Overview
The ZF 4656.201.087 is a critical OEM genuine component engineered specifically for the WG 160 series transmission. This precision-machined part functions as a structural and hydraulic interface within the gearbox assembly, ensuring proper alignment and fluid routing for consistent power delivery. The SKU 4656.201.087 is designed to meet ZF’s exacting tolerances, reducing internal wear and maintaining system pressure. When installed alongside the 4656201085: HOUS.FRONT SECT, it forms a sealed unit that protects internal components from contamination and vibration.
Symptoms of Failure
- Oil leaks at the front housing interface: A worn 4656.201.087 can cause transmission fluid to seep past the mating surface, leading to low fluid levels and overheating.
- Intermittent gear slipping under load: When this part loses dimensional stability, hydraulic pressure drops, causing delayed or erratic shifting in the WG 160.
- Unusual whining or grinding noises: Misalignment from a degraded component accelerates bearing wear, producing audible metal-on-metal contact during operation.
- Difficulty engaging forward or reverse gears: A compromised seal or cracked housing disrupts oil feed, resulting in harsh engagement or complete loss of drive.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4656.201.087 |
| Material | High-strength aluminum alloy with corrosion-resistant coating |
| Weight | 1.85 kg (4.08 lbs) |
| Dimensions (L x W x H) | 210 mm x 95 mm x 65 mm |
| OEM Reference | ZF 4656.201.087 (Genuine) |
| Sealing Surface Finish | Ra 0.8 µm |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This OEM genuine part is primarily designed for the ZF WG 160 series transmission. It is also compatible with the WG 180 and WG 200 models when used with the correct mounting hardware. For a secure installation, always pair the 4656.201.087 with the 0636115293: 螺栓 and the 0634313603: O-RING to prevent fluid bypass. Additionally, the 0631306816: CYLINDRICAL PIN ensures precise alignment during reassembly, eliminating the risk of premature failure.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656201085 | HOUS.FRONT SECT | Front housing section providing structural support and oil channel routing |
| 0636115293 | 螺栓 | Mounting bolt for securing housing components |
| 0634313603 | O-RING | Elastomeric seal preventing fluid leakage at joints |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise component positioning |
| 4656301148 | FIXING PLATE | Retains internal components against axial movement |
| 0636100817 | CAP SCREW | High-tensile fastener for critical joints |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4656301017 | SCREEN SHEET | Secondary filter for debris protection |
| 0636100803 | CAP SCREW | Low-profile fastener for confined spaces |
| 4656301047 | OIL FEED.HOUSG. | Distributes pressurized oil to clutch packs |
Frequently Asked Questions
Q: Can the ZF 4656.201.087 be reused after a transmission rebuild?
A: No. This OEM genuine part is a single-use component due to its precision sealing surfaces and material stress limits. Always replace it with a new unit during overhaul to avoid leaks and alignment issues.
Q: What tools are needed to install the 4656.201.087 on a WG 160?
A: Standard metric sockets (10mm to 18mm), a torque wrench calibrated to 45 Nm for the cap screws, and a seal driver for the O-ring. The cylindrical pin requires a soft-faced mallet for gentle seating.
Q: How does this part differ from aftermarket alternatives?
A: The genuine ZF 4656.201.087 uses OEM-spec aluminum alloy with a specific anodized coating that aftermarket parts often lack. This coating resists galvanic corrosion and maintains dimensional stability under thermal cycling, ensuring longer service life.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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