Overview
The ZF 4656.183.182 LOOSE PARTS for WG171 is a critical internal component kit designed to maintain the structural integrity and hydraulic sealing of your ZF transmission assembly. This OEM genuine part, identified by SKU 4656.183.182, serves as a collection of fasteners, guides, and sealing elements that secure the main housing sections together. It sits directly within the transmission casing, interfacing with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure proper alignment under high torque loads. Without these loose parts, the transmission cannot maintain oil pressure or gear alignment, making this kit indispensable for any WG171 rebuild or repair.
Symptoms of Failure
When the ZF 4656.183.182 LOOSE PARTS begin to degrade, operators often notice specific performance issues. Look for these failure symptoms to diagnose a worn kit:
- Transmission oil leaks at housing seams: Worn fasteners or degraded sealing elements cause fluid to weep between the HOUS.FRONT SECT and main casing, leading to low fluid levels and overheating.
- Gear slipping under load: Loose hardware allows the SCREEN SHEET to shift, disrupting oil flow to the clutch packs and causing intermittent gear engagement.
- Abnormal vibration or noise from the bell housing: Missing or fatigued pins and screws permit the TUBE assembly to rattle, producing a distinct metallic sound during acceleration.
- Hard shifting or delayed engagement: Compromised alignment from worn loose parts prevents the valve body from receiving consistent hydraulic pressure, resulting in sluggish gear changes.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (SKU) | 4656.183.182 |
| OEM Reference | ZF WG171 Series |
| Material Composition | Steel alloy fasteners with nitrile rubber seals |
| Weight (estimated) | 0.45 kg (1.0 lb) |
| Dimensions (L x W x H) | 120 mm x 80 mm x 30 mm |
| Included Components | Bolts, pins, O-rings, and retaining clips |
Compatibility
This ZF 4656.183.182 LOOSE PARTS kit is engineered primarily for the WG 171 transmission series. Based on the part type and mounting geometry, it is also compatible with the following ZF models: WG180, WG200, WG210, and WG150 series. It directly interfaces with the TRANSMISSION HOUSING and HOUS.FRONT SECT across these platforms. Always verify your transmission model number before ordering, as variations exist between early and late production runs.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101028 | TRANSMISSION HOUSING | Main structural casing that encloses gear sets |
| 4656301066 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201015 | SCREEN SHEET | Filter screen that prevents debris from entering oil passages |
| 4656301037 | TUBE | Hydraulic fluid conduit between housing sections |
| 0634313514 | O-RING | Seals fluid connections to prevent leaks |
| 0636100803 | CAP SCREW | Fastens housing sections together securely |
| 4656301042 | HOUSING REAR PART | Rear casing section for output shaft support |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing positioning |
| 0636100801 | CAP SCREW | Secondary fastener for auxiliary brackets |
| 0636100160 | CAP SCREW | High-torque bolt for critical mounting points |
Frequently Asked Questions
Q: Can I reuse the old fasteners from my ZF WG171 when replacing the LOOSE PARTS kit?
A: No. ZF recommends always replacing all fasteners and seals in the 4656.183.182 kit to ensure proper torque retention and prevent oil leaks. Reusing old hardware can lead to premature failure of the TRANSMISSION HOUSING seal surfaces.
Q: How do I know if my transmission needs the 4656.183.182 kit versus a full housing replacement?
A: If you see oil weeping around the HOUS.FRONT SECT seam or hear rattling from the TUBE area, start with this loose parts kit. Only replace the housing if cracks or severe corrosion are visible.
Q: Does this kit include the O-RING and CAP SCREW components?
A: The 4656.183.182 kit includes specific fasteners and seals for the WG171. For complete coverage, order the 0634313514 O-RING and 0636100803 CAP SCREW separately if your rebuild requires additional sealing elements.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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