ZF 4661.271.003 COUPLING for WG 90/WG 94 | OEM Genuine Part

Overview

The ZF 4661.271.003 COUPLING is a precision-engineered OEM genuine component designed specifically for the WG 90 and WG 94 series transmissions. This coupling serves as the critical mechanical link between the transmission output shaft and the driveline, ensuring smooth torque transfer and alignment under heavy-duty industrial loads. The SKU 4661.271.003 is manufactured to ZF’s exacting tolerances, providing reliable performance in demanding applications such as construction, mining, and material handling equipment. When installed correctly, this coupling works in concert with the 4661101017: TRANSMISSION HOUSING and the 4661301048: HOUSING II to maintain structural integrity and prevent misalignment that can lead to premature wear.

Symptoms of Failure

• Excessive driveline vibration during acceleration — A worn 4661.271.003 coupling often produces noticeable shaking or shuddering when the transmission shifts under load, indicating degraded elastomeric elements or spline wear.
• Intermittent gear slipping or delayed engagement — As the coupling loses its ability to maintain positive engagement, operators may experience hesitation when shifting between forward and reverse, particularly in WG 94 series transmissions.
• Metallic clicking or clunking noises from the transmission bell housing — This symptom typically signals that the coupling’s internal splines have worn beyond specification, allowing rotational play that impacts the 4661301093: TUBE assembly.
• Visible oil seepage near the output flange — A failing coupling can compromise the seal interface, leading to fluid leaks that may also affect the 0631306174: CYLINDRICAL PIN retention system.

Technical Specifications

Compatibility

This ZF 4661.271.003 COUPLING is primarily engineered for the WG 94 series transmission family, including models WG 94, WG 94/2, and WG 94/3. It also serves as a direct replacement for earlier WG 90 series units where the coupling interface matches. Secondary compatibility extends to WG 180 and WG 200 transmissions when used with the appropriate adapter housing. Always verify the spline count and pilot bore dimensions against your specific transmission model before installation. The coupling integrates directly with the 4661101017: TRANSMISSION HOUSING and the 4661301048: HOUSING II to ensure proper alignment.

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