ZF 0730.104.726 WASHER for WG100 | OEM Genuine Part

Overview

The ZF 0730.104.726 WASHER is a precision-engineered OEM genuine component designed specifically for the WG 100 series transmission. This critical sealing washer sits between the transmission housing and the hydraulic control unit, ensuring a leak-proof interface under high-pressure operating conditions. As an original ZF part, the SKU 0730.104.726 guarantees exact dimensional tolerances and material composition required for optimal oil circulation and pressure regulation within the gearbox. When installed alongside the TRANSMISSION HOUSING (4651101006), this washer prevents fluid bypass that could compromise shift quality.

Symptoms of Failure

• Transmission fluid seepage at housing joint: A worn 0730.104.726 washer often causes visible oil drips around the mating surface between the HOUSING (4651301034) and the control unit, leading to low fluid levels.
• Erratic gear engagement under load: When the washer loses its crush-seal integrity, hydraulic pressure drops, resulting in delayed or harsh shifting during acceleration.
• Whining noise from transmission pump: Air ingestion through a degraded washer creates cavitation, producing a high-pitched whine that worsens as the O-RING (0634303928) also ages.
• Burnt clutch smell from fluid contamination: A failing washer allows debris to enter the oil gallery, accelerating wear on internal components like the HOUSING (4651301013).

Technical Specifications

Compatibility

This washer is engineered for the ZF WG 100 series, including models WG100, WG120, and WG150. It also fits select WG180 and WG200 variants produced after 2008 where the hydraulic block uses the same sealing interface. For proper fitment, always verify the TRANSMISSION HOUSING (4651101006) part number matches your unit. The 0730.104.726 is not compatible with older WG80 or WG90 series transmissions that use a different bolt pattern.

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