ZF 0501.217.044 MOTOR | OEM Genuine Part

Overview

The ZF 0501.217.044 MOTOR is a critical hydraulic actuation component engineered for heavy-duty construction machinery transmissions. This OEM genuine part converts hydraulic pressure into precise mechanical motion, engaging clutch packs and modulating gear shifts within ZF powershift transmissions. Positioned directly on the transmission valve body, the 0501.217.044 motor controls oil flow to specific clutch circuits, ensuring smooth power delivery under extreme loads. As a direct replacement unit, this SKU restores factory-specified shift timing and prevents drivetrain damage caused by erratic hydraulic response.

Symptoms of Failure

• Delayed or harsh gear engagement – When the 0501.217.044 motor fails, operators often report a 2-3 second lag between selecting a gear and actual engagement, followed by a jarring shift. This is especially noticeable when shifting from neutral to forward on a slope.
• Intermittent transmission slippage under load – A worn motor cannot maintain consistent hydraulic pressure, causing the transmission to slip when the machine is pushing heavy material or climbing. This symptom frequently appears alongside a failing 4699100019: BASIC PARTS kit.
• Oil contamination from internal wear – Degraded seals inside the motor release metallic debris into the hydraulic circuit. This debris accelerates wear on the 4699300139: HOUSING and can clog the 4699300156: GEAR SHAFT lubrication passages.
• Erratic neutral-to-drive response – A sticking motor spool causes the machine to creep forward unexpectedly or fail to engage reverse, creating safety hazards in tight job sites.

Technical Specifications

Compatibility

This motor is designed for ZF WG series powershift transmissions commonly used in wheel loaders, telehandlers, and graders. It directly fits the WG180, WG200, and WG210 models. The 0501.217.044 also appears in certain ErgoPower transmissions from the early 2000s. For proper installation, always inspect the 4699300127: PLANET CARRIER for wear, as a damaged carrier can misalign the motor shaft and cause premature failure.

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