Overview
The ZF 4656.272.014 is a precision-engineered OEM genuine component designed specifically for the WG 160 series transmission. This part functions as a critical sealing and alignment element within the transmission housing assembly, ensuring proper fluid containment and shaft support. The SKU 4656.272.014 is manufactured to ZF’s exacting tolerances, making it essential for maintaining the integrity of the gear train and preventing contamination from entering the internal mechanisms. It sits between the main housing sections and works in conjunction with the TRANSMISSION HOUSING to maintain structural rigidity under heavy load conditions.
Symptoms of Failure
- Oil seepage around the housing joint: When the 4656.272.014 seal surface degrades, transmission fluid may leak from the interface between the HOUS.FRONT SECT and the main body, often noticed as drips on the bell housing.
- Intermittent gear engagement hesitation: A worn part can allow slight misalignment, causing delayed or rough shifting during load changes, particularly in WG160 units operating under high torque.
- Increased operational noise from the transmission: As the component loses its damping properties, metallic whining or clattering may become audible, especially when the HOUSING REAR PART shifts out of tolerance.
- Visible metal particles in the oil pan: Advanced wear of this part can generate fine debris, which circulates through the system and accelerates damage to bearings and gears.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.272.014 |
| Material | High-grade steel alloy with nitrided surface |
| Outer Diameter | 142 mm |
| Inner Diameter | 98 mm |
| Thickness | 12.5 mm |
| Weight | 0.85 kg |
| Surface Hardness | HRC 58-62 |
| OEM Reference | ZF 4656.272.014 |
Compatibility
This genuine ZF part is primarily engineered for the WG 160 series transmission, but it also shares dimensional compatibility with the WG 180 and WG 200 models when used in conjunction with the correct HOUSING REAR SECTION. It is not recommended for WG 120 or WG 250 variants without verifying bolt pattern alignment. The part is a direct replacement for original equipment in ZF off-highway and industrial transmissions produced after 2012.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101077 | TRANSMISSION HOUSING | Main structural casing for gear assembly |
| 4656201102 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201103 | HOUSING REAR PART | Rear section housing for output shaft alignment |
| 4656298063 | HOUSING REAR SECTION | Complete rear housing assembly with bearing seats |
| 0631306816 | CYLINDRICAL PIN | Alignment pin for housing dowel positioning |
| 0750301002 | FIXING PLATE | Retention plate for securing internal components |
| 0636100817 | CAP SCREW | M10 fastener for housing section attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for high-flow passages |
| 0636100803 | CAP SCREW | M8 fastener for cover plate mounting |
Frequently Asked Questions
Q: Can the 4656.272.014 be reused after a transmission overhaul?
A: ZF recommends replacing this part during any major rebuild, as the sealing surface can become work-hardened and lose elasticity. Reuse may lead to premature oil leaks around the housing joint.
Q: Is this part compatible with the WG 180 transmission without modification?
A: Yes, the 4656.272.014 is a direct fit for WG 180 models when paired with the correct HOUS.FRONT SECT. However, always verify the bolt pattern against your specific serial number.
Q: What torque specification should be used for the associated cap screws?
A: For the CAP SCREW (0636100817), ZF specifies 45 Nm with thread locker. For the CAP SCREW (0636100803), use 25 Nm. Always consult the service manual for your specific transmission variant.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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