Overview
The ZF 4656.102.005 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 gearbox assembly, ensuring that hydraulic pressure is maintained and that rotating components remain properly spaced. The SKU 4656.102.005 is often replaced during a major overhaul to prevent internal cross-leakage and to restore factory-specified tolerances. It sits directly between the main housing sections, acting as a barrier that separates lubrication circuits from high-pressure clutch feed circuits.
Symptoms of Failure
When the ZF 4656.102.005 begins to wear, operators typically notice oil leaks at the transmission housing seam, which can appear as drips or wet spots on the bell housing. Another common symptom is erratic gear engagement or delayed shifting, as internal pressure bleeds past the worn component. You may also experience low transmission fluid pressure warnings on the dashboard, even when fluid levels are correct. In severe cases, slipping in forward or reverse gears occurs because the part can no longer maintain the necessary hydraulic seal between clutch packs.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4656.102.005 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Weight | 0.45 kg (1.0 lb) |
| Outer Diameter | 85 mm |
| Inner Diameter | 42 mm |
| Height | 18 mm |
| OEM Reference | ZF 4656.102.005 |
| Operating Temperature Range | -40°C to +120°C |
Compatibility
This genuine ZF part is primarily designed for the WG 160 Series transmission, but it also fits select variants of the WG 180 and WG 200 series when used in off-highway and construction equipment. It is compatible with ZF 4WG-160, 5WG-160, and 6WG-160 models. Always verify your transmission serial number before ordering. The part is often installed alongside the 4656101032: TRANSMISSION HOUSING and the 4656201075: HOUS.FRONT SECT during a full rebuild. For rear-section repairs, the 4656201034: HOUSING REAR PART or the 4472239177: HOUSING REAR PART may also be required.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101032 | TRANSMISSION HOUSING | Main structural casing for gear train |
| 4656201075 | HOUS.FRONT SECT | Front section housing for input shaft support |
| 4656201034 | HOUSING REAR PART | Rear housing for output shaft and PTO |
| 4472239177 | HOUSING REAR PART | Alternate rear housing for specific gear ratios |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for housing mating surfaces |
| 0636100817 | CAP SCREW | Fastener for securing housing sections |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M10 bolt for valve body attachment |
| 4681301040 | OIL FEED.HOUSG. | Pressurized oil distribution manifold |
Frequently Asked Questions
Q: Can I install the 4656.102.005 without replacing the housing gaskets?
A: It is strongly recommended to replace all mating seals and gaskets when installing this part. Using old gaskets with a new 4656.102.005 can lead to immediate fluid leaks and pressure loss.
Q: How do I know if my WG160 needs this specific part?
A: If you are experiencing internal hydraulic leakage or have found metal debris in the oil pan, this component should be inspected. It is commonly replaced during a full clutch pack rebuild.
Q: Is the 4656.102.005 interchangeable with any aftermarket parts?
A: This is an OEM genuine ZF part. While aftermarket alternatives exist, they often lack the precise heat treatment and dimensional tolerances required for long service life in heavy-duty applications.
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Phone: +86 158 2286 3467 |
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