ZF 0501.338.815 BRAKE | OEM Genuine Part

Overview

The ZF 0501.338.815 BRAKE is a critical OEM genuine component designed to manage torque load and provide controlled deceleration within heavy-duty construction machinery transmissions. This part functions as a friction-based stopping mechanism, engaging directly with the planetary gearset to halt rotational output when hydraulic pressure is applied. Located within the clutch pack assembly, the SKU 0501.338.815 ensures precise engagement and disengagement cycles, preventing driveline shock during high-stress operations. Its robust construction is engineered to withstand the extreme heat and particulate contamination common in earthmoving equipment, making it essential for maintaining operational safety and transmission longevity.

Symptoms of Failure

When the ZF 0501.338.815 brake wears out, operators often notice delayed stopping response when shifting from forward to reverse, a condition frequently searched as “transmission brake lag in excavators.” Another common failure sign is intermittent gear slippage under load, particularly when climbing grades or pushing heavy material, which may be accompanied by a burnt clutch odor. You may also detect hydraulic fluid contamination with metallic particles in the filter, indicating friction material degradation. Finally, erratic transmission temperature spikes during normal operation often point to excessive brake drag or partial engagement failure.

Technical Specifications

Compatibility

This brake disc is engineered for integration into ZF WG series powershift transmissions commonly deployed in wheel loaders, dozers, and graders. It is directly compatible with ZF WG180, WG200, and WG210 models, where it serves as the primary parking and service brake element. It also fits select ZF 4WG-200 and 5WG-200 variants used in articulated dump trucks. For proper installation, this brake works in conjunction with the 4699025066 GP25 gear pump, which supplies the hydraulic actuation force. The assembly is housed within the 4699101071 HOUSING, while the 4699102106 INPUT shaft transfers torque to the brake pack, and the 4699103104 OUTPUT flange connects to the final drive.

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