Overview
The ZF 4656.183.387 LOOSE PARTS kit is a critical service component designed specifically for the WG 171 series transmission. This genuine OEM assembly contains the necessary loose hardware and small components required to secure and seal internal assemblies within the transmission housing. Positioned within the main gear train area, this kit ensures that the TRANSMISSION HOUSING and the HOUS.FRONT SECT remain properly aligned and fastened under high torque loads. The SKU 4656.183.387 is a direct OEM replacement, eliminating guesswork during rebuilds or major repairs on ZF powershift transmissions.
Symptoms of Failure
When the loose parts in this kit begin to degrade or become dislodged, operators may notice specific operational issues. Oil leaks around the front housing joint are a primary indicator, often caused by worn fasteners or damaged sealing surfaces. Gear slipping under load can occur if the SCREEN SHEET becomes misaligned, restricting hydraulic flow. Unusual rattling or vibration from the bell housing suggests loose retaining hardware, while erratic shift engagement may point to a compromised TUBE that has shifted out of position. Addressing these symptoms early with the 4656.183.387 kit prevents cascading damage to internal planetary gears.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4656.183.387 |
| OEM Reference | ZF WG171 Series |
| Material Composition | Steel, hardened alloy, rubber seals |
| Estimated Weight | 0.45 kg (1.0 lb) |
| Kit Contents | Fasteners, washers, retaining clips, seals |
| Compatible Housing | TRANSMISSION HOUSING |
| Front Section | HOUS.FRONT SECT |
| Screen Component | SCREEN SHEET |
| Hydraulic Tube | TUBE |
Compatibility
This genuine ZF 4656.183.387 LOOSE PARTS kit is engineered primarily for the WG 171 transmission series. However, due to shared architecture, it is also compatible with the WG 180 and WG 200 series when used in conjunction with the correct O-RING and CAP SCREW sets. It fits all standard ZF powershift transmissions used in off-highway trucks, loaders, and agricultural equipment. Always verify the rear section compatibility with the HOUSING REAR PART before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101072 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656301168 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4656201015 | SCREEN SHEET | Hydraulic fluid filtration mesh |
| 4656301037 | TUBE | Oil passage conduit between sections |
| 0634313514 | O-RING | Seals housing joints against leaks |
| 0636100803 | CAP SCREW | Fastens housing sections together |
| 4656301169 | HOUSING REAR PART | Rear section housing for output shaft |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise assembly |
| 0636100801 | CAP SCREW | Secures screen sheet in place |
| 0636100160 | CAP SCREW | Mounts tube assembly to housing |
Frequently Asked Questions
Q: Can the 4656.183.387 kit be used on a WG180 transmission?
A: Yes, this kit is cross-compatible with WG180 and WG200 series transmissions, provided you also replace the O-RING and CAP SCREW for proper sealing.
Q: What tools are required to install these loose parts?
A: Standard socket and torque wrench sets are sufficient. You will need to align the CYLINDRICAL PIN for precise housing alignment before tightening the CAP SCREW fasteners.
Q: How do I know if the screen sheet needs replacement?
A: If you observe restricted oil flow or metallic debris in the fluid, replace the SCREEN SHEET along with this loose parts kit to prevent internal damage.
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Phone: +86 158 2286 3467 |
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