Overview
The ZF 4657.130.082 is a critical OEM genuine component engineered specifically for the WG190 and WG210 series transmissions. This part functions as a precision-machined guide or support element within the hydraulic control assembly, ensuring accurate oil flow and pressure regulation during gear shifts. As a genuine ZF part, SKU 4657.130.082 guarantees exact fitment and long-term durability, reducing the risk of premature wear in high-torque applications. It is installed directly adjacent to the TRANSMISSION HOUSING, which provides the structural foundation for the entire gearbox assembly.
Symptoms of Failure
- Erratic or delayed gear engagement: When the 4657.130.082 wears, hydraulic pressure drops, causing hesitation when shifting from neutral to drive or reverse.
- Oil seepage around the control bore: A worn guide surface allows transmission fluid to bypass seals, leading to visible drips under the vehicle or at the bell housing.
- Harsh or clunking shifts: Inconsistent oil metering results in abrupt clutch pack engagement, particularly during low-speed maneuvers.
- Transmission overheating: Internal fluid leakage from a degraded 4657.130.082 reduces cooling efficiency, triggering thermal warnings on the dashboard.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4657.130.082 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| Outer Diameter | 48.2 mm |
| Inner Diameter | 22.5 mm |
| Length | 95.0 mm |
| OEM Reference | ZF 4657.130.082 |
Compatibility
This genuine ZF part is designed for the WG190 and WG210 series transmissions, commonly found in medium-duty trucks, buses, and off-highway equipment. It is also compatible with the WG180 and WG200 variants where the hydraulic control module shares the same bore dimensions. For complete assembly integrity, this component works in conjunction with the HOUS.FRONT SECT and the HOUSING REAR PART. Additionally, the HOUSING REAR SECTION provides the necessary sealing surface for the entire assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear and shaft support |
| 4657201166 | HOUS.FRONT SECT | Front section housing the input shaft and pump drive |
| 4657201170 | HOUSING REAR PART | Rear section enclosing the output shaft and bearings |
| 4657298102 | HOUSING REAR SECTION | Additional rear housing segment for planetary gear set |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning |
| 0636100801 | CAP SCREW | Fastener for securing housing sections together |
| 4656301148 | FIXING PLATE | Retaining plate for valve body and control components |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic fluid debris removal |
| 4657301033 | SCREEN SHEET | Secondary filter screen for high-pressure circuits |
| 0636100803 | CAP SCREW | High-tensile bolt for final housing closure |
Frequently Asked Questions
Q: Can the 4657.130.082 be reused after a transmission rebuild?
A: No. This is a wear-sensitive component. ZF recommends replacing the 4657.130.082 with a new OEM genuine part during any major overhaul to ensure proper hydraulic sealing and shift timing.
Q: How do I verify that this part fits my WG210 transmission?
A: Check the transmission serial number stamped on the bell housing. The 4657.130.082 is compatible with WG190 and WG210 models built after 2012. If your unit is older, cross-reference the bore diameter against the original part.
Q: What tools are required to install the 4657.130.082?
A: Installation requires a standard socket set, torque wrench, and a soft-faced mallet. Ensure the CYLINDRICAL PIN and CAP SCREW are replaced simultaneously to maintain alignment tolerances.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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