Overview
The ZF 4657.231.002 OIL DIPSTICK is a precision-machined measurement tool designed exclusively for the WG190 and WG210 series transmissions. This OEM genuine part allows operators to verify fluid levels accurately, ensuring the hydraulic system maintains proper lubrication and cooling pressure. Positioned directly into the transmission housing, the dipstick provides a critical visual check point for maintenance crews. The SKU 4657.231.002 is manufactured to ZF’s exacting tolerances, guaranteeing a secure seal and reliable readings throughout the service life of the transmission.
Symptoms of Failure
When the ZF 4657.231.002 oil dipstick begins to wear, operators may notice transmission fluid leaking from the dipstick tube during operation, often leaving puddles under the vehicle. A second common symptom is inaccurate oil level readings caused by a warped or corroded dipstick blade, leading to overfilling or underfilling. Third, a loose or broken dipstick handle can allow contaminants to enter the transmission, accelerating internal wear. Finally, gear slipping under load may occur if low fluid levels go undetected due to a faulty dipstick seal.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.231.002 |
| Material | Chrome-plated steel with rubber O-ring |
| Overall Length | 385 mm |
| Blade Width | 8 mm |
| Weight | 0.12 kg |
| OEM Reference | ZF 4657.231.002 |
| Seal Type | Integrated O-ring (replaceable) |
Compatibility
This dipstick is engineered for the ZF WG190 and WG210 transmission families. It is also compatible with the WG180, WG200, and select WG220 variants that share the same oil pan and tube geometry. Always verify the part number 4657.231.002 against your transmission’s serial plate before installation. The dipstick interfaces directly with the TRANSMISSION HOUSING and works in conjunction with the HOUS.FRONT SECT to maintain proper alignment.
During replacement, technicians often inspect the HOUSING REAR PART for cracks and the CYLINDRICAL PIN for wear, as these components secure the dipstick tube assembly. Proper torque on the dipstick cap prevents vibration loosening and subsequent fluid loss.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101031 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201027 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201020 | HOUSING REAR PART | Rear section housing for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636100801 | CAP SCREW | Fastener for housing cover |
| 4656301148 | FIXING PLATE | Secures dipstick tube to housing |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for oil pickup |
| 0636100803 | CAP SCREW | Fastener for valve body cover |
| 4681301040 | OIL FEED.HOUSG. | Distributes oil to clutch packs |
Frequently Asked Questions
Q: How do I know if the 4657.231.002 dipstick is the correct length for my WG210 transmission?
A: Measure the distance from the top of the dipstick tube to the bottom of the oil pan. The OEM dipstick is 385 mm overall. If your existing dipstick is shorter or longer, verify the part number against your transmission model tag.
Q: Can I replace the O-ring on the dipstick without buying a new assembly?
A: Yes, the O-ring is serviceable. However, ZF recommends replacing the entire 4657.231.002 dipstick if the blade shows scoring or bending, as these defects cause inaccurate readings.
Q: Will this dipstick fit a ZF WG180 transmission from 1998?
A: The WG180 uses the same oil pan geometry as the WG190, so this dipstick is compatible. Always cross-reference your transmission serial number with the OEM parts catalog to confirm.
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Phone: +86 158 2286 3467 |
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