Overview
The ZF 4657.183.079 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 210 Series transmission. This assembly contains the essential fasteners, seals, and positioning components required to secure internal hydraulic circuits and structural elements within the gearbox. As a loose parts kit, it replaces worn or damaged hardware that can compromise the integrity of the transmission housing and oil feed pathways. The SKU 4657.183.079 is engineered to match original ZF tolerances, ensuring a precise fit when paired with the TRANSMISSION HOUSING and the HOUS.FRONT SECT. This kit is indispensable during a full overhaul or when addressing leaks at the housing interface.
Symptoms of Failure
- External oil seepage at housing joints: Worn or missing loose parts cause the HOUSING REAR PART to lose clamping force, leading to visible fluid drips under the transmission.
- Intermittent gear engagement hesitation: Degraded fasteners in this kit allow micro-movement of internal screens, disrupting oil pressure to clutch packs.
- Metallic rattling from the bell housing: A loose CYLINDRICAL PIN or missing cap screw creates audible vibration during low-speed operation.
- Overheating due to restricted oil flow: When the fixing plate or screen sheet hardware fails, debris bypasses filtration, raising sump temperature.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.079 |
| Material Composition | Steel alloy with zinc-nickel plating |
| Total Kit Weight | 0.85 kg (1.87 lbs) |
| Fastener Torque Range | 45–55 Nm |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF WG210 Series Service Kit |
Compatibility
This loose parts kit is primarily validated for the ZF WG 210 Series transmissions. Based on shared housing architecture, it is also compatible with the WG180, WG200, and select WG211 variants that utilize the same OIL FEED.HOUSG. interface. Always cross-reference your transmission serial number with the included CAP SCREW and FIXING PLATE dimensions to confirm fitment. The kit is not backward-compatible with pre-2005 WG models without adapter modifications.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101042 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201028 | HOUS.FRONT SECT | Front section of the housing assembly |
| 4657201013 | HOUSING REAR PART | Rear housing section for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment pin for housing doweling |
| 0636100801 | CAP SCREW | M10 fastener for housing retention |
| 4656301148 | FIXING PLATE | Locks oil feed tube in position |
| 4657301034 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M8 fastener for screen sheet retention |
| 4656301048 | OIL FEED.HOUSG. | Pressurized oil distribution housing |
