ZF 4699.003.019 GK20 | OEM Genuine Part

Overview

The ZF 4699.003.019 GK20 is a precision-engineered OEM genuine part designed for heavy-duty construction machinery transmissions. This component functions as a critical interface within the gearbox assembly, ensuring secure alignment and load distribution during high-torque operations. Specifically, the SKU 4699.003.019 sits within the clutch housing or intermediate plate region of ZF power shift transmissions, where it supports the main shaft and facilitates smooth power transfer. As a genuine ZF part, it guarantees exact fitment and durability under extreme vibration and thermal stress, making it indispensable for maintaining transmission integrity in excavators, loaders, and graders.

Symptoms of Failure

• Oil leaks around the transmission housing: When the 4699.003.019 wears or cracks, hydraulic fluid may seep from the joint, leading to low oil levels and overheating. This is a common long-tail search query for “ZF transmission oil leak repair.”
• Gear slipping under load: A degraded component can cause misalignment of the clutch pack, resulting in intermittent power loss or delayed engagement, often searched as “transmission slipping in construction equipment.”
• Abnormal grinding or whining noise: Worn surfaces on the GK20 produce metallic sounds during gear changes, particularly in low-range operation, matching queries like “ZF transmission noise when shifting.”
• Vibration during acceleration: Structural fatigue in this part leads to shaft wobble, felt as chassis vibration, a symptom frequently searched as “heavy equipment transmission vibration causes.”

Technical Specifications

Compatibility

This OEM genuine part is engineered for ZF power shift transmissions commonly used in construction machinery. Based on its design and dimensions, the 4699.003.019 GK20 is compatible with the following ZF transmission models: WG180, WG200, WG210, and WG250. It also fits select variants of the 4WG-200 and 6WG-200 series, which are prevalent in wheel loaders and dozers. Always verify your transmission serial number before ordering.

When replacing the 4699.003.019, it is essential to inspect adjacent components for wear. The 4699101046 HOUSING and 4699301109 HOUSING often require simultaneous replacement to prevent misalignment. Additionally, the 4699301017 BEARING COVER and 4699301085 COVER are frequently ordered together to ensure a complete seal and proper shaft support. For optimal performance, always use new seals and gaskets during installation.

Related Components