Overview
The ZF 4143.101.410 HOUSING is a critical structural component engineered for the HL 100 and HL 270 series transmissions. This OEM genuine part serves as the primary enclosure that supports the gear train, valve body, and hydraulic circuits within the transmission assembly. By maintaining precise alignment of internal rotating elements, the housing ensures consistent torque transfer and hydraulic pressure regulation. The SKU 4143.101.410 is manufactured to ZF’s exacting tolerances, providing a direct replacement that restores factory performance. When paired with the 4143101009: HOUSING and the 4143301025: HOUSING, this part forms the backbone of the transmission’s structural integrity.
Symptoms of Failure
- External oil seepage at mating surfaces: A worn or cracked housing allows transmission fluid to escape, often visible as drips near the bell housing or side cover. This leads to low fluid levels and eventual gear slipping.
- Abnormal gear engagement noise: When the housing loses dimensional stability, bearing bores become misaligned, producing a whining or grinding sound during shifting under load.
- Hydraulic pressure fluctuations: Internal cracks or porosity in the housing disrupt oil galleries, causing erratic clutch pack engagement and delayed shifts.
- Vibration during operation: A compromised housing fails to dampen torsional vibrations, resulting in noticeable shaking through the driveline at highway speeds.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4143.101.410 |
| Material | High-grade aluminum alloy (A356-T6) |
| Overall Length | 485 mm |
| Overall Width | 320 mm |
| Overall Height | 210 mm |
| Weight | 8.7 kg (19.2 lbs) |
| OEM Reference | ZF 4143.101.410 |
| Bore Diameter (Main Shaft) | 62.0 mm |
| Bolt Hole Pattern | 8 x M12 on 180 mm PCD |
| Sealing Surface Finish | Ra 0.8 µm |
Compatibility
This housing is designed for ZF HL 100 and HL 270 series transmissions, which are commonly found in medium-duty trucks, buses, and off-highway equipment. It also fits select variants of the WG180 and WG200 models where the housing geometry matches. For applications requiring a complete seal restoration, the 0634313603: O-RING and 4475280018: SCREW PLUG are installed alongside this housing to prevent fluid bypass. Always verify the casting number on your existing housing before ordering.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4143101009 | HOUSING | Secondary structural enclosure for valve body |
| 4143301025 | HOUSING | Intermediate housing for clutch pack support |
| 0634313603 | O-RING | Seals housing-to-housing interface |
| 4475280018 | SCREW PLUG | Closes oil drain or test ports |
| 0501342341 | SUPPORT RING | Reinforces bearing bore alignment |
| 4143298457 | SEAL KIT | Contains all gaskets and O-rings for overhaul |
| 0634313591 | O-RING | Seals oil pump cover to housing |
| 0636101068 | CAP SCREW | Fastens housing sections together |
| 4143221013 | THROTTLE VALVE | Modulates hydraulic pressure for shift timing |
| 0634304484 | O-RING | Seals throttle valve bore in housing |
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