Overview
The ZF 4657.185.004 ACCESSORIES for WG210 is a critical OEM genuine component designed to support the internal sealing and alignment functions within the WG 210 Series transmission. This accessory kit, referenced by SKU 4657.185.004, integrates directly with the main housing assembly to ensure proper fluid routing and mechanical stability. It is typically mounted between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, acting as a buffer that reduces vibration and prevents contamination ingress. As a genuine ZF part, it guarantees exact fitment and long service life, making it essential for maintaining transmission integrity in heavy-duty applications.
Symptoms of Failure
When the ZF 4657.185.004 accessory wears out, operators often notice specific performance declines. Common failure symptoms include:
- External oil seepage around the housing joint: A degraded accessory can break the seal between the HOUSING REAR PART and the main body, leading to visible drips.
- Intermittent gear engagement hesitation: Loss of alignment support may cause slight misalignment, resulting in delayed shifting under load.
- Increased transmission noise during operation: Worn accessories fail to dampen harmonics, producing a distinct whine or rattle from the housing area.
- Contaminated fluid from external debris: A compromised accessory allows dirt to bypass the HOUSING REAR SECTION seal, accelerating internal wear.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number (SKU) | 4657.185.004 |
| OEM Reference | ZF 4657.185.004 |
| Material | Reinforced polymer with steel insert |
| Weight | 0.45 kg (approx.) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 25 mm |
| Compatible Fasteners | CAP SCREW (0636100801) and CAP SCREW (0636100803) |
| Mounting Hardware | CYLINDRICAL PIN (0631306816) |
Compatibility
This accessory is engineered for the ZF WG 210 Series, but it also fits select models in the WG180 and WG200 families due to shared housing architecture. It is directly compatible with transmissions using the TRANSMISSION HOUSING and HOUS.FRONT SECT assemblies. For precise fitment, always verify your transmission serial number against the WG210 parts catalog.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201168 | HOUSING REAR PART | Rear housing segment for output bearing retention |
| 4657298101 | HOUSING REAR SECTION | Complete rear housing unit for PTO integration |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing mating surfaces |
| 0636100801 | CAP SCREW | Fastener for securing front housing sections |
| 4656301148 | FIXING PLATE | Locking plate to prevent fastener loosening |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit protection |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for debris exclusion |
| 0636100803 | CAP SCREW | Fastener for rear housing attachment points |
Frequently Asked Questions
Q: Can the ZF 4657.185.004 be reused after a transmission overhaul?
A: No. This accessory is a single-use component due to its crush-seal design. Always replace it with a new OEM part during any housing disassembly to prevent leaks.
Q: Does this part require special tools for installation?
A: Standard hand tools are sufficient, but we recommend using a torque wrench with the CAP SCREW (0636100801) to achieve the specified 25 Nm tightening value.
Q: How does this accessory interact with the HOUSING REAR SECTION?
A: It sits between the rear section and the main housing, providing a sealed channel for oil return flow while damping structural vibrations.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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