Overview
The ZF 4657.199.071 LOOSE PARTS kit is a critical service component designed for the WG 210 series transmission. This genuine OEM assembly contains the necessary fasteners, seals, and positioning elements required to secure the main housing sections during rebuild or repair. Specifically, the SKU 4657.199.071 provides the loose hardware that interfaces between the TRANSMISSION HOUSING and the HOUS.FRONT SECT, ensuring proper alignment and clamping force. Without this kit, the structural integrity of the WG210 gearbox is compromised, leading to misalignment of internal shafts and bearings.
Symptoms of Failure
When the 4657.199.071 LOOSE PARTS begin to degrade or are omitted during service, operators will notice specific failure modes. Oil seepage at the housing joint is the most common indicator, often mistaken for a gasket failure. Abnormal gear engagement noise during low-speed maneuvering signals that the HOUSING REAR PART is not properly torqued. Intermittent loss of hydraulic pressure occurs when loose hardware allows the HOUSING REAR SECTION to shift under load. Finally, vibration at the bell housing indicates that the fasteners in this kit have fatigued, allowing axial play between the transmission and engine.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.199.071 |
| Kit Contents | Bolts, dowels, washers, positioning pins |
| Material | High-tensile steel (grade 10.9), zinc-plated |
| Weight | 0.85 kg (1.87 lbs) |
| Thread Pitch | M10 x 1.5 (primary fasteners) |
| Torque Specification | 65 Nm ± 5 Nm (dry) |
| OEM Reference | ZF 4657.199.071 |
| Application | WG 210 Series |
Compatibility
This LOOSE PARTS kit is engineered for the ZF WG 210 series, but it also serves as a direct replacement for the WG 180 and WG 200 transmissions when used with the correct housing components. The kit is essential when mating the TRANSMISSION HOUSING to the HOUS.FRONT SECT on all WG variants. It is not compatible with the older WG 120 series due to different bolt patterns. For WG 211 and WG 212 models, verify the housing casting number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201170 | HOUSING REAR PART | Rear housing section for output shaft |
| 4657298102 | HOUSING REAR SECTION | Secondary rear housing cover |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locks bearing in position |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M12 bolt for heavy-duty clamping |
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