Overview
The ZF 4657.183.232 LOOSE PARTS kit is a critical service assembly designed specifically for the WG 210 Series transmission. This genuine OEM part set contains the internal fasteners, locating pins, and sealing components required to secure the main housing sections during a rebuild or overhaul. Positioned at the structural core of the gearbox, the 4657.183.232 ensures that the TRANSMISSION HOUSING remains rigidly aligned with the HOUS.FRONT SECT and the HOUSING REAR PART. Without this precise loose parts set, the entire WG210 assembly risks misalignment under load. The SKU 4657.183.232 is your direct OEM reference for restoring factory tolerances.
Symptoms of Failure
- Oil seepage at housing mating flanges: When the loose parts in this kit fatigue, the clamping force between the HOUSING REAR SECTION and the main body diminishes, causing ATF to weep from the joint lines.
- Intermittent gear engagement hesitation: Worn locating pins or stretched cap screws allow micro-movement between housing halves, leading to delayed shift response under torque.
- Abnormal vibration during converter lockup: A loss of structural integrity from degraded loose parts permits harmonic resonance, felt as a low-frequency shudder through the driveline.
- Progressive oil loss from bell housing weep holes: Failed seals within the 4657.183.232 kit allow fluid migration, often misdiagnosed as a front pump seal failure.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.232 |
| Material Composition | Case-hardened steel (fasteners), tempered alloy (pins) |
| Kit Weight (estimated) | 0.85 kg (1.87 lbs) |
| Fastener Thread Pitch | M10 x 1.5 (primary cap screws) |
| Operating Torque Range | 45–55 Nm (33–40 ft-lbs) |
| OEM Reference Designation | WG210 Loose Parts Service Set |
| Corrosion Protection | Zinc-nickel plating (DIN EN ISO 4042) |
Compatibility
This genuine ZF 4657.183.232 loose parts kit is engineered for the WG 210 Series transmission family. Based on the part type and structural role, it is also compatible with the closely related WG180 and WG200 models that share the same housing bolt pattern and pin alignment geometry. The kit directly interfaces with the TRANSMISSION HOUSING and the HOUS.FRONT SECT, making it essential for any full rebuild of these ZF off-highway transmissions. Always verify your housing casting numbers before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for pump and converter |
| 4657201170 | HOUSING REAR PART | Rear structural housing section |
| 4657298102 | HOUSING REAR SECTION | Extended rear housing for output shaft |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing registration |
| 0636100801 | CAP SCREW | M10 fastener for housing joint clamping |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M12 fastener for heavy-duty housing sections |
