ZF 4657.172.046 COUPLING for WG 190/WG 210 | OEM Genuine Part

Overview

The ZF 4657.172.046 COUPLING is a critical driveline component engineered specifically for the WG 190 and WG 210 transmission series. This OEM genuine part serves as the primary torque-transfer interface between the engine output and the transmission input shaft, ensuring smooth power delivery and vibration dampening. Located within the bell housing assembly, the coupling absorbs torsional shocks that would otherwise stress internal gear sets. The part number 4657.172.046 is laser-etched for authenticity and must be verified during installation to guarantee proper fitment and load capacity.

Symptoms of Failure

• Transmission shudder during acceleration: A worn coupling allows excessive axial play, causing noticeable vibration when torque is applied from a standstill.
• Metallic grinding noise from bell housing: Deteriorated rubber elements in the coupling produce a distinct scraping sound, especially at low RPMs.
• Oil seepage around the input shaft seal: A failing coupling can misalign the shaft, breaking the seal integrity and leading to fluid loss near the front of the transmission.
• Erratic gear engagement in WG 210 units: When the coupling loses its damping capacity, shift quality degrades, often accompanied by harsh engagement in forward gears.

Technical Specifications

Compatibility

This coupling is designed for the ZF WG 190 and WG 210 series transmissions. It also fits select variants of the WG 180 and WG 200 models when used with the correct adapter hardware. Always cross-reference the serial number on your transmission housing. For proper installation, you will need to secure the coupling using a 0636115293: 螺栓 and a 0634313603: O-RING to seal the mating flange. Alignment is achieved with a 0631306816: CYLINDRICAL PIN, while final fastening requires a 0636100801: CAP SCREW torqued to manufacturer specifications.

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