Overview
The ZF 4657.183.243 LOOSE PARTS kit is a critical service component designed specifically for the WG210 series transmission. This genuine OEM assembly contains the necessary loose hardware and fasteners required to secure and align internal transmission sections during a rebuild or overhaul. Positioned at the junction between the main housing and the front/rear sections, this SKU (4657.183.243) ensures that the TRANSMISSION HOUSING maintains proper structural integrity under high torque loads. Without this precise kit, the gear train cannot maintain its factory-specified clearances, leading to premature wear across the entire driveline.
Symptoms of Failure
- Transmission fluid seepage at housing seams: When the 4657.183.243 loose parts degrade or are improperly torqued, oil will weep from the mating surfaces between the HOUS.FRONT SECT and the main case, creating visible drips under the vehicle.
- Intermittent gear engagement hesitation: Worn fasteners within this kit allow micro-movement of the HOUSING REAR PART, causing delayed or clunky shifts under load.
- Abnormal vibration during acceleration: Loose retaining components permit the HOUSING REAR SECTION to shift slightly, transmitting harmonics through the chassis.
- Metallic debris in the oil pan: As the loose parts fail, they generate fine metal particles from fretting between housing faces.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.243 |
| Material Composition | Case-hardened steel with zinc-nickel plating |
| Weight (kit) | 0.85 kg (1.87 lbs) |
| Fastener Torque Spec | 85 Nm ± 5 Nm (dry) |
| OEM Reference | ZF Friedrichshafen AG |
| Kit Contents | Bolts, washers, alignment pins, retaining clips |
Compatibility
This genuine ZF 4657.183.243 LOOSE PARTS kit is engineered for the WG210 series, but it also shares mounting patterns with the WG180, WG200, and WG250 transmission families. It is specifically required when servicing the TRANSMISSION HOUSING assembly on any WG-series unit built after 2015. Always verify the housing face count before ordering; this kit accommodates both 6-bolt and 8-bolt configurations found on the HOUS.FRONT SECT and HOUSING REAR PART interfaces.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural case for gear train |
| 4657201167 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201171 | HOUSING REAR PART | Rear section housing for output flange |
| 4657298103 | HOUSING REAR SECTION | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowels |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retention plate for bearing preload |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh filter for sump |
| 0636100803 | CAP SCREW | M12 fastener for rear housing |
Authorized ZF Distributor
We are a certified supplier of genuine ZF components.
