Overview
The ZF 4657.183.323 LOOSE PARTS for WG210 is a critical internal component kit designed to secure and position key assemblies within the transmission housing. This OEM genuine part, identified by SKU 4657.183.323, serves as a collection of fasteners, locating pins, and retention elements that prevent axial movement of shafts and gear sets during high-torque operation. It integrates directly into the main casing structure, working in conjunction with the TRANSMISSION HOUSING to maintain precise gear alignment. Without this loose parts set, the internal architecture of the WG210 series would lack the necessary clamping force to withstand vibration and thermal expansion.
Symptoms of Failure
When the ZF 4657.183.323 LOOSE PARTS begin to degrade, operators often notice intermittent gear slippage under load, particularly during uphill climbs or heavy hauling. Another common indicator is metallic rattling noises from the bell housing area, which suggests loose retention elements allowing component drift. You may also experience erratic shift timing as the valve body loses its fixed reference points. Finally, oil seepage around the housing mating surfaces can occur if the included cap screws lose their sealing tension, leading to gradual fluid loss and potential overheating.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.183.323 |
| OEM Reference | ZF WG210 Series |
| Material Composition | Case-hardened steel / Zinc-plated alloy |
| Total Weight | 0.85 kg (1.87 lbs) |
| Fastener Torque Spec | 45 Nm (33 ft-lbs) |
| Operating Temperature Range | -40°C to +120°C |
| Thread Pitch (Cap Screws) | M8 x 1.25 |
Compatibility
This loose parts kit is specifically engineered for the ZF WG210 series, but its retention geometry also applies to the WG180 and WG200 models due to shared housing architecture. It is compatible with transmissions using the HOUS.FRONT SECT and HOUSING REAR PART. For complete assembly, verify that your transmission uses the HOUSING REAR SECTION variant, as this kit includes locating pins that interface directly with that casting. Always cross-reference your existing housing serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 0631306816 | CYLINDRICAL PIN | Precise alignment of housing sections |
| 0636100801 | CAP SCREW | Secures front housing to main casing |
| 4656301148 | FIXING PLATE | Locks bearing races in position |
| 4657301034 | SCREEN SHEET | Debris filtration in oil galleries |
| 4657301035 | SCREEN SHEET | Secondary filtration for valve body |
| 0636100803 | CAP SCREW | Rear housing retention bolt |
