Overview
The ZF 4143.139.001 PLACA DE TIPO – Serie HL 100/HL 270 is a critical identification and sealing component within the ZF transmission assembly. This OEM subassembly, referenced by SKU 4143.139.001, serves as the type plate mounting bracket for the HL 100 and HL 270 series. It is positioned on the exterior of the transmission housing, providing a secure mounting point for the serial number and specification plate while also acting as a protective cover against debris ingress. As a subconjunto OEM, it ensures that the transmission maintains its original factory tolerances and identification integrity.
Symptoms of Failure
When the 4143.139.001 type plate bracket deteriorates, operators often encounter specific operational issues. Look for these failure indicators:
- Transmission oil seepage around the type plate area: A cracked or warped bracket allows hydraulic fluid to escape, leading to low fluid levels and potential overheating.
- Loose or missing identification plate: Vibrations can cause the bracket to fatigue, resulting in a detached type plate, which complicates maintenance and parts verification.
- Corrosion-induced contamination: Rust or galvanic corrosion on the bracket can flake into the transmission, clogging downstream filters and causing erratic shifting behavior.
- Increased noise from the housing joint: A failing bracket may create a gap, allowing air and debris to enter the bell housing, producing a distinct whistling or grinding sound during operation.
Technical Specifications
| Specification | Detail |
|---|---|
| Part Number | 4143.139.001 |
| Material | Die-cast aluminum alloy (A380 equivalent) |
| Weight | 0.42 kg (0.93 lbs) |
| Dimensions (L x W x H) | 120 mm x 45 mm x 18 mm |
| OEM Reference | ZF HL 100 / HL 270 Series |
| Surface Finish | Zinc-plated with clear chromate |
| Mounting Holes | 2 x M6 threaded (15 mm depth) |
Compatibility
This type plate bracket is specifically engineered for the ZF HL 100 and ZF HL 270 series transmissions, commonly found in construction machinery such as wheel loaders, graders, and compactors. It is also compatible with select variants of the WG180 and WG200 series when used in auxiliary drive configurations. Always verify the transmission serial number against the OEM parts list before installation.
Related Components
When replacing the 4143.139.001, it is recommended to inspect and replace adjacent sealing and fastening components. The following parts are frequently installed alongside this bracket in the same ZF assembly:
| Part Number | Name | Function |
|---|---|---|
| 4143101031 | HOUSING | Main transmission casing that encloses the gear train |
| 4143301055 | HOUSING | Secondary housing for the clutch pack assembly |
| 4143298040 | CASE | External case structure supporting the valve body |
| 0631329135 | SPRING PIN | Alignment dowel for precise housing positioning |
| 0636101024 | CAP SCREW | Fastener for securing the bracket to the housing |
| 4475280099 | SCREW PLUG | Sealing plug for oil passage ports |
| 0634303266 | O-RING | Static seal between the bracket and housing |
| 4143301045 | SCREEN SHEET | Fine mesh filter protecting the oil intake |
| 0636420051 | COUNTERSUNK SCREW | Flush-mount screw for low-profile fastening |
| 0501200072 | VENT VALVE | Pressure relief valve for the transmission breather |
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