Overview
Within the intricate architecture of the ZF WG 210 series transmission, the ZF 4657.183.109 LOOSE PARTS kit serves as a critical assembly component. This genuine OEM part, identified by SKU 4657.183.109, functions as a precision-engineered set of internal fasteners, spacers, and locating elements that secure the main housing sections together. It sits directly between the HOUS.FRONT SECT and the HOUSING REAR PART, ensuring proper alignment and clamping force to prevent fluid migration and structural flex under heavy torque loads. Without this specific loose parts set, the transmission cannot maintain its internal pressure integrity.
Symptoms of Failure
When the 4657.183.109 loose parts begin to degrade or are improperly installed during a rebuild, operators will notice distinct operational issues. The most common failure symptom is a slow oil leak at the transmission housing split line, often mistaken for a gasket failure. Another critical sign is intermittent gear slipping under load, caused by micro-movement between the TRANSMISSION HOUSING and the front section. You may also detect a persistent metallic rattling noise during deceleration, indicating that the CYLINDRICAL PIN within the kit has sheared or loosened. Finally, watch for erratic shift timing as the valve body alignment shifts due to compromised structural rigidity.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4657.183.109 |
| Material Composition | Hardened Steel (Grade 10.9) & Nitrile Rubber |
| Weight (Estimated) | 0.45 kg (1.0 lbs) |
| OEM Reference | ZF 4657.183.109 |
| Thread Size (Primary Bolt) | M10 x 1.5 |
| Operating Torque Range | 45-55 Nm |
| Temperature Tolerance | -40°C to +120°C |
Compatibility
This genuine 4657.183.109 loose parts kit is engineered specifically for the ZF WG 210 Series transmission family. Based on its design and fastener pattern, it is also compatible with the WG 180 and WG 200 models that share the same housing architecture. It is not suitable for the older WG 120 series or the newer Ecolife generation. Always verify that your transmission serial number falls within the WG 180-210 range before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101033 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201027 | HOUS.FRONT SECT | Front section housing for converter |
| 4657201012 | HOUSING REAR PART | Rear section housing for output shaft |
| 0631306792 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 fastener for housing bolts |
| 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 | M8 fastener for accessory mounts |
| 4681301040 | OIL FEED.HOUSG. | Lubrication supply tube assembly |
Frequently Asked Questions
Q: Can I reuse the old bolts and pins from my existing transmission when installing this kit?
A: No. The 4657.183.109 kit includes new, pre-stretched fasteners and precision-ground pins. Reusing old hardware risks fastener fatigue and misalignment, leading to immediate oil leaks or internal damage.
Q: Does this part include the gasket for the housing split line?
A: This specific SKU covers the loose hardware (bolts, pins, washers) only. For the housing gasket, you must order the appropriate seal separately. We recommend pairing this kit with a new TRANSMISSION HOUSING gasket if available.
Q: How do I verify this fits my WG 210 transmission?
A: Check the transmission data plate for the model code. If it reads “WG 210” followed by a suffix like “T” or “S”, this kit is compatible. For WG 180 or WG 200 units, confirm the bolt pattern matches the HOUS.FRONT SECT dimensions.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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