ZF 4661.185.037 ACCESSORIES for WG94 | OEM Genuine Part

Overview

The ZF 4661.185.037 ACCESSORIES for WG94 is a precision-engineered auxiliary component designed to support the hydraulic and mechanical integrity of the WG 94 Series transmission. Positioned within the valve body or control assembly, this genuine OEM part ensures proper fluid routing and pressure regulation during gear shifts. The SKU 4661.185.037 is a factory-specified accessory that works in concert with the 4661101042: TRANSMISSION HOUSING and the 4661301108: HOUSING II to maintain stable transmission operation under heavy loads.

Symptoms of Failure

• Intermittent gear slippage during acceleration – When the 4661.185.037 accessory wears, hydraulic pressure drops, causing the transmission to slip between gears, especially under load.
• Delayed or harsh engagement – A failing accessory can cause a noticeable lag when shifting from Park to Drive or Reverse, often accompanied by a jarring thud.
• Fluid contamination or metallic debris – Internal wear of this part may shed fine metal particles into the transmission fluid, visible during routine fluid changes.
• Erratic shift patterns – The transmission may hunt for gears or fail to hold a gear on inclines, indicating degraded control from this accessory.

Technical Specifications

Compatibility

This genuine ZF accessory is engineered for the WG 94 transmission series, which includes models such as the WG180, WG200, and WG240. It is also compatible with select WG 94 variants used in medium-duty trucks, buses, and off-highway equipment. Always verify your transmission model against the part number 4661.185.037 before installation. For proper assembly, ensure the 0631306174: CYLINDRICAL PIN is correctly aligned and that the 0769123894: TYPE PLATE is affixed for identification.

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