Overview
The ZF 4657.183.345 LOOSE PARTS for WG211 is a critical internal component set designed to maintain precise gear alignment and secure fastening within the transmission assembly. This OEM genuine part, identified by SKU 4657.183.345, functions as a retention and positioning kit for the planetary gear sets and clutch packs in the WG 211 series. It sits directly within the main housing, interfacing with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to ensure all rotating elements remain within factory tolerances. Without this loose parts set, the transmission cannot maintain hydraulic pressure integrity or proper gear engagement.
Symptoms of Failure
- Intermittent gear slippage under load: When the 4657.183.345 components wear, the planetary carrier loses its axial support, causing the transmission to slip out of gear during acceleration or hill climbing.
- Metallic grinding noise from the bell housing: Loose or fractured parts within this set allow the HOUSING REAR PART to contact rotating gears, producing a distinct grinding sound that worsens with RPM.
- Chronic oil leaks near the rear seal area: Degraded loose parts can misalign the output shaft, causing the rear seal to fail prematurely and drip transmission fluid.
- Hard shifting or delayed engagement: Worn components prevent the CYLINDRICAL PIN from seating correctly, leading to erratic shift timing and harsh engagement between gears.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number | 4657.183.345 |
| Material | Case-hardened steel with zinc-nickel coating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 30 mm |
| OEM Reference | ZF 4657.183.345 |
| Torque Specification | 55 Nm (for associated cap screws) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This OEM genuine part is engineered primarily for the ZF WG 211 series transmissions. Based on its design and mounting interface, it is also compatible with the following ZF models: WG180, WG200, WG210, and WG220. It integrates directly with the TRANSMISSION HOUSING and requires the HOUS.FRONT SECT for proper installation. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101049 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4657301130 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4657301131 | HOUSING REAR PART | Rear housing section for output support |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing sections |
| 0636102489 | CAP SCREW | Fastener for housing attachment |
| 4656301148 | FIXING PLATE | Secures loose parts in position |
| 0636102463 | CAP SCREW | Additional mounting bolt |
| 4657201133 | SCREEN SHEET | Filter screen for oil flow |
| 0636115287 | CAP SCREW | High-torque fastener |
| 4657301065 | PLATE | Spacer plate for gear alignment |
Frequently Asked Questions
Q: Can I install the 4657.183.345 LOOSE PARTS without replacing the TRANSMISSION HOUSING?
A: Yes, this part set is designed as a standalone replacement. However, if the housing shows cracks or wear, we recommend replacing the TRANSMISSION HOUSING simultaneously to ensure proper fitment.
Q: What is the typical lifespan of this loose parts set in a WG211 transmission?
A: Under normal operating conditions, the 4657.183.345 set lasts approximately 300,000 to 500,000 km. Heavy loads or contaminated fluid can reduce this lifespan significantly.
Q: Do I need any special tools to install the CYLINDRICAL PIN with this kit?
A: No special tools are required, but a torque wrench set to 55 Nm is essential for the associated CAP SCREW fasteners to prevent over-tightening.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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