Overview
This OEM genuine ZF 4656.006.117 component is a critical internal control element specifically engineered for the WG 115 Series transmission. Positioned within the valve body assembly, it modulates hydraulic pressure to ensure precise clutch engagement and smooth gear shifts. The SKU 4656.006.117 is manufactured to ZF’s exacting tolerances, guaranteeing a direct replacement that restores factory performance. When paired with a robust TRANSMISSION HOUSING, this part forms the hydraulic backbone of the shift sequence.
Symptoms of Failure
When the 4656.006.117 wears out, operators often notice delayed engagement when shifting from neutral to drive. A second common symptom is erratic gear hunting under light load, where the transmission struggles to hold a ratio. You may also experience intermittent loss of forward or reverse pressure, leading to a “no-move” condition. Finally, internal leakage past this component can cause gradual overheating of the transmission fluid, accelerating wear on surrounding assemblies like the HOUS.FRONT SECT.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4656.006.117 |
| Material | Hardened alloy steel with corrosion-resistant coating |
| Weight | 0.85 kg (1.87 lbs) |
| Dimensions (L x W x H) | 95 mm x 45 mm x 30 mm |
| OEM Reference | ZF 4656.006.117 (Genuine) |
| Operating Pressure | 12–18 bar (174–261 psi) |
Compatibility
This genuine ZF part is primarily designed for the WG 115 Series transmission family. It is also compatible with select WG 180 and WG 200 models that share the same valve body architecture. Always verify your transmission serial number before ordering. For complete assembly integrity, ensure the HOUSING REAR PART and HOUSING REAR SECTION are inspected concurrently for any signs of cracking or distortion.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101056 | TRANSMISSION HOUSING | Main structural casing for gear train and valve body |
| 4656201075 | HOUS.FRONT SECT | Front section housing pump and torque converter interface |
| 4656201077 | HOUSING REAR PART | Rear casing supporting output shaft and governor |
| 4656298049 | HOUSING REAR SECTION | Intermediate rear section for clutch pack alignment |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing mating |
| 4656301148 | FIXING PLATE | Retains valve body components in position |
| 0636100817 | CAP SCREW | M10 fastener for housing-to-case attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for hydraulic circuit protection |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump return line |
| 0636100803 | CAP SCREW | M8 fastener for valve body cover plate |
Frequently Asked Questions
Q: Can I install the 4656.006.117 without replacing the housing gaskets?
A: It is strongly recommended to replace all sealing surfaces, including those on the HOUS.FRONT SECT, to prevent cross-leakage and pressure loss.
Q: How do I know if my WG115 uses this exact part number?
A: Check the valve body identification tag on your transmission. The 4656.006.117 is standard on WG115 units built after 2015. Earlier units may require the 4656.006.116 variant.
Q: What torque should I use for the cap screws when reinstalling?
A: For the CAP SCREW (M10), torque to 45 Nm. For the CAP SCREW (M8), torque to 25 Nm. Always use a calibrated wrench.
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Email: info@partszf.com |
Phone: +86 158 2286 3467 |
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