ZF 0501.329.810 BRAKE | OEM Genuine Part

Overview

The ZF 0501.329.810 BRAKE is a critical OEM genuine component designed for high-stress environments in construction machinery transmissions. This part functions as a friction-based stopping mechanism within the planetary gearset, ensuring controlled deceleration and holding torque during operation. Specifically engineered for ZF power shift transmissions, the SKU 0501.329.810 sits between the rotating clutch packs and the stationary housing, converting hydraulic pressure into mechanical clamping force. When engaged, it prevents unintended rotation of output shafts, making it essential for loader, dozer, and grader applications where precise load control is mandatory.

Symptoms of Failure

• Transmission brake drag or incomplete release: If the 0501.329.810 brake wears unevenly, operators may notice the machine creeping forward or backward when the brake is disengaged, often accompanied by a burning smell from overheated friction material.
• Loss of holding power on inclines: A failing brake will cause the vehicle to roll back on slopes, even with the transmission in park or neutral, indicating insufficient clamping force from the worn friction surfaces.
• Erratic gear engagement or delayed shifting: Worn brake components can cause hydraulic pressure leaks within the clutch housing, leading to soft shifts or complete failure to engage a specific gear range.
• Metallic grinding noise during braking: When the brake lining is fully depleted, metal-on-metal contact occurs between the steel plates, producing a distinct grinding sound that worsens under load.

Technical Specifications

Compatibility

This brake disc is engineered for ZF WG series transmissions commonly used in construction equipment. It is directly compatible with the WG180, WG200, and WG220 models, as well as the WG310 series found in larger wheel loaders. The part also fits select ZF 4WG-200 and ZF 6WG-250 power shift transmissions. Always verify the spline count and stack height against your existing assembly before installation.

During replacement, the brake disc interfaces directly with the 4699101157: HOUSING which contains the hydraulic piston. The 4699201018: HOUSING provides the outer race for the brake pack, while the 4699309080: HOUSING COVER seals the assembly against contamination. Secure the entire stack using the 0636100132: TORX SCREW to ensure proper torque retention under vibration.

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