Overview
The ZF 4657.199.062 LOOSE PARTS kit is a critical service component designed specifically for the WG 210 series transmission. This assembly contains the essential loose hardware and fasteners required to secure and align the main transmission housing sections during rebuild or repair. Positioned at the central interface between the front and rear housing segments, this kit ensures proper clamping force and structural integrity of the gearbox casing. The SKU 4657.199.062 is an OEM genuine part, guaranteeing exact fitment and material compatibility with ZF’s original manufacturing tolerances. Without these loose parts, the transmission cannot maintain oil sealing or bearing preload, leading to premature wear of internal components such as the 4657101080 TRANSMISSION HOUSING and the 4657201167 HOUS.FRONT SECT.
Symptoms of Failure
- Oil seepage at housing mating surfaces: When the loose parts kit components fatigue or corrode, the clamping force between the 4657201171 HOUSING REAR PART and the front section diminishes, causing transmission fluid to weep from the joint line.
- Abnormal gear engagement noise: Worn or missing fasteners from the 4657.199.062 kit allow micro-movement between housing sections, resulting in a distinct metallic clatter during gear shifts under load.
- Progressive oil pressure loss: A compromised housing seal due to degraded loose parts leads to internal pressure drops, causing sluggish clutch pack engagement and delayed shifting in the WG210.
- Vibration at highway speeds: Insufficient structural rigidity from failed fasteners permits the 4657298103 HOUSING REAR SECTION to resonate, transmitting vibration through the driveline.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.199.062 |
| Kit Contents | Bolts, washers, alignment pins, sealing elements |
| Material | High-tensile steel (grade 10.9) with zinc-nickel plating |
| Weight (kit) | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 4657.199.062 (Genuine) |
| Thread Size (primary) | M10 x 1.5 |
| Torque Specification | 45 Nm + 90° angle |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This loose parts kit is engineered for the ZF WG 210 series transmissions. Based on the housing geometry and fastener pattern, it is also compatible with the following ZF models: WG180, WG200, WG210, and WG250. The kit directly interfaces with the 4657101080 TRANSMISSION HOUSING and the 4657201167 HOUS.FRONT SECT, ensuring correct alignment for the 4657201171 HOUSING REAR PART and the 4657298103 HOUSING REAR SECTION. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear and shaft assembly |
| 4657201167 | HOUS.FRONT SECT | Forward housing section containing input shaft bearings |
| 4657201171 | HOUSING REAR PART | Rear housing segment supporting output shaft |
| 4657298103 | HOUSING REAR SECTION | Extended rear housing for auxiliary drive units |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing centering |
| 0636100801 | CAP SCREW | M10 fastener for housing-to-housing joint |
| 4656301148 | FIXING PLATE | Locking plate to prevent fastener rotation |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for pump intake |
| 0636100803 | CAP SCREW | M8 fastener for accessory bracket mounting |
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