Overview
The ZF 4616.183.009 LOOSE PARTS for WG65 is a critical internal component designed for the WG 65 Series transmission. This OEM genuine part functions as a precision-engineered spacer or guide element within the gear train assembly, ensuring correct axial alignment and load distribution during high-torque operations. Positioned between the main shaft and planetary carriers, the SKU 4616.183.009 directly influences shift quality and torque transfer efficiency. When installed alongside the 4616101140: TRANSMISSION HOUSING, it maintains the structural integrity required for heavy-duty industrial applications.
Symptoms of Failure
- Intermittent gear slipping under load: Worn 4616.183.009 components cause inconsistent pressure on clutch packs, leading to momentary power loss during acceleration.
- Metallic grinding noise from transmission housing: Degraded loose parts create play between shafts, producing audible contact with the 4616301304: HOUSING or 4616301309: HOUSING.
- Delayed engagement when shifting from Neutral to Drive: Internal clearances increase as the part wears, requiring longer hydraulic pressure buildup.
- Contaminated transmission fluid with metallic particles: Surface fatigue of the loose parts sheds debris into the oil circuit, accelerating wear on seals and bearings.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4616.183.009 |
| Material | Case-hardened steel (20MnCr5) |
| Outer Diameter | 68.5 mm |
| Inner Diameter | 42.0 mm |
| Thickness | 12.7 mm |
| Weight | 0.185 kg |
| Surface Hardness | 58-62 HRC |
| OEM Reference | ZF 4616.183.009 |
| Thread Pitch | N/A (press-fit component) |
Compatibility
This OEM genuine part is specifically engineered for the ZF WG 65 Series, but it also integrates with other modular ZF transmissions sharing the same planetary architecture. Verified compatible models include: WG65, WG180, WG200, and WG250. The 4616.183.009 is also used in select Ecomat 4HP and 6HP variants where the loose parts kit is required for shaft retention. Always verify fitment with your transmission serial number before installation. For secure mounting, pair this part with a 0636011118: HEXAGON SCREW to achieve proper clamping torque.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4616101140 | TRANSMISSION HOUSING | Encloses gear train and supports shaft alignment |
| 0636011118 | HEXAGON SCREW | Secures loose parts to housing with M10 thread |
| 4616301304 | HOUSING | Intermediate casing for planetary gear set |
| 4616301309 | HOUSING | Rear housing for output shaft support |
| 0636011038 | HEXAGON SCREW | M8 fastener for auxiliary brackets |
| 0636016015 | HEXAGON SCREW | M12 high-tensile bolt for main flange |
| 0631306085 | CYLINDRICAL PIN | Alignment dowel for housing positioning |
| 0634313118 | O-RING | Hydraulic seal between housing sections |
| 0636304019 | SCREW PLUG | Closes oil gallery access ports |
| 0634801152 | SEALING RING | Prevents fluid leakage at shaft exits |
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