Overview
The ZF 4143.151.405 MULTIDISK BRAKE is a critical friction component engineered for precise torque interruption within the HL 100 and HL 270 series transmission assemblies. This OEM genuine part functions as a load-holding brake, engaging multiple friction disks to halt output shaft rotation under hydraulic pressure. Positioned within the clutch pack housing, the 4143.151.405 directly interfaces with the 4143101014: HOUSING and the 4143301025: HOUSING to create a sealed, high-torque braking circuit. The SKU 4143.151.405 is manufactured to ZF’s exacting tolerances, ensuring consistent engagement and disengagement cycles in heavy-duty industrial applications.
Symptoms of Failure
- Delayed or incomplete braking response: Worn friction material causes the multidisk brake to slip under load, leading to extended stopping distances or unintended vehicle creep.
- Transmission overheating during braking events: Excessive heat generation from metal-on-metal contact indicates the 4143.151.405 friction surfaces have degraded, often accompanied by burnt oil odor.
- Hydraulic fluid contamination: As the brake disks wear, particulate debris enters the transmission fluid, causing premature failure of the 0634313603: O-RING and other sealing elements.
- Erratic gear engagement: A failing multidisk brake disrupts the hydraulic balance in the clutch pack, resulting in harsh shifts or failure to hold the transmission in gear under load.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4143.151.405 |
| Type | Multidisk Brake (Friction Pack) |
| Outer Diameter | 180 mm (estimated) |
| Inner Diameter | 120 mm (estimated) |
| Thickness (Stacked) | 45 mm (estimated) |
| Material | Sintered Bronze on Steel Core |
| Weight | 2.8 kg (estimated) |
| OEM Reference | ZF 4143.151.405 |
| Operating Pressure | 12–18 bar |
Compatibility
This OEM genuine multidisk brake is designed for ZF’s WG180, WG200, and HL series transmissions, including the HL 100 and HL 270 variants. It is also compatible with select 4WG-180 and 4WG-200 torque converter transmissions used in construction and agricultural machinery. The 4143.151.405 replaces earlier brake pack designs and requires proper alignment with the 4475280018: SCREW PLUG for hydraulic circuit sealing. Always verify the stack height against the original assembly before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101014 | HOUSING | Encloses the brake pack and supports hydraulic ports |
| 4143301025 | HOUSING | Secondary housing for clutch pack alignment |
| 0634313603 | O-RING | Seals the brake housing to prevent fluid leaks |
| 4475280018 | SCREW PLUG | Closes hydraulic test ports in the brake circuit |
| 0501342341 | SUPPORT RING | Provides axial support for the brake disk stack |
| 4143298457 | SEAL KIT | Contains all seals for brake pack overhaul |
| 0634313591 | O-RING | Seals the piston bore within the brake assembly |
| 0636101068 | CAP SCREW | Fastens the brake housing to the transmission case |
| 4143221014 | THROTTLE VALVE | Modulates hydraulic flow to the brake piston |
| 0634313164 | O-RING | Secondary seal for the throttle valve bore |
