ZF 4646.152.442 COUPLING for WG 250/WG 260/WG 310 | OEM Genuine Part

Overview

The ZF 4646.152.442 COUPLING is a critical torque-transfer component engineered specifically for the WG 250, WG 260, and WG 310 transmission series. This OEM genuine part serves as the mechanical interface between the engine output and the transmission input shaft, ensuring precise rotational alignment and dampening torsional vibrations. The SKU 4646.152.442 is manufactured to ZF’s exacting tolerances, providing a direct bolt-on replacement that restores factory-specified driveline performance. When installed alongside the 4646101028: TRANSMISSION HOUSING, this coupling maintains the structural integrity of the entire gear train assembly.

Symptoms of Failure

• Transmission gear slipping under load: A worn 4646.152.442 coupling often causes intermittent power loss during acceleration, particularly in WG 250 series units operating at high torque demands.
• Metallic grinding or clunking noises: When the coupling’s internal splines wear, operators report audible chatter from the bell housing area, especially during gear engagement or deceleration.
• Oil seepage at the transmission input seal: A degraded coupling can misalign the input shaft, leading to premature seal failure and visible fluid leaks around the 4646301095: HOUSING interface.
• Vibration through the driveline: Excessive play in the coupling creates harmonic vibrations felt in the chassis at specific RPM ranges, often misdiagnosed as engine issues.

Technical Specifications

Compatibility

This coupling is designed for the ZF WG series powershift transmissions, specifically the WG 250, WG 260, and WG 310 models. It is also compatible with the WG 180 and WG 200 series when used with the appropriate 4646301087: COVER adapter. The part integrates directly with the 0636015304: HEXAGON SCREW fasteners to secure the coupling to the transmission input hub. Always verify your transmission’s serial number against ZF’s application guide before installation.

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