Overview
This OEM genuine ZF 6073.017.177 is a critical internal component engineered specifically for the WG 115 Series transmission. Positioned within the hydraulic control assembly, this part regulates fluid pressure and flow to ensure precise clutch engagement and gear selection. The SKU 6073.017.177 is manufactured to ZF’s exacting tolerances, making it an essential replacement for maintaining factory-specified shift quality and torque handling. When paired with the TRANSMISSION HOUSING, it forms the core of the valve body system that directs oil to clutches and brakes.
Symptoms of Failure
- Erratic gear engagement and delayed shifting – Worn valve body components cause inconsistent hydraulic pressure, leading to harsh or delayed shifts during acceleration.
- Transmission fluid leaks around the valve body – Deteriorated sealing surfaces allow ATF to escape, often pooling near the HOUS.FRONT SECT interface.
- Slipping in higher gears under load – Insufficient pressure regulation results in clutch pack slippage, particularly noticeable when climbing grades or towing.
- Intermittent neutral drops or loss of drive – Internal wear causes momentary pressure loss, creating a “dead pedal” sensation before drive resumes.
Technical Specifications
| Specification | Value |
|---|---|
| OEM Part Number | ZF 6073.017.177 |
| Material | Hardened steel alloy with corrosion-resistant coating |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 142 mm |
| Width | 68 mm |
| Height | 38 mm |
| OEM Reference | ZF WG 115 Series |
| Operating Pressure Range | 8–22 bar |
Compatibility
This ZF 6073.017.177 component is designed primarily for the WG 115 transmission series. It is also compatible with select models in the WG180 and WG200 families where the valve body architecture shares the same hydraulic circuit design. Always verify the HOUSING REAR PART and HOUSING REAR SECTION alignment before installation, as variations exist between early and late production runs. For mixed-fleet applications, cross-reference your transmission serial number with ZF’s technical documentation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101075 | TRANSMISSION HOUSING | Main structural casing supporting all internal components |
| 4656201085 | HOUS.FRONT SECT | Front section housing the pump and torque converter interface |
| 4656201094 | HOUSING REAR PART | Rear casing enclosing output shaft and planetary gears |
| 4656298060 | HOUSING REAR SECTION | Extended rear section for PTO or auxiliary drive mounting |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing-to-valve body positioning |
| 4656301148 | FIXING PLATE | Retains valve body components against vibration and pressure |
| 0636100817 | CAP SCREW | M8 fastener securing the valve body to the housing |
| 4656301016 | SCREEN SHEET | Fine mesh filter protecting hydraulic circuits from debris |
| 4656301017 | SCREEN SHEET | Secondary filter screen for low-pressure return circuits |
| 0636100803 | CAP SCREW | M6 fastener for securing screen sheets and cover plates |
Frequently Asked Questions
Q: Can the ZF 6073.017.177 be installed without removing the transmission?
A: In most WG115 applications, the valve body assembly is accessible after draining the fluid and removing the oil pan. However, clearance may be tight; we recommend supporting the TRANSMISSION HOUSING properly to avoid misalignment.
Q: How does this part interact with the HOUSING REAR PART (4656201094)?
A: The 6073.017.177 routes pressurized fluid through passages that connect directly to the HOUSING REAR PART. Any wear in the mating surfaces can cause cross-leakage between circuits, leading to the slipping symptoms described above.
Q: What torque specification should be used for the CAP SCREWS (0636100817)?
A: ZF specifies 22 Nm (16 ft-lbs) for the M8 cap screws. Over-tightening can distort the valve body bore, while under-tightening may cause fluid bypass. Always use a calibrated torque wrench.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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