ZF 4660.306.176 NOZZLE for WG200/WG92/WG98 | OEM Genuine Part

Overview

The ZF 4660.306.176 NOZZLE is a precision-engineered fluid metering component designed for the hydraulic control circuits within the WG200, WG92, and WG98 transmission series. This OEM genuine part regulates oil flow to critical clutch packs and valve bodies, ensuring consistent shift pressure and thermal stability. As a direct replacement for the SKU 4660.306.176, it maintains the exact orifice diameter and material hardness required by ZF’s original assembly specifications. The nozzle sits within the valve body channel, often adjacent to the 4660198001: PERIPHERALS kit, which includes sealing rings and gaskets for a complete hydraulic circuit overhaul.

Symptoms of Failure

• Erratic or delayed gear engagement – A worn nozzle disrupts pilot pressure, causing hesitation when shifting from Neutral to Drive or Reverse.
• Oil leaks around the valve body – Cracks in the nozzle body allow pressurized ATF to bypass, leading to visible drips or puddling under the transmission.
• Harsh or flared shifts – Inconsistent flow through the nozzle results in clutch pack slip or sudden engagement, particularly during 2-3 and 3-4 upshifts.
• Low line pressure warnings – Diagnostic codes for insufficient main pressure often trace back to a restricted or eroded nozzle orifice.

Technical Specifications

Compatibility

This nozzle is engineered for ZF’s WG series powershift transmissions, specifically the WG180, WG200, WG92, and WG98 models. It is a critical component in the hydraulic control system that works in concert with the 0501209818: RANGE SELECTOR valve assembly and the 4660101011: TRANSMISSION HOUSING. For complete rebuilds, pairing this nozzle with the 4660301018: HOUSING ensures proper alignment of the oil galleries. Always verify your transmission’s serial number against ZF’s parts catalog, as minor revisions exist between early and late production units.

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