Overview
The ZF 4656.183.062 is a precision-engineered component specifically designed for the WG 160 series transmission. This OEM genuine part plays a critical role in the hydraulic control circuit, ensuring proper oil flow and pressure regulation within the gearbox. Located in the valve body assembly, the 4656.183.062 directly influences shift quality and clutch engagement timing. When this part begins to degrade, the entire transmission’s performance is compromised. As a direct replacement for the WG 160 series, this SKU is manufactured to ZF’s original tolerances, guaranteeing a seamless fit alongside other core assemblies such as the 4656101038: TRANSMISSION HOUSING and the 4656201075: HOUS.FRONT SECT.
Symptoms of Failure
When the ZF 4656.183.062 wears out, operators will notice distinct operational issues. The most common failure symptom is erratic gear engagement where the transmission hesitates or slams into gear. Another frequent indicator is intermittent loss of forward or reverse drive under load, often mistaken for a failing clutch pack. Technicians also report internal hydraulic pressure fluctuations that cause delayed shifting between 2nd and 3rd gear. Finally, contaminated transmission fluid with metallic debris is a clear sign that this internal component is failing and requires immediate replacement to avoid damage to the 4656201037: HOUSING REAR PART.
Technical Specifications
| Specification | Detail |
|---|---|
| OEM Part Number | 4656.183.062 |
| Material | Hardened Steel / Aluminum Alloy |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 95 mm x 45 mm x 30 mm |
| Surface Finish | Zinc-Plated / Phosphate Coated |
| OEM Reference | ZF WG 160 Series |
| Thread Size | M8 x 1.25 (mounting points) |
Compatibility
This genuine ZF 4656.183.062 part is primarily engineered for the WG 160 transmission series. It is also compatible with the WG 180 and WG 200 series transmissions that share the same hydraulic valve body architecture. For applications in the WG 150 and WG 220 series, cross-referencing the part number with your specific transmission serial number is recommended. When replacing this component, always inspect the 4472239180: HOUSING REAR PART for wear, as these two parts work in direct conjunction during high-pressure operation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101038 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft |
| 4656201037 | HOUSING REAR PART | Rear housing for output shaft support |
| 4472239180 | HOUSING REAR PART | Alternate rear housing variant |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing assembly |
| 4656301148 | FIXING PLATE | Secures valve body components |
| 0636100817 | CAP SCREW | M8 fastener for housing retention |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter |
| 0636100803 | CAP SCREW | M6 fastener for cover plates |
Frequently Asked Questions
Q: How do I know if the 4656.183.062 is the correct part for my WG160 transmission?
A: Verify your transmission’s serial number and compare it to the OEM parts list. This part is specific to the hydraulic control module of the WG160 series. If your unit shows signs of erratic shifting or pressure loss, this is a likely culprit.
Q: Can I replace the 4656.183.062 without removing the entire transmission?
A: Yes, in most applications this component is accessible after removing the transmission oil pan and valve body cover. However, we recommend inspecting the 4656301016: SCREEN SHEET simultaneously to ensure no debris has circulated through the system.
Q: What torque specification should I use when installing this part?
A: ZF specifies a torque of 25 Nm (18.4 ft-lbs) for the mounting bolts. Always use a calibrated torque wrench and replace the 0636100803: CAP SCREW if it shows signs of thread wear.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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