ZF 4660.175.015 CLUTCH for WG 92/WG 98 | OEM Genuine Part

Overview

The ZF 4660.175.015 CLUTCH is a critical torque-transfer component engineered specifically for the WG 92 and WG 98 series transmissions. This OEM genuine part sits within the clutch pack assembly, directly engaging and disengaging power flow between the input shaft and planetary gear sets. As a friction-lined disc, it ensures smooth gear shifts and reliable power delivery under heavy-duty industrial loads. The SKU 4660.175.015 is manufactured to ZF’s exacting tolerances, guaranteeing a precise fit and long service life when paired with compatible housings such as the 4950101004: HOUSING and the 4950301018: HOUSING I.

Symptoms of Failure

• Delayed or harsh gear engagement: When the 4660.175.015 clutch disc wears thin, hydraulic pressure cannot fully clamp the pack, causing noticeable hesitation or jerking when shifting from neutral to drive or reverse.
• Transmission oil leaks near the bell housing: A degraded clutch can generate excessive heat, compromising the adjacent 0734309932: SHAFT SEAL, leading to visible fluid seepage around the transmission case.
• Gear slipping under load: Worn friction material on the 4660.175.015 reduces holding capacity, causing the transmission to momentarily lose power during acceleration or when climbing grades.
• Burning smell from transmission fluid: Overheated clutch plates produce a distinct acrid odor, often accompanied by dark, gritty fluid indicating advanced wear.

Technical Specifications

Compatibility

This clutch disc is primarily designed for ZF WG 92 and WG 98 transmissions, commonly found in medium-duty trucks, buses, and off-highway equipment. It also fits select variants of the WG180 and WG200 series when used with the correct 4660101023: TRANSMISSION HOUSING. Always verify spline count and stack height against your existing clutch pack. For complete rebuilds, consider pairing this part with the 4660301058: HOUSING and 0631306174: CYLINDRICAL PIN for optimal alignment.

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