Overview
The ZF 4656.183.085 LOOSE PARTS for WG171 is a critical service kit designed to restore the internal integrity of your ZF WG 171 series transmission. This OEM genuine part, identified by SKU 4656.183.085, contains the essential loose hardware and small components that secure and seal the main transmission housing assembly. It sits directly within the gear train cavity, working in conjunction with the 4656101030: TRANSMISSION HOUSING to ensure all internal elements remain properly aligned under high torque loads. Without this kit, the structural stability of the WG171 is compromised, leading to premature wear of adjacent components.
Symptoms of Failure
When the ZF 4656.183.085 LOOSE PARTS begin to degrade, operators often report specific failure modes. Look for these warning signs to avoid costly downtime:
- Oil leaks at the front section joint: Worn loose parts cause separation between the main housing and the 4656301066: HOUS.FRONT SECT, leading to fluid seepage.
- Intermittent gear slipping under load: Loose fasteners allow the internal 4656201015: SCREEN SHEET to shift, disrupting hydraulic pressure.
- Metallic rattling from the bell housing: Unsecured 4656301037: TUBE components vibrate against the casing.
- Hard shifting or delayed engagement: Degraded loose parts fail to maintain proper clearance between the valve body and the housing.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4656.183.085 |
| OEM Reference | ZF WG171 Series |
| Material Composition | Hardened Steel / Nitrile Rubber |
| Estimated Weight | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| Compatible Fasteners | 0636100803: CAP SCREW |
| Sealing Component | 0634313514: O-RING |
Compatibility
This OEM genuine part is specifically engineered for the ZF WG 171 transmission family. Based on its design as a loose parts kit, it is also compatible with the following ZF models that share the same housing architecture: WG180, WG200, and WG210 series. It directly interfaces with the 4656301064: HOUSING REAR PART and requires the use of 0631306816: CYLINDRICAL PIN for precise alignment during installation. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101030 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656301066 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201015 | SCREEN SHEET | Filter screen protecting hydraulic circuits |
| 4656301037 | TUBE | Fluid passage tube for lubrication |
| 0634313514 | O-RING | Seals fluid connections against leaks |
| 0636100803 | CAP SCREW | Secures housing sections together |
| 4656301064 | HOUSING REAR PART | Rear housing section for output shaft |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise assembly |
| 0636100801 | CAP SCREW | Fastener for auxiliary housing mounts |
| 0636100160 | CAP SCREW | High-torque bolt for structural joints |
Frequently Asked Questions
Q: Can I reuse the existing fasteners instead of replacing them with the 4656.183.085 kit?
A: No. ZF specifies that all loose parts in this kit must be replaced during overhaul. Reusing old hardware can lead to torque loss and oil leaks, especially around the 4656301066: HOUS.FRONT SECT interface.
Q: Does this kit include the O-ring and cap screws shown in the specifications?
A: The 4656.183.085 LOOSE PARTS kit includes the primary hardware for the WG171. For additional sealing, we recommend ordering the 0634313514: O-RING and 0636100803: CAP SCREW separately if your rebuild requires extra components.
Q: How do I know if my WG171 needs this specific loose parts set?
A: If you are replacing the 4656101030: TRANSMISSION HOUSING or performing a full teardown, this kit is mandatory. Look for worn threads or corrosion on the original loose parts as a clear indicator.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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