ZF 2093.128.017 BRAKE | OEM Genuine Part

Overview

The ZF 2093.128.017 BRAKE is a critical OEM genuine friction component engineered for the high-torque environment of ZF powershift transmissions used in construction machinery. This brake assembly is responsible for modulating and halting rotational motion within the planetary gear sets, ensuring precise speed control and safe stationary holding on uneven terrain. As a wear item, the SKU 2093.128.017 directly influences the transmission’s ability to lock output shafts without slippage. It is typically housed within the clutch pack section of the transmission, where it interacts with the 2093109032: DIFFERENTIAL to manage power distribution to the axles. Without a properly functioning brake, the entire driveline loses its ability to hold position under load, making this part indispensable for loader and dozer applications.

Symptoms of Failure

• Transmission brake slipping under load: When the 2093.128.017 wears thin, the machine will creep forward or backward on inclines even with the brake engaged, a common issue in wheel loaders.
• Oil contamination from friction material: As the brake lining degrades, fine particles enter the hydraulic fluid, causing dark, gritty oil and clogging the filter screens.
• Delayed engagement or “brake lag”: Operators may notice a 1-2 second delay between pressing the brake pedal and the machine actually stopping, indicating worn friction surfaces.
• Abnormal high-pitched squealing during braking: Metal-on-metal contact from a completely worn brake plate produces a distinct noise, often accompanied by a loss of holding torque.

Technical Specifications

Compatibility

This brake component is primarily designed for use in ZF WG series powershift transmissions, specifically the WG180 and WG200 models commonly found in compact and mid-size construction loaders. It also fits select iterations of the WG150 and WG250 transmissions where the brake pack configuration matches. The part is often replaced in conjunction with the 0750117075: TAPER ROLLER BEARING which supports the adjacent shaft, and the 2093209094: DIFFERENTIAL which distributes torque after the brake locks. For full axle assembly integrity, verify fitment with the 2093309078: DIFF.HOUSING to ensure proper clearance.

Related Components

Frequently Asked Questions

Q: How do I know if the 2093.128.017 brake is the correct part for my ZF transmission?
A: Verify your transmission model plate (WG180 or WG200) and measure the existing brake plate outer diameter. The 2093.128.017 is a direct OEM replacement for the original friction disc in those specific brake packs.

Q: Can I replace just the brake plate, or should I replace the entire brake pack?
A: While you can replace just the 2093.128.017, it is highly recommended to inspect and replace all friction and steel plates in the pack simultaneously to ensure even wear and consistent braking force.

Q: What causes premature wear on this brake part?
A: The most common causes are low transmission oil level, contaminated hydraulic fluid, or excessive partial braking (riding the brake) during operation, which generates heat and accelerates friction material breakdown.