Overview
This OEM genuine ZF 4657.171.057 is a critical internal component designed for the WG190, WG191, WG210, and WG211 series transmissions. It functions as a precision-machined guide or spacer element within the valve body or clutch pack assembly, ensuring correct hydraulic fluid routing and component alignment. The SKU 4657.171.057 is manufactured to ZF’s exacting tolerances, providing a direct replacement that restores factory shift quality and pressure regulation. When installed alongside the 4657101085: TRANSMISSION HOUSING, it helps maintain the structural integrity of the internal oil circuits.
Symptoms of Failure
- Erratic or delayed gear engagement: A worn 4657.171.057 can cause inconsistent hydraulic pressure, leading to hesitation when shifting from Park to Drive or between forward gears.
- Low transmission fluid pressure warnings: Internal leakage past this component often triggers diagnostic trouble codes related to pressure control solenoids.
- Oil seepage around the valve body area: Deterioration of the sealing surfaces results in visible fluid residue on the transmission pan or housing flanges.
- Harsh or slipping shifts under load: As the part loses its dimensional stability, clutch pack engagement becomes unpredictable, especially during uphill driving or towing.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.171.057 |
| Material | Hardened steel with anti-corrosion coating |
| Weight | 0.45 kg (1.0 lb) |
| Length | 85 mm |
| Width | 40 mm |
| Height | 25 mm |
| OEM Reference | ZF 4657.171.057 |
| Compatible Housing | 4657201161: HOUS.FRONT SECT |
| Rear Housing Match | 4657201162: HOUSING REAR PART |
Compatibility
This genuine ZF part is engineered for the WG180, WG190, WG191, WG200, WG210, and WG211 transmission series. It is specifically validated for use with the 4657298107: HOUSING REAR SECTION in the WG210/211 assemblies. While primarily designed for on-highway truck applications, it also suits off-road equipment using the WG180 and WG200 variants. Always verify your transmission model code before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101085 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201161 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201162 | HOUSING REAR PART | Rear portion of the housing assembly |
| 4657298107 | HOUSING REAR SECTION | Complete rear housing section for WG210 |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | Fastener for housing sections |
| 4656301148 | FIXING PLATE | Retains internal components in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4657301033 | SCREEN SHEET | Secondary filter screen for oil return |
| 0636100803 | CAP SCREW | Mounting bolt for valve body |
Frequently Asked Questions
Q: Can I install the 4657.171.057 without replacing the housing sections?
A: Yes, this part is a standalone component. However, we recommend inspecting the 4657201161: HOUS.FRONT SECT and 4657201162: HOUSING REAR PART for wear if the transmission has high mileage.
Q: What is the typical lifespan of this OEM part?
A: Under normal operating conditions, the 4657.171.057 lasts the life of the transmission. Premature failure usually indicates contamination in the hydraulic system or improper installation of the 4657301032: SCREEN SHEET.
Q: Does this part fit the WG180 transmission?
A: Yes, it is compatible with the WG180 series. Ensure you also check the 4657298107: HOUSING REAR SECTION for proper alignment during reassembly.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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