Overview
The ZF 4656.183.360 LOOSE PARTS for WG171 is a critical internal service kit designed to restore the precision and hydraulic integrity of your ZF WG 171 series transmission. This OEM genuine part, identified by SKU 4656.183.360, contains the specific loose components that interface directly with the valve body and clutch pack assemblies. It ensures proper fluid routing and pressure regulation within the transmission housing. When installed alongside a new TRANSMISSION HOUSING and the HOUS.FRONT SECT, this kit guarantees that all internal clearances meet factory specifications for reliable operation.
Symptoms of Failure
When the components within the 4656.183.360 kit begin to degrade, operators often notice distinct performance issues. A primary symptom is erratic gear engagement or slipping during shifts, particularly under load, which indicates worn internal seals or spacers. Another common failure is low hydraulic pressure at the test port, leading to delayed forward or reverse engagement. You may also observe fine metallic debris in the transmission fluid during routine changes, signaling that a loose part has fractured. Finally, intermittent loss of drive in higher gears can occur as these parts fail to maintain proper clamping force on the clutch packs.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4656.183.360 |
| OEM Reference | ZF WG171 Series |
| Material Composition | Hardened Steel & High-Temp Polymer |
| Estimated Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF 4656.183.360 loose parts kit is engineered specifically for the WG 171 transmission series. It is also compatible with the closely related WG 180 and WG 200 models that share the same internal architecture. For proper assembly, this kit works in conjunction with the SCREEN SHEET for filtration and the TUBE for fluid transfer. Always verify your transmission model code before ordering to ensure a precise fit.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101028 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656301066 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4656201015 | SCREEN SHEET | Fine mesh filter for hydraulic fluid |
| 4656301037 | TUBE | Fluid transfer conduit between sections |
| 0634313514 | O-RING | Seals fluid passages to prevent leaks |
| 0636100803 | CAP SCREW | Fastener for housing sections |
| 4656301042 | HOUSING REAR PART | Rear casing for output shaft support |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise assembly |
| 0636100801 | CAP SCREW | Mounting bolt for valve body |
| 0636100160 | CAP SCREW | Secures oil pan to housing |
Frequently Asked Questions
Q: Can the 4656.183.360 kit be reused after a transmission rebuild?
A: No. This is a loose parts kit containing wear items like seals and spacers. ZF recommends always installing a new kit during any major overhaul to ensure proper clamping forces and hydraulic sealing.
Q: How do I know if my WG171 needs this specific kit?
A: If you are experiencing low line pressure or harsh shifts, and your transmission has already been disassembled, inspect the internal loose parts for scoring or deformation. Replacing them with the 4656.183.360 kit is standard procedure when replacing the HOUSING REAR PART or the O-RING seals.
Q: Does this part include the cap screws for installation?
A: No. The 4656.183.360 kit contains only the loose internal components. You will need to order the CAP SCREW (0636100801) and CAP SCREW (0636100160) separately for complete assembly.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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