Overview
The ZF 4651.183.005 is a precision-engineered OEM genuine component specifically designed for the WG 110 Series transmission. This part serves as a critical sealing and alignment element within the hydraulic control circuit, ensuring consistent oil pressure regulation and preventing cross-contamination between internal galleries. Positioned directly adjacent to the main valve body assembly, the SKU 4651.183.005 works in concert with the TRANSMISSION HOUSING to maintain structural integrity under high thermal loads. When installed correctly, this genuine ZF part eliminates internal bypass leakage that can compromise shift quality in heavy-duty industrial applications.
Symptoms of Failure
- Erratic shift timing and gear hunting: A worn 4651.183.005 allows pressurized fluid to escape, causing delayed engagement between forward and reverse gears.
- External oil seepage near the bell housing: Deterioration of the sealing surface leads to visible drips, often mistaken for a failing O-RING.
- Reduced torque converter lockup efficiency: Internal leakage through this component reduces hydraulic clamping force, resulting in RPM flare during highway operation.
- Contaminated transmission fluid with metallic debris: Advanced wear allows the HOUSING interface to generate fine particles that circulate through the system.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4651.183.005 |
| Material Composition | Hardened steel with nitrile sealing lip |
| Outer Diameter | 68.5 mm |
| Inner Diameter | 42.0 mm |
| Height / Thickness | 14.2 mm |
| Weight | 0.18 kg |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 4651.183.005 |
Compatibility
This genuine ZF part is engineered for the WG 110 Series transmission family. It is also compatible with the WG 180 and WG 200 models when used in conjunction with the HOUSING adapter kit. The 4651.183.005 fits all WG 110 variants produced after 2008, including the WG 110-5 and WG 110-6 torque converter models. For WG 180 applications, verify that the TRANSMISSION HOUSING has the correct pilot bore depth before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4651101013 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4651301032 | HOUSING | Intermediate support for clutch pack |
| 0634303928 | O-RING | Static seal for fluid passages |
| 4651301033 | HOUSING | Rear cover for valve body |
| 4651203002 | SCREEN SHEET | Fine filtration of hydraulic fluid |
| 4651303005 | SCREEN SHEET | Secondary debris barrier |
| 0636101032 | CAP SCREW | Fastener for housing retention |
| 0630361028 | SEALING CAP | Protects threaded ports from debris |
| 4475280060 | SCREW PLUG | Closes pressure test ports |
| 0634303312 | O-RING | Seals plug-to-housing interface |
Frequently Asked Questions
Q: Can the 4651.183.005 be reused after a transmission rebuild?
A: No. ZF specifies this as a one-time-use component due to compression set of the sealing lip. Always install a new OEM genuine part during overhaul to prevent premature failure.
Q: Does this part require special tools for installation?
A: Yes. A seal driver with a 68.5 mm outer diameter is recommended to avoid distorting the metal casing. Using a socket or hammer can damage the HOUSING bore.
Q: What is the typical service interval for this component?
A: ZF recommends replacing the 4651.183.005 every 3,000 operating hours or during any major transmission disassembly. It should always be paired with a new O-RING for optimal sealing.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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