Overview
The ZF 4651.183.022 is a critical OEM genuine component engineered specifically for the WG 110 series transmission. This part functions as a precision-machined adapter or cover element within the valve body or hydraulic control assembly, ensuring proper fluid routing and pressure regulation. The SKU 4651.183.022 is designed to maintain the exacting tolerances required for reliable gear engagement and smooth shifting in heavy-duty industrial applications. When installed alongside the 4651101013: TRANSMISSION HOUSING, it forms a sealed, high-pressure zone that prevents cross-contamination between hydraulic circuits.
Symptoms of Failure
- Erratic shifting or delayed engagement — A worn 4651.183.022 can cause inconsistent hydraulic pressure, leading to harsh or unpredictable gear changes, especially under load.
- External oil seepage near the valve body — Cracks or deformation in this part often result in visible fluid leaks around the transmission housing, leaving puddles under the vehicle.
- Transmission overheating — Internal fluid bypass due to a failed seal surface forces the system to work harder, generating excessive heat and reducing overall efficiency.
- Intermittent gear slipping — When the part loses its structural integrity, it cannot maintain proper clutch pack pressure, causing momentary loss of torque during acceleration.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4651.183.022 |
| Material | Die-cast aluminum alloy with corrosion-resistant coating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 185 mm x 95 mm x 40 mm |
| Surface Finish | Anodized, precision-ground sealing faces |
| Operating Temperature Range | -40°C to +120°C |
| OEM Reference | ZF WG 110 Series |
Compatibility
This genuine ZF part is primarily designed for the WG 110 transmission series. It is also compatible with select models in the WG 180 and WG 200 families that share the same hydraulic control architecture. The 4651.183.022 interfaces directly with the 4651301032: HOUSING and the 4651301033: HOUSING to create a sealed manifold. For leak-free installation, always replace the 0634303928: O-RING simultaneously to prevent fluid bypass. Verify your transmission model number before ordering to ensure correct fitment.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101013 | TRANSMISSION HOUSING | Main structural casing for gear train and hydraulics |
| 4651301032 | HOUSING | Secondary cover for valve body assembly |
| 0634303928 | O-RING | Static seal between housing and adapter plate |
| 4651301033 | HOUSING | Lower housing for clutch piston assembly |
| 4651203002 | SCREEN SHEET | Fine mesh filter for hydraulic fluid intake |
| 4651303005 | SCREEN SHEET | Secondary filter screen for return line |
| 0636101032 | CAP SCREW | High-strength fastener for housing attachment |
| 0630361028 | SEALING CAP | Threaded plug for test port access |
| 4475280060 | SCREW PLUG | Magnetic drain plug for debris collection |
| 0634303312 | O-RING | Seal for screw plug and cap screw interfaces |
Frequently Asked Questions
Q: Can the 4651.183.022 be reused after removal?
A: ZF recommends replacing this part with a new OEM unit whenever the transmission is disassembled for overhaul. The precision sealing surfaces can become distorted after initial torque application, increasing the risk of leaks.
Q: How do I confirm this part fits my WG 110 transmission?
A: Check the stamped identification plate on your transmission housing. The WG 110 series will list “WG110” followed by a variant code. If you have a WG 180 or WG 200, cross-reference the hydraulic control diagram to verify compatibility.
Q: What torque specification should I use for installation?
A: Always consult the ZF service manual for your specific model. Typical torque values for the mounting bolts range from 25 Nm to 35 Nm, applied in a crisscross pattern to avoid warping the part.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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