Overview
The ZF 4651.183.010 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 hydraulic control circuit, ensuring correct oil flow and pressure regulation during gear shifts. The SKU 4651.183.010 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in heavy-duty industrial drivelines. It sits between the main valve body and the TRANSMISSION HOUSING, where it seals critical fluid passages and supports the shift selector mechanism.
Symptoms of Failure
- Delayed or harsh gear engagement – When the 4651.183.010 wears, internal sealing surfaces degrade, causing low hydraulic pressure and sluggish shifts.
- External oil seepage – Cracks or warpage in this part lead to fluid leaks around the transmission housing joint, often mistaken for a failing O-RING.
- Intermittent gear slipping under load – A compromised part cannot maintain steady clutch pressure, resulting in momentary loss of torque transfer during uphill or loaded operation.
- Contaminated transmission fluid – Internal fracture of the component can introduce debris into the oil circuit, accelerating wear on the HOUSING and valve body.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number / SKU | 4651.183.010 |
| OEM Reference | ZF 4651.183.010 |
| Material | High-strength aluminum alloy (die-cast) |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 145 mm |
| Width | 90 mm |
| Height | 35 mm |
| Sealing Surface Finish | Ra 0.8 µm |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF part is designed primarily for the WG 110 series transmission, commonly found in municipal trucks, refuse vehicles, and medium-duty construction equipment. It is also compatible with the WG 180 and WG 200 series when used in conjunction with the correct HOUSING adapter kit. Always verify your transmission model tag before ordering. The 4651.183.010 replaces superseded part numbers 4651.183.009 and 4651.183.008.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101013 | TRANSMISSION HOUSING | Main structural casing for gear sets and shafts |
| 4651301032 | HOUSING | Secondary cover for valve body and oil pump |
| 0634303928 | O-RING | Static seal between housing and adapter plate |
| 4651301033 | HOUSING | Alternate cover variant for WG180/200 series |
| 4651203002 | SCREEN SHEET | Fine mesh filter for hydraulic fluid intake |
| 4651303005 | SCREEN SHEET | Secondary filter for return oil circuit |
| 0636101032 | CAP SCREW | M10 x 30mm fastener for housing assembly |
| 0630361028 | SEALING CAP | Plugs unused pressure test ports |
| 4475280060 | SCREW PLUG | Drain plug with magnetic insert |
| 0634303312 | O-RING | Seal for screw plug and cap screw interfaces |
Frequently Asked Questions
Q: Can the 4651.183.010 be installed without replacing the O-rings?
A: ZF strongly recommends replacing all elastomeric seals, especially the O-RING (0634303928) and the O-RING (0634303312), whenever this part is serviced. Old seals may not re-seal properly against the new component.
Q: How do I confirm this part fits my WG110 transmission?
A: Check the stamped serial number on your transmission housing. The 4651.183.010 is compatible with all WG110 variants produced after 2005. For earlier models, you may need the HOUSING (4651301032) adapter.
Q: What torque specification should I use for the cap screws?
A: Use 25 Nm (18.4 lb-ft) for the CAP SCREW (0636101032) fasteners. Over-torquing can distort the part and cause internal leakage.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
