Overview
The ZF 4656.185.062 ACCESSORIES for WG171 is a critical OEM genuine component designed to support the internal hydraulic and mechanical systems of the WG 171 Series transmission. This accessory kit facilitates proper fluid routing and pressure regulation within the valve body and clutch pack assemblies. As a precision-engineered part, the 4656.185.062 ensures that the transmission maintains consistent lubrication and cooling under heavy-duty industrial loads. It integrates directly with the 4656101028: TRANSMISSION HOUSING and the 4656301066: HOUS.FRONT SECT to create a sealed, high-pressure environment for smooth gear engagement.
Symptoms of Failure
- Hydraulic fluid seepage around the valve body: When the 4656.185.062 accessory wears, you may notice oil leaks near the transmission housing interface, often mistaken for a failing gasket.
- Intermittent gear slipping under load: A degraded accessory can cause pressure drops, leading to delayed or erratic shifting during heavy equipment operation.
- Unusual whining or grinding noises: Worn components within this kit can allow metal-on-metal contact, producing audible distress signals from the transmission sump.
- Overheating during extended use: Reduced fluid flow from a failing accessory forces the transmission to run hotter, triggering warning lights or thermal shutdowns.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | 4656.185.062 |
| Material | Hardened steel with corrosion-resistant coating |
| Weight | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| OEM Reference | ZF 4656.185.062 |
| Compatible Seals | 0634313514: O-RING |
| Mounting Hardware | 0636100803: CAP SCREW |
Compatibility
This OEM genuine accessory is engineered for the ZF WG 171 Series, but it also fits select models in the WG180 and WG200 families due to shared hydraulic architectures. It is commonly used in industrial transmissions for forklifts, loaders, and agricultural machinery. For proper installation, ensure the 4656201015: SCREEN SHEET and 4656301037: TUBE are inspected for debris or damage during service.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101028 | TRANSMISSION HOUSING | Encloses gear train and supports bearing alignment |
| 4656301066 | HOUS.FRONT SECT | Front section housing for pump and valve body |
| 4656201015 | SCREEN SHEET | Filters debris from hydraulic fluid flow |
| 4656301037 | TUBE | Routes pressurized oil to clutch packs |
| 0634313514 | O-RING | Seals connections to prevent fluid leaks |
| 0636100803 | CAP SCREW | Secures housing sections with precise torque |
| 4656301042 | HOUSING REAR PART | Rear section housing for output shaft support |
| 0631306816 | CYLINDRICAL PIN | Aligns housing halves during assembly |
| 0636100801 | CAP SCREW | Fastens accessory bracket to transmission |
| 0636100160 | CAP SCREW | Mounts oil cooler lines to the housing |
Frequently Asked Questions
Q: How do I know if the 4656.185.062 accessory is failing?
A: Look for slow fluid drips from the transmission housing joint or a gradual loss of shift pressure. A visual inspection of the SCREEN SHEET for metal particles can confirm internal wear.
Q: Can I install this part without replacing the O-rings?
A: ZF recommends replacing the O-RING and CAP SCREW simultaneously to ensure a leak-free seal and proper torque retention.
Q: Is this part compatible with the WG180 transmission?
A: Yes, the 4656.185.062 is cross-compatible with WG180 and WG200 models, but always verify the HOUS.FRONT SECT alignment before final assembly.
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Phone: +86 158 2286 3467 |
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