Overview
The ZF 4657.183.057 LOOSE PARTS kit is a critical service component engineered specifically for the WG 210 series transmission. This OEM genuine assembly contains the precise fasteners, seals, and positioning elements required to secure the main housing sections during a rebuild or overhaul. Designated under SKU 4657.183.057, this loose parts set interfaces directly with the transmission’s structural core, ensuring that the 4657101033: TRANSMISSION HOUSING maintains correct alignment with the 4657201027: HOUS.FRONT SECT and the 4657201012: HOUSING REAR PART. Without this genuine kit, internal clearances cannot be guaranteed, leading to premature wear.
Symptoms of Failure
When the ZF 4657.183.057 LOOSE PARTS degrade or are omitted during service, operators will notice distinct operational faults. Watch for these specific failure indicators:
- Transmission oil weeping from housing seams – A clear sign that the fasteners in the kit have lost torque, allowing fluid to escape between the 4657201012: HOUSING REAR PART and the main body.
- Intermittent gear slipping under load – Loose structural components cause the shaft centers to shift, disrupting clutch pack engagement.
- Abnormal metallic rattling from the bell housing area – This indicates that the 0631306792: CYLINDRICAL PIN has worked loose, allowing lateral movement of the front section.
- Persistent vibration during torque converter lockup – A misaligned housing due to worn loose parts creates harmonic imbalance at highway speeds.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.057 |
| Kit Contents | Fasteners, dowels, seals, and positioning clips |
| Material Composition | Case-hardened steel (fasteners) / Nitrile (seals) |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Torque Specification | 85 Nm (62.7 lb-ft) per fastener |
| OEM Reference | ZF 4657.183.057 |
Compatibility
This LOOSE PARTS kit is dimensionally validated for the WG 210 series, but its application extends to several ZF off-highway and industrial transmissions. Compatible models include the WG180, WG200, WG210, and WG250 series. The kit is also suitable for certain ZF Ecomat 4HP variants that share the same housing bolt pattern. Always verify that the 4657101033: TRANSMISSION HOUSING and the 4657201027: HOUS.FRONT SECT are free of cracks before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657201027 | HOUS.FRONT SECT | Front bell housing adapter section |
| 4657201012 | HOUSING REAR PART | Rear output housing cover |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing sections |
| 0636100801 | CAP SCREW | M10 x 30 hex head fastener |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil pickup |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter screen |
| 0636100803 | CAP SCREW | M12 x 35 flange bolt |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil distribution manifold |
