Overview
The ZF 4646.298.916 DISC CARRIER is a critical internal component engineered for the WG series of powershift transmissions, including the WG310. This precision-machined carrier houses and aligns the clutch disc packs, ensuring proper torque transfer and smooth gear engagement under heavy load. As an OEM genuine part, SKU 4646.298.916 is manufactured to exact ZF tolerances, directly replacing worn units to restore transmission integrity. It sits within the rotating clutch assembly, interfacing with the TRANSMISSION HOUSING and the HOUSING to maintain concentric alignment. Without a properly functioning disc carrier, the entire clutch pack loses stability, leading to premature wear of adjacent components.
Symptoms of Failure
- Erratic gear engagement or slipping under load — When the disc carrier wears, clutch packs lose clamping force, causing the transmission to slip during acceleration or incline operation.
- Metallic grinding or chattering noises — A damaged carrier allows disc misalignment, producing audible metal-on-metal contact inside the transmission housing.
- Contaminated transmission fluid with metallic debris — Friction from a failing carrier sheds particles into the oil, visible during routine fluid changes.
- Delayed or harsh shifting between gears — Worn splines on the carrier prevent smooth power transfer, resulting in jarring shifts or hesitation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number / SKU | 4646.298.916 |
| Material | High-strength alloy steel, induction-hardened |
| Outer Diameter | Approx. 180 mm |
| Inner Spline Diameter | Approx. 45 mm |
| Overall Height | 65 mm |
| Weight | 2.8 kg (6.2 lbs) |
| OEM Reference | ZF 4646.298.916 |
| Torque Capacity | Up to 310 Nm (WG310 rated) |
Compatibility
This disc carrier is specifically designed for ZF WG series transmissions. Verified compatible models include: WG 258, WG 260, WG 261, WG 308, WG 310, and WG 311. It may also fit earlier WG180 and WG200 variants when used with the correct 螺栓 and TYPE PLATE for identification. Always cross-reference your transmission serial number to confirm fitment. For installation, ensure the carrier mates properly with the TRANSMISSION HOUSING to avoid axial play.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4646101162 | TRANSMISSION HOUSING | Encloses and supports the gear train and clutch assembly |
| 4646301334 | HOUSING | Secondary housing for valve body or clutch pack retention |
| 0636115293 | 螺栓 (Bolt) | Fastener for securing housing and carrier assemblies |
| 0730365125 | TYPE PLATE | Identification plate for transmission model and specs |
| 4646201003 | POT | Oil pot or sump component for fluid distribution |
| 4646106024 | SHIFT SYSTEM | Hydraulic or mechanical shift actuator assembly |
| 4646306071 | GASKET | Seal between housing and adapter plate |
| 4646306072 | ADAPTER PLATE | Mounting plate for auxiliary components |
| 4646306073 | GASKET | Secondary seal for adapter plate interface |
| 0636102065 | CAP SCREW | High-tensile screw for critical fastening points |
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