hydraulic pump, leading to clutch pack slippage and eventual gear failure. Replace the dipstick immediately if the O-ring is cracked or the shaft is bent.
Q: Does this dipstick come with a new O-ring?
A: The genuine ZF 4642.231.131 includes a pre-installed Viton O-ring. For additional sealing, we recommend also inspecting the 0631311009: GROOVED STUD for wear during installation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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