Overview
The ZF 4166.034.094 is a precision-engineered OEM genuine part designed specifically for the WG 160 Series transmission. This component plays a critical role in the hydraulic control system, managing fluid flow to ensure smooth gear engagement and consistent torque delivery. As an integral element within the valve body assembly, the 4166.034.094 regulates pressure modulation and directs lubrication to high-friction zones. When paired with the 4656101056: TRANSMISSION HOUSING, it helps maintain structural integrity under heavy loads. The SKU 4166.034.094 is manufactured to ZF’s exacting tolerances, making it a direct replacement for worn units in commercial vehicle drivetrains.
Symptoms of Failure
When the ZF 4166.034.094 begins to degrade, operators often notice erratic shift timing or delayed engagement between gears. A second common symptom is intermittent loss of hydraulic pressure, which can cause the transmission to slip under acceleration. Over time, internal fluid contamination from worn seals may lead to erratic clutch pack behavior. Finally, audible whining or grinding noises during gear changes frequently indicate that this component requires immediate replacement to avoid cascading damage to the 4656201075: HOUS.FRONT SECT.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4166.034.094 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 112 mm |
| Width | 48 mm |
| Height | 32 mm |
| OEM Reference | ZF WG 160 Series |
Compatibility
This genuine ZF part is primarily engineered for the WG 160 transmission series. It is also compatible with the WG 180 and WG 200 models due to shared hydraulic architecture. The 4166.034.094 interfaces directly with the 4656201077: HOUSING REAR PART and the 4656298049: HOUSING REAR SECTION to form a sealed pressure chamber. For optimal performance, verify your transmission’s serial number against ZF’s compatibility charts before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101056 | TRANSMISSION HOUSING | Encloses gear sets and supports bearing loads |
| 4656201075 | HOUS.FRONT SECT | Front section housing for pump and clutch assembly |
| 4656201077 | HOUSING REAR PART | Rear housing segment for output shaft support |
| 4656298049 | HOUSING REAR SECTION | Reinforced rear section for high-torque applications |
| 0631306816 | CYLINDRICAL PIN | Aligns housing sections during assembly |
| 4656301148 | FIXING PLATE | Secures valve body components in position |
| 0636100817 | CAP SCREW | Fastens housing sections with high clamping force |
| 4656301016 | SCREEN SHEET | Filters debris from hydraulic fluid flow |
| 4656301017 | SCREEN SHEET | Secondary filtration for fine particulate removal |
| 0636100803 | CAP SCREW | Mounting fastener for accessory brackets |
Frequently Asked Questions
Q: How do I know if the 4166.034.094 is failing in my WG160 transmission?
A: Look for delayed forward or reverse engagement, erratic shift points, or visible metal particles in the transmission fluid. These signs often indicate wear on the 4166.034.094 valve component.
Q: Can I replace this part without removing the entire transmission?
A: In most cases, yes. The 4166.034.094 is accessible after removing the transmission oil pan and valve body cover. However, you must also inspect the 4656201075: HOUS.FRONT SECT for any scoring or damage during the procedure.
Q: Is the 4166.034.094 interchangeable with aftermarket alternatives?
A: We strongly recommend using only OEM genuine parts. Aftermarket versions often lack the precise hardness and dimensional tolerances required for reliable operation in WG160, WG180, and WG200 transmissions.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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