Overview
This OEM genuine ZF 4681.330.005 component is a critical internal sealing and alignment element designed specifically for the WG 190 Series transmission. Positioned within the hydraulic control assembly, the 4681.330.005 ensures precise fluid routing and maintains the necessary pressure integrity for clutch pack engagement. As an OEM genuine part, it guarantees exact fitment and material composition that aftermarket alternatives cannot replicate. The SKU 4681.330.005 interfaces directly with the TRANSMISSION HOUSING to create a sealed environment, preventing cross-contamination between lubrication and hydraulic circuits.
Symptoms of Failure
When the ZF 4681.330.005 begins to degrade, operators will notice distinct performance issues. The most common symptom is erratic shift timing, where the transmission hesitates or harshly engages between gears due to pressure loss. Another frequent indicator is internal hydraulic fluid seepage accumulating around the bell housing area, often mistaken for a main seal leak. Technicians also report intermittent loss of drive in forward gears, particularly under heavy load conditions, as the worn part fails to maintain adequate backpressure. Finally, contaminated transmission fluid with metallic particles may appear during routine sampling, signaling accelerated wear on adjacent components like the HOUS.FRONT SECT.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4681.330.005 |
| Material Composition | Hardened alloy steel with nitrided surface |
| Outer Diameter | 68.5 mm |
| Inner Diameter | 42.0 mm |
| Thickness | 14.2 mm |
| Weight | 0.185 kg |
| Surface Hardness | HRC 58-62 |
| Operating Pressure Range | 8-22 bar |
| Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF 4681.330.005 part is engineered for the WG 190 Series transmission family. It is directly compatible with the WG180, WG190, and WG200 models used in heavy-duty construction and agricultural equipment. The component also fits select WG210 variants produced after 2015, though cross-referencing with the HOUSING REAR PART is recommended for absolute confirmation. For WG190 transmissions equipped with the HOUSING REAR SECTION, this part serves as the primary sealing interface between the valve body and clutch drum assembly.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4657101088 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4657201183 | HOUS.FRONT SECT | Front section housing for pump drive |
| 4657201184 | HOUSING REAR PART | Rear housing section for output shaft |
| 4657298111 | HOUSING REAR SECTION | Intermediate rear housing adapter |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating |
| 0636100801 | CAP SCREW | M10 fastener for housing retention |
| 4681301015 | FIXING PLATE | Locking plate for valve body |
| 4681301016 | SCREEN SHEET | Fine mesh filter for hydraulic circuit |
| 4681301017 | SCREEN SHEET | Coarse mesh pre-filter for sump |
| 0636100803 | CAP SCREW | M8 fastener for screen retention |
Frequently Asked Questions
Q: Can the 4681.330.005 be replaced without removing the transmission from the vehicle?
A: Yes, in most WG190 applications this part is accessible after draining the fluid and removing the valve body cover. However, on units with the HOUSING REAR PART installed, partial driveline support may be required.
Q: What is the typical service interval for this OEM part?
A: ZF recommends inspection of the 4681.330.005 every 2,000 operating hours or during any major transmission overhaul. Premature failure is often linked to contamination from degraded SCREEN SHEET elements.
Q: Does this part require special tools for installation?
A: Standard socket and torque wrench are sufficient. A seal driver tool is recommended to prevent distortion. Always replace the CYLINDRICAL PIN simultaneously to ensure proper alignment.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
