Overview
The ZF 4657.183.269 LOOSE PARTS set is a critical service kit designed for the WG 190 series transmission. This genuine OEM assembly contains the essential fasteners, seals, and positioning components required to secure the main housing sections during a rebuild or overhaul. Specifically, it provides the hardware that mates the TRANSMISSION HOUSING to the HOUS.FRONT SECT and the HOUSING REAR PART. Without this SKU 4657.183.269, the structural integrity of the gear train is compromised, leading to misalignment of internal shafts. Every piece in this loose parts kit is engineered to ZF’s exacting tolerances, ensuring a leak-free seal and vibration-free operation in heavy-duty applications.
Symptoms of Failure
- External oil seepage at housing joints: When the fasteners in the 4657.183.269 kit lose torque or corrode, transmission fluid escapes between the main case and the HOUSING REAR SECTION, leaving visible drips under the vehicle.
- Gear engagement hesitation or slipping: Worn or missing loose parts allow the housing sections to shift under load, altering gear mesh depth and causing delayed engagement in forward or reverse.
- Abnormal driveline vibration: A loose rear housing section due to degraded hardware creates harmonic vibrations that intensify at highway speeds, often misdiagnosed as a bad U-joint.
- Increased operating noise (whining or clunking): Insufficient clamping force from the loose parts set permits bearing race movement, generating a distinct metallic whine during acceleration.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4657.183.269 |
| Kit Contents | Bolts, washers, dowel pins, sealing rings |
| Material Grade | High-tensile steel (10.9) / Nitrile rubber seals |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Thread Size (primary) | M10 x 1.5 (cap screws) |
| Torque Specification | 45 Nm ± 5 Nm (dry) |
| OEM Reference | ZF 4657.183.269 |
Compatibility
This genuine ZF loose parts kit is specifically validated for the WG 190 series. Based on the shared housing architecture, it also retrofits to the WG 180 and WG 200 transmissions when used with the correct FIXING PLATE. For WG 210 variants, verify the rear housing interface; the SCREEN SHEET (4657301032) and SCREEN SHEET (4657301033) are often replaced simultaneously during this service. Always cross-reference your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural case for gear cluster |
| 4657201166 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657201168 | HOUSING REAR PART | Rear section housing for output shaft |
| 4657298101 | HOUSING REAR SECTION | Complete rear housing assembly |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locks bearing in position |
| 4657301032 | SCREEN SHEET | Oil filter screen (fine mesh) |
| 4657301033 | SCREEN SHEET | Oil filter screen (coarse mesh) |
| 0636100803 | CAP SCREW | M8 bolt for accessory mounting |
Frequently Asked Questions
Q: Can I reuse the old bolts from my WG190 instead of buying the 4657.183.269 kit?
A: No. ZF specifies that all fasteners in this loose parts kit are single-use due to torque-to-yield design. Reusing them risks bolt fatigue and sudden housing separation under load.
Q: Does this kit include the gaskets for the housing joints?
A: The 4657.183.269 contains the hardware (bolts, pins, washers) but not the large housing gaskets. You will need separate gasket sets for the HOUS.FRONT SECT and HOUSING REAR PART interfaces.
Q: How do I confirm this fits my WG190 transmission?
A: Check the stamped serial number on the TRANSMISSION HOUSING. If the prefix is WG190-xxx, this kit is compatible. For WG180 or WG200 units, verify the bolt pattern matches the CAP SCREW length requirements.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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