Overview
The ZF 4657.183.314 LOOSE PARTS for WG190 is a critical service kit designed to restore the precise internal clearances and sealing integrity of your ZF WG190 transmission. This OEM genuine part, identified by SKU 4657.183.314, contains the specific loose components—including thrust washers, snap rings, and shims—that sit between the planetary gear sets and the main housing sections. By replacing these wear-prone elements during a rebuild, you eliminate axial play and ensure correct gear alignment, directly preventing premature failure of the TRANSMISSION HOUSING and the HOUS.FRONT SECT.
Symptoms of Failure
When the loose parts in this kit wear beyond tolerance, operators typically notice these specific failure modes:
- Intermittent gear slipping under load: Worn shims allow the clutch packs to lose clamping force, causing the transmission to slip when climbing grades or hauling heavy loads.
- Metallic rattle from the bell housing: Excessive axial clearance from degraded thrust washers produces a distinct rattling noise at idle, often misdiagnosed as a torque converter issue.
- Delayed engagement when shifting from Neutral to Drive: Loose internal components cause hydraulic pressure to bleed off, resulting in a 2-3 second delay before the gear engages.
- Contaminated transmission fluid with bronze or steel particles: As the loose parts wear against the HOUSING REAR PART, fine metallic debris circulates through the system, accelerating wear on other components.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 4657.183.314 |
| OEM Reference | ZF 4657.183.314 |
| Material Composition | Case-hardened steel with bronze alloy thrust surfaces |
| Weight (estimated) | 0.85 kg (1.87 lbs) |
| Package Contents | Thrust washers, snap rings, shims, and retaining clips |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF loose parts kit is specifically engineered for the WG 190 Series transmissions. Based on the part type and internal geometry, it is also compatible with the closely related ZF WG180 and WG200 models that share the same planetary carrier and housing architecture. For proper installation, ensure the HOUSING REAR SECTION is clean and free of burrs before fitting the new components.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101082 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201166 | HOUS.FRONT SECT | Front section housing the torque converter |
| 4657201170 | HOUSING REAR PART | Rear housing supporting output shaft |
| 4657298102 | HOUSING REAR SECTION | Intermediate rear housing adapter |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing assembly |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 4656301148 | FIXING PLATE | Retaining plate for clutch pack |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh filter for sump |
| 0636100803 | CAP SCREW | M12 fastener for rear housing |
Frequently Asked Questions
Q: Can I install the 4657.183.314 kit without removing the transmission from the vehicle?
A: No. This kit requires full disassembly of the WG190 transmission, as the loose parts are located between the planetary gear sets and the main housing sections. The transmission must be removed and split open to access these components.
Q: How often should the loose parts be replaced during a rebuild?
A: ZF recommends replacing all loose parts in this kit every time the transmission is overhauled, typically at 500,000 km or when any failure symptom appears. Reusing old thrust washers or shims will compromise the rebuild quality.
Q: Does this kit include the necessary fasteners for the housing?
A: No. The 4657.183.314 kit contains only the loose internal components (washers, rings, shims). For housing fasteners, you will need separate parts such as the CAP SCREW (0636100801) and CAP SCREW (0636100803) for proper reassembly.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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