Overview
The ZF 4657.183.222 LOOSE PARTS kit is a critical service package designed specifically for the WG210 series transmission. This assembly contains the essential fasteners, seals, and positioning components required to secure the main housing sections during a rebuild or overhaul. The SKU 4657.183.222 sits at the interface between the TRANSMISSION HOUSING and the internal clutch packs, ensuring that all loose hardware is replaced with OEM-grade parts to maintain factory tolerances. Without this kit, even a perfectly rebuilt gear train can suffer from misalignment or fluid migration.
Symptoms of Failure
- Transmission fluid seepage at housing seams: When the 4657.183.222 loose parts (gaskets and bolts) degrade, you may notice oil weeping between the HOUS.FRONT SECT and the main casing, especially after thermal cycling.
- Intermittent gear slippage under load: Worn locating pins or loose cap screws can allow the HOUSING REAR PART to shift minutely, causing clutch pack clearance errors and delayed engagement.
- Abnormal driveline vibration: A loose HOUSING REAR SECTION due to missing or fatigued hardware creates harmonic resonance at highway speeds.
- Hard shifting or neutral creep: If the fixing plates or screen sheets are not properly retained, hydraulic pressure fluctuations occur, leading to erratic shift quality.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.222 |
| Material Composition | Steel alloy (bolts), Nitrile rubber (seals), Zinc-plated hardware |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 4657.183.222 |
| Thread Pitch (primary bolts) | M10 x 1.5 |
| Torque Specification | 45 Nm ± 5 Nm (dry) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This loose parts kit is engineered for the ZF WG210 series, but it also shares hardware dimensions with the WG180, WG200, and WG250 models. The kit includes the CYLINDRICAL PIN (0631306816) for precise alignment of the housing sections, along with CAP SCREW (0636100801) and CAP SCREW (0636100803) variants for different flange depths. It also contains the FIXING PLATE (4656301148) and both SCREEN SHEET (4657301032) and SCREEN SHEET (4657301033) for oil filtration. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201168 | HOUSING REAR PART | Rear housing section for output flange |
| 4657298101 | HOUSING REAR SECTION | Extended rear housing for PTO mount |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for front housing fastening |
| 4656301148 | FIXING PLATE | Retains oil pump and filter assembly |
| 4657301032 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M12 bolt for rear housing fastening |
Frequently Asked Questions
Q: Can I reuse the old bolts from my WG210 instead of buying the 4657.183.222 kit?
A: ZF recommends against reusing torque-to-yield fasteners. The 4657.183.222 LOOSE PARTS kit includes new cap screws and cylindrical pins that have been pre-treated with thread locker to prevent loosening under vibration.
Q: Does this kit include the screen sheets for both the high-pressure and return circuits?
A: Yes. The kit contains both the 4657301032 (fine mesh) and 4657301033 (coarse mesh) screen sheets, ensuring complete filtration coverage for the WG210 hydraulic system.
Q: Will the 4657.183.222 work with a WG180 transmission?
A: The hardware dimensions are shared across the WG180, WG200, and WG210 platforms. However, you must verify that the housing bolt pattern matches your specific rear section. The HOUSING REAR SECTION (4657298101) uses the same M12 cap screws as the WG210.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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