Overview
This OEM genuine ZF 4656.006.015 component is a critical internal sealing and alignment element specifically engineered for the WG 115 Series transmission. Positioned within the main gear train housing assembly, this part ensures precise oil flow control and maintains structural integrity between rotating shafts. The SKU 4656.006.015 acts as a barrier against contamination while supporting the hydraulic circuit that governs clutch engagement. It interfaces directly with the TRANSMISSION HOUSING and the HOUS.FRONT SECT to create a sealed operating environment for the planetary gear sets.
Symptoms of Failure
- Hydraulic pressure loss during gear shifts: A worn 4656.006.015 allows internal bypass, causing delayed or harsh engagement when shifting from neutral to drive.
- External oil seepage near the bell housing: Deterioration of this seal leads to visible fluid accumulation around the joint between the HOUSING REAR PART and the main casing.
- Contaminated transmission fluid with metallic debris: When this part fractures, it sheds particles that circulate through the valve body, accelerating wear on clutch packs.
- Whining noise from the transmission center section: Loss of sealing clearance creates air entrainment in the oil, producing a high-pitched sound under load.
Technical Specifications
| Parameter | Value |
|---|---|
| OEM Part Number | 4656.006.015 |
| Material | Hardened alloy steel with nitrile coating |
| Outer Diameter | 112 mm |
| Inner Diameter | 68 mm |
| Thickness | 14.5 mm |
| Weight | 0.34 kg |
| Operating Temperature Range | -40°C to +150°C |
| OEM Reference | ZF 4656.006.015 |
Compatibility
This genuine ZF part is designed primarily for the WG 115 Series transmission, but it also fits select models in the WG180 and WG200 families when used with the correct HOUSING REAR PART. It is compatible with all WG115 variants produced after 2012, including the WG115-6 and WG115-8 configurations. For non-WG115 applications, verify that the TRANSMISSION HOUSING bore diameter matches 112 mm before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4656101031 | TRANSMISSION HOUSING | Main structural casing that encloses all rotating components |
| 4656201075 | HOUS.FRONT SECT | Forward section housing the torque converter interface |
| 4656201036 | HOUSING REAR PART | Rear casing that supports output shaft bearings |
| 4472239179 | HOUSING REAR PART | Alternate rear housing for extended gear ratio sets |
| 0631306816 | CYLINDRICAL PIN | Alignment dowel for precise housing positioning |
| 4656301148 | FIXING PLATE | Retention bracket securing the seal assembly |
| 0636100817 | CAP SCREW | M10 fastener for housing attachment |
| 4656301016 | SCREEN SHEET | Fine mesh filter for oil return circuit |
| 4656301017 | SCREEN SHEET | Coarse mesh pre-filter for sump pickup |
| 0636100803 | CAP SCREW | M8 fastener for screen sheet retention |
Frequently Asked Questions
Q: Can the 4656.006.015 be reused after a transmission rebuild?
A: No. This OEM part is a single-use component. The nitrile coating deforms permanently during initial torque application, and reusing it will cause immediate fluid bypass and pressure loss.
Q: What tools are required to replace this part in a WG115 transmission?
A: You will need a 112 mm seal driver, a torque wrench capable of 45 Nm, and a bearing puller to remove the old component without damaging the HOUSING REAR PART bore.
Q: How does this part differ from the 4656.006.014 variant?
A: The .015 revision features a thicker inner lip (14.5 mm vs 12 mm) to accommodate the updated output shaft diameter used in post-2015 WG115 transmissions. Always verify your shaft diameter before ordering.
📞 Need this part? Contact our ZF specialists:
Email: info@partszf.com |
Phone: +86 158 2286 3467 |
Request a Quote →
