Overview
The ZF 4143.151.406 MULTIDISK BRAKE is a critical friction component engineered for precise torque control within the HL 100 and HL 270 series transmissions. This OEM genuine part functions as a hydraulic clutch pack, engaging and disengaging power flow to specific gear sets during shifting operations. Positioned within the main shaft assembly, the 4143.151.406 brake pack absorbs rotational energy to ensure smooth gear transitions and prevent driveline shock. The SKU 4143.151.406 is manufactured to ZF’s exacting tolerances, utilizing high-carbon steel plates and sintered bronze friction linings for consistent performance under heavy loads. When installed alongside the 4143101016: HOUSING and 4143301039: HOUSING, this multidisk brake forms the core of the transmission’s clutch system, requiring precise alignment with the 0501318136: GASKET and 0636101084: CAP SCREW for leak-free operation.
Symptoms of Failure
- Delayed or harsh gear engagement: Worn friction plates cause the brake pack to slip, resulting in a noticeable lag when shifting from neutral to drive or reverse. Operators often report a “clunk” sound during engagement.
- Transmission overheating during low-speed operation: As the multidisk brake loses clamping force, excessive heat builds up in the clutch housing, leading to burnt transmission fluid odors and potential thermal damage to seals.
- Intermittent loss of power to wheels: A failing 4143.151.406 brake pack may cause the transmission to momentarily lose torque under load, particularly when climbing grades or during heavy hauling.
- Visible metal debris in the oil pan: Worn friction material from the brake plates contaminates the hydraulic fluid, often appearing as dark metallic sludge during routine oil changes.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4143.151.406 |
| Type | Multidisk Brake / Clutch Pack |
| Outer Diameter | 180 mm (7.09 in) |
| Inner Diameter | 120 mm (4.72 in) |
| Total Thickness (assembled) | 42 mm (1.65 in) |
| Number of Friction Plates | 6 |
| Number of Steel Plates | 7 |
| Friction Material | Sintered Bronze on Steel Core |
| Weight | 2.8 kg (6.17 lbs) |
| OEM Reference | ZF 4143.151.406 |
| Operating Pressure | 12-18 bar (174-261 psi) |
Compatibility
This OEM multidisk brake is specifically designed for ZF’s HL 100 and HL 270 series transmissions, which are widely used in heavy-duty construction and agricultural machinery. Based on its friction plate count and diameter, the 4143.151.406 is compatible with the following ZF models: WG180, WG200, WG210, and WG250. It also fits select variants of the Ecomat 4HP and 6HP series where the HL clutch housing is utilized. Always verify the clutch pack stack height against your transmission’s service manual before installation.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101016 | HOUSING | Encloses the brake pack and directs hydraulic flow |
| 4143301039 | HOUSING | Secondary housing for clutch piston assembly |
| 0501318136 | GASKET | Seals the housing interface to prevent fluid leaks |
| 0636101084 | CAP SCREW | Secures housing halves with precise torque |
| 0750108044 | PLUG | Closes hydraulic test ports |
| 0636302014 | SCREW PLUG | Seals oil drain or fill passages |
| 0634801057 | SEALING RING | Prevents oil bypass around rotating shafts |
| 0730365092 | TYPE PLATE | Identifies transmission model and serial number |
| 4143201019 | VALVE INSERT | Regulates hydraulic pressure to the brake pack |
| 0634306198 | O-RING | Provides static seal between valve and housing |
