Overview
The ZF 4657.183.272 LOOSE PARTS kit is a critical service package designed specifically for the WG 210 series transmission. This assembly contains the necessary fasteners, seals, and positioning elements required to secure the main structural components of the gearbox during rebuilds or major repairs. As an OEM genuine part, SKU 4657.183.272 ensures that the internal clearances and clamping forces meet factory specifications, preventing misalignment between the TRANSMISSION HOUSING and adjacent sections. Without this loose parts set, the integrity of the entire drivetrain assembly is compromised, leading to premature wear on rotating elements.
Symptoms of Failure
- Transmission oil seepage at housing joints: When the fasteners in the 4657.183.272 kit fatigue or corrode, the seal between the HOUS.FRONT SECT and the main body degrades, causing fluid migration.
- Abnormal gear engagement noise under load: Loose retaining hardware allows the HOUSING REAR PART to shift microscopically, altering gear mesh patterns and producing a distinct whine or clatter.
- Vibration during torque converter lockup: A missing or stretched cap screw from this kit creates play in the HOUSING REAR SECTION, transmitting resonance through the driveline.
- Intermittent loss of hydraulic pressure: Warped housing flanges due to uneven bolt tension cause internal cross-leaks, reducing clutch pack engagement force.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.272 |
| OEM Reference | ZF 4657.183.272 |
| Material Composition | Steel alloy (fasteners), Nitrile rubber (seals) |
| Weight (estimated) | 0.85 kg (1.87 lbs) |
| Fastener Torque Spec | 45 Nm (33 ft-lbs) dry |
| Operating Temperature Range | -40°C to +120°C |
| Associated Hardware | 0631306816: CYLINDRICAL PIN, 0636100801: CAP SCREW, 4656301148: FIXING PLATE |
Compatibility
This loose parts kit is engineered for the ZF WG 210 series, but its fasteners and alignment components are shared across several heavy-duty transmission models. It is directly compatible with the WG180, WG200, and WG250 series where the housing split line uses identical bolt patterns. The kit also supports the WG 211 variant when paired with the correct SCREEN SHEET (4657301034) for oil filtration. Always verify the housing casting numbers before installation, as the SCREEN SHEET (4657301035) may differ in thickness for later production runs.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201167 | HOUS.FRONT SECT | Front section housing input shaft |
| 4657201171 | HOUSING REAR PART | Rear casing for output flange |
| 4657298103 | HOUSING REAR SECTION | Extended rear housing for PTO mount |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing halves |
| 0636100801 | CAP SCREW | M10 bolt for housing flange |
| 4656301148 | FIXING PLATE | Retainer for bearing preload |
| 4657301034 | SCREEN SHEET | Fine mesh oil strainer |
| 4657301035 | SCREEN SHEET | Coarse mesh oil strainer |
| 0636100803 | CAP SCREW | M12 bolt for rear housing |
