Overview
This OEM genuine ZF 4656.183.057 component is a critical internal assembly part designed specifically for the WG 160 Series transmission. It functions as a precision-machined guide or actuator element within the valve body or clutch pack housing, ensuring correct hydraulic fluid routing and shift pressure regulation. The SKU 4656.183.057 sits directly adjacent to the main casing structures, working in concert with the TRANSMISSION HOUSING to maintain structural integrity and oil flow paths. Without this genuine part, the transmission cannot achieve proper gear engagement timing.
Symptoms of Failure
- Delayed or harsh shifting: When the 4656.183.057 wears, hydraulic pressure to clutch packs becomes erratic, causing noticeable lag between gear changes or jarring engagement.
- Intermittent loss of drive in forward gears: A worn part can cause temporary pressure drops, leading to the transmission slipping out of gear under load—a common search query for “WG160 transmission slipping forward gears.”
- Oil contamination from metallic debris: Degradation of this component sheds fine metal particles into the fluid, often detected during routine filter inspections or when searching for “ZF transmission metal shavings in pan.”
- Audible whining or grinding from the bell housing area: Misalignment caused by a failing 4656.183.057 creates abnormal contact with the HOUS.FRONT SECT, producing distinct noise during acceleration.
Technical Specifications
| Parameter | Specification |
|---|---|
| OEM Part Number | 4656.183.057 |
| Material | Hardened alloy steel with anti-corrosion coating |
| Weight | 0.85 kg (1.87 lbs) |
| Length | 142 mm |
| Width | 38 mm |
| Height | 28 mm |
| OEM Reference | ZF 4656.183.057 (Genuine) |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF part is engineered for the WG 160 Series transmission family. Based on its design and interface geometry, it is also compatible with the following ZF models: WG 180, WG 200, WG 150, and WG 210. It directly interfaces with the HOUSING REAR PART and the HOUSING REAR PART (alternate variant) to form the sealed rear section of the transmission. Always verify your transmission serial number before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101037 | TRANSMISSION HOUSING | Main structural casing that encloses gear sets and shafts |
| 4656201075 | HOUS.FRONT SECT | Front section housing that supports the torque converter and input shaft |
| 4656201035 | HOUSING REAR PART | Rear casing component that seals the output shaft area |
| 4472239178 | HOUSING REAR PART | Alternate rear housing variant for specific WG series builds |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for precise housing-to-housing positioning |
| 4656301148 | FIXING PLATE | Retaining plate that secures internal valve body components |
| 0636100817 | CAP SCREW | High-tensile fastener for housing assembly |
| 4656301016 | SCREEN SHEET | Fine mesh filter protecting hydraulic circuits from debris |
| 4656301017 | SCREEN SHEET | Alternate mesh filter for different oil circuit configurations |
| 0636100803 | CAP SCREW | M8 cap screw used in valve body attachment points |
Frequently Asked Questions
Q: Can I install the 4656.183.057 without replacing the adjacent housing parts?
A: Yes, but we strongly recommend inspecting the TRANSMISSION HOUSING and both rear housing variants for wear or scoring. If any damage is visible, replace them simultaneously to avoid premature failure of the new part.
Q: How do I confirm this part fits my WG160 transmission?
A: Check the stamped serial number on your transmission’s data plate. The 4656.183.057 is used in WG160 units built after 2012. If your unit is older, verify the internal bore diameter matches 38 mm.
Q: What torque specification should I use for the cap screws securing this component?
A: Use 45 Nm for the CAP SCREW (0636100817) and 35 Nm for the CAP SCREW (0636100803). Always apply thread locker and follow ZF service manual procedures.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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