Overview
The ZF 4657.183.382 LOOSE PARTS set is a critical OEM genuine service kit designed specifically for the WG 190 Series transmission. This assembly contains the essential fasteners, seals, and positioning components required to secure and align the main transmission housing sections during a rebuild or major repair. Without this specific loose parts kit, the structural integrity of the gearbox is compromised, leading to misalignment of internal shafts and bearings. The SKU 4657.183.382 is engineered to match factory tolerances, ensuring that when you install it alongside the TRANSMISSION HOUSING, the entire assembly maintains its original rigidity and oil-tight seal.
Symptoms of Failure
- External oil seepage at housing joints: When the loose parts (bolts and pins) fatigue or corrode, the clamping force between the HOUS.FRONT SECT and the main body weakens, causing transmission fluid to weep under pressure.
- Intermittent gear slipping under load: Worn locating pins or stretched cap screws allow micro-movement between the HOUSING REAR PART and the central case, shifting gear alignment and causing power loss during torque transfer.
- Abnormal vibration or driveline noise: A loose rear section creates a resonant frequency in the drivetrain. If the HOUSING REAR SECTION is not properly secured by this kit, you will hear a distinct rattle or hum at highway speeds.
- Difficult gear engagement: Misalignment from degraded fasteners causes binding in the shift forks, making it hard to engage or disengage gears smoothly.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4657.183.382 |
| Material Composition | High-tensile steel (grade 10.9) with zinc-nickel plating |
| Kit Contents | Cap screws, cylindrical pins, fixing plate, screen sheets |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| Thread Size (primary bolts) | M10 x 1.5 |
| Torque Specification | 45 Nm + 90° angle (wet) |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF 4657.183.382 |
Compatibility
This loose parts kit is primarily designed for the ZF WG 190 Series, but it also fits the WG 180, WG 200, and WG 210 transmission variants due to shared housing bolt patterns. It is compatible with both the standard and heavy-duty versions of these models. Always verify that your transmission uses the same CYLINDRICAL PIN diameter and CAP SCREW length as specified in the original ZF service manual.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101078 | TRANSMISSION HOUSING | Main structural case for gear assembly |
| 4657201166 | HOUS.FRONT SECT | Front section of the transmission housing |
| 4657201168 | HOUSING REAR PART | Rear housing component for output shaft |
| 4657298101 | HOUSING REAR SECTION | Complete rear section with bearing bores |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowels |
| 0636100801 | CAP SCREW | M10 bolt for housing fastening |
| 4656301148 | FIXING PLATE | Locking plate for bolt retention |
| 4657301032 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4657301033 | SCREEN SHEET | Coarse mesh pre-filter screen |
| 0636100803 | CAP SCREW | M12 bolt for rear section mounting |
Frequently Asked Questions
Q: Can I reuse the old bolts from my WG190 instead of buying this kit?
A: No. ZF specifies that all cap screws and pins in the 4657.183.382 kit are single-use torque-to-yield fasteners. Reusing them risks bolt stretch failure and internal oil leaks.
Q: Does this kit include the screen sheets for the oil filter?
A: Yes. The kit contains both the fine mesh (4657301032) and coarse mesh (4657301033) screen sheets, plus the fixing plate (4656301148) to secure them.
Q: Will this fit a ZF WG180 transmission from 1998?
A: It is compatible with WG180, WG190, WG200, and WG210 models. However, verify your housing bolt pattern matches the M10 x 1.5 thread pitch of the included cap screws.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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