Overview
The ZF 4657.183.228 LOOSE PARTS for WG190 is a critical internal component kit designed for the WG 190 Series transmission. This genuine OEM part, identified by SKU 4657.183.228, functions as a collection of fasteners, seals, and positioning elements that secure the main housing assembly. It sits between the 4657101080: TRANSMISSION HOUSING and the 4657201167: HOUS.FRONT SECT, ensuring precise alignment and leak-free operation under high torque loads. Without this loose parts set, the transmission cannot maintain structural integrity during heavy-duty industrial use.
Symptoms of Failure
- Oil seepage at housing joints: When the 4657.183.228 kit wears out, you may notice fluid weeping between the 4657201171: HOUSING REAR PART and the main casing, leading to gradual transmission fluid loss.
- Gear engagement hesitation: Worn positioning pins or bolts from this kit can cause slight misalignment, resulting in delayed or rough shifting under load.
- Abnormal vibration during operation: Loose fasteners allow the 4657298103: HOUSING REAR SECTION to shift, creating harmonic vibrations that worsen at higher RPMs.
- Increased operating noise: A failing loose parts set produces a distinct rattling sound from the bell housing area, indicating compromised clamping force.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4657.183.228 |
| Material Composition | Hardened steel alloy with zinc plating |
| Weight (approx.) | 0.85 kg (1.87 lbs) |
| OEM Reference | ZF 4657.183.228 |
| Dimensions (L x W x H) | 120 mm x 80 mm x 40 mm |
| Compatible Fasteners | 0636100801: CAP SCREW, 0636100803: CAP SCREW |
| Associated Hardware | 0631306816: CYLINDRICAL PIN, 4656301148: FIXING PLATE |
Compatibility
This genuine ZF loose parts kit is specifically engineered for the WG 190 Series transmission. Based on its design and fastener configuration, it is also compatible with the WG 180, WG 200, and WG 210 series transmissions that share the same housing architecture. The kit works directly with 4657301034: SCREEN SHEET and 4657301035: SCREEN SHEET for filtration integration. Always verify your transmission serial number before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101080 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4657201167 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4657201171 | HOUSING REAR PART | Rear housing component for output shaft alignment |
| 4657298103 | HOUSING REAR SECTION | Secondary rear housing for bearing retention |
| 0631306816 | CYLINDRICAL PIN | Precision alignment pin for housing mating |
| 0636100801 | CAP SCREW | M10 fastener for housing joint clamping |
| 4656301148 | FIXING PLATE | Locking plate for fastener retention |
| 4657301034 | SCREEN SHEET | Fine mesh filter for oil circuit protection |
| 4657301035 | SCREEN SHEET | Coarse mesh pre-filter for debris removal |
| 0636100803 | CAP SCREW | M12 fastener for heavy-duty housing sections |
