ZF 4651.153.012 COUPLING for WG 100/WG 110 | OEM Genuine Part

Overview

The ZF 4651.153.012 COUPLING is a critical torque-transfer component engineered specifically for the WG 100 and WG 110 transmission series. This OEM genuine part serves as the mechanical link between the engine output shaft and the transmission input, ensuring smooth power delivery and dampening torsional vibrations. Positioned within the driveline assembly, the coupling (SKU: 4651.153.012) directly interfaces with the TRANSMISSION HOUSING to maintain precise alignment and load distribution. Without this coupling, the transmission cannot engage properly, making it a wear-critical item for any WG 100 Series overhaul.

Symptoms of Failure

• Transmission shudder or vibration during acceleration: A worn 4651.153.012 coupling loses its dampening capacity, causing noticeable driveline shake under load.
• Oil seepage near the bell housing: Degraded coupling seals allow transmission fluid to escape, often mistaken for a failing O-RING or housing gasket.
• Metallic clunking when shifting gears: Excessive play in the coupling creates audible backlash, especially between forward and reverse engagement.
• Reduced torque transfer efficiency: Operators may notice sluggish response or power loss, as the coupling slips internally under high load.

Technical Specifications

Compatibility

This coupling is designed for the ZF WG 100 and WG 110 transmission families. It also fits select WG 180 and WG 200 models when used with the appropriate HOUSING adapter. For WG 200 variants, verify that the TRANSMISSION HOUSING matches the spline count of this coupling. Always cross-reference your transmission serial number to confirm fitment, as late-model WG 110 units may require a revised coupling profile.

Related Components