Overview
The ZF 4657.183.402 is a precision-engineered OEM genuine part designed specifically for the WG 190 Series transmission. This component functions as a critical sealing and alignment interface within the transmission housing assembly, ensuring proper fluid containment and structural integrity under high-torque conditions. The SKU 4657.183.402 is manufactured to ZF’s exacting tolerances, making it an essential replacement for maintaining the durability and shift quality of your WG190 gearbox. When installed correctly, this part works in concert with the 4657101082: TRANSMISSION HOUSING to create a leak-proof seal that withstands extreme thermal cycling.
Symptoms of Failure
When the ZF 4657.183.402 begins to degrade, operators typically notice three distinct failure modes. Oil seepage around the housing joint is the most common early indicator, often appearing as a thin film of ATF near the WG190’s mid-section. Intermittent gear engagement hesitation occurs when the part loses its dimensional stability, causing slight misalignment in the shift linkage. Abnormal transmission noise during load changes — a low-frequency hum or metallic chatter — signals that the component has fatigued and requires immediate replacement. For fleet managers, these symptoms directly correlate with reduced transmission service life if ignored.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4657.183.402 |
| Material | High-grade aluminum alloy with corrosion-resistant coating |
| Weight | 1.45 kg (3.2 lbs) |
| Dimensions (L x W x H) | 210 mm x 85 mm x 45 mm |
| OEM Reference | ZF WG 190 Series |
| Operating Temperature Range | -40°C to +150°C |
| Torque Capacity | Up to 1,200 Nm |
Compatibility
This genuine ZF part is engineered for the WG 190 Series transmission family, with confirmed fitment across WG180, WG190, and WG200 models produced after 2015. It is also compatible with select ZF off-highway transmissions that share the same housing architecture. For proper installation, this component must be paired with the 4657201166: HOUS.FRONT SECT and the 4657201170: HOUSING REAR PART to maintain correct alignment. Additionally, the 4657298102: HOUSING REAR SECTION is often replaced simultaneously to ensure uniform wear patterns across the assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural enclosure for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201170 | HOUSING REAR PART | Rear housing segment for output bearing retention |
| 4657298102 | HOUSING REAR SECTION | Reinforced rear section for high-load applications |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100801 | CAP SCREW | M10 fastener for housing attachment |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for suction side |
| 0636100803 | CAP SCREW | M12 fastener for heavy-duty housing joints |
Frequently Asked Questions
Q: How do I know if the 4657.183.402 needs replacement?
A: Look for visible oil residue on the WG190’s housing seam, especially after extended highway operation. If you notice a gradual drop in transmission fluid level without external puddles, this part may be compromised.
Q: Can I reuse the old gasket or seal when installing this part?
A: No. The 4657.183.402 is designed as a single-use component. Reusing old sealing surfaces will void the OEM fitment guarantee and likely cause immediate leakage.
Q: Is this part compatible with the ZF WG180 transmission?
A: Yes, the 4657.183.402 is cross-compatible with WG180, WG190, and WG200 models. Always verify your transmission’s serial number against ZF’s compatibility chart for absolute confirmation.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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