Overview
The ZF 4108.203.141 CONNECTING PART is a critical OEM genuine component engineered for the drivetrain assembly of heavy-duty construction machinery. This precision-machined coupling element serves as the structural link between the transmission housing and the intermediate gearbox, ensuring correct axial alignment and torque transfer under extreme load conditions. The SKU 4108.203.141 is manufactured to ZF’s original factory tolerances, making it a direct replacement for worn or damaged units in off-highway equipment. It integrates directly with the TRANSMISSION HOUSING and the HOUSING to form a sealed, vibration-resistant assembly.
Symptoms of Failure
When the ZF 4108.203.141 connecting part degrades, operators may notice these specific failure indicators:
- Transmission oil seepage at the joint interface – A worn connecting part allows lubricant to escape between the housing flanges, often visible as wet streaks on the bell housing.
- Abnormal gear rattle or driveline vibration – Loss of dimensional stability in the connecting part causes misalignment, leading to harsh engagement and audible chatter during load shifts.
- Intermittent power loss under load – A fractured or fatigued connecting part can permit slight rotational play, resulting in delayed torque delivery when the machine is under heavy strain.
- Metal debris in the transmission oil pan – Fretting wear on the connecting part’s mating surfaces sheds fine metallic particles into the lubrication circuit.
Technical Specifications
| Parameter | Value |
|---|---|
| Part Number | 4108.203.141 |
| Material | High-strength nodular cast iron (GGG-40) |
| Overall Length | 185 mm |
| Flange Outer Diameter | 120 mm |
| Bolt Hole Circle | 4 x 12.5 mm (90° spacing) |
| Weight | 2.85 kg |
| OEM Reference | ZF 4108.203.141 |
| Surface Treatment | Phosphate coating for corrosion resistance |
Compatibility
This connecting part is designed for ZF’s WG series powershift transmissions commonly used in wheel loaders, graders, and dozers. It is a direct fit for the following models:
- ZF WG180 – All variants (WG180/181/182)
- ZF WG200 – Standard and heavy-duty configurations
- ZF WG210 – Select off-highway applications
- ZF 4WG-200 – Four-speed versions with integrated drop box
Installation requires proper torquing of the SCREW PLUG and verification of fluid level using the OIL LEVEL GAGE to prevent dry start damage.
Related Components
| Part Number | Name | Function |
|---|---|---|
| 4108101128 | TRANSMISSION HOUSING | Main structural casing for gear sets |
| 4108201296 | HOUSING | Secondary housing for clutch packs |
| 4475280018 | SCREW PLUG | Seals hydraulic passages |
| 0501215601 | OIL LEVEL GAGE | Dipstick for fluid level checks |
| 4108303034 | COVER | Protective cover for access port |
| 0636015120 | HEXAGON SCREW | Fastener for housing attachment |
| 0636302015 | SCREW PLUG | Drain plug for oil pan |
| 0501325471 | SEALING RING | O-ring for leak-proof joints |
| 0730365280 | TYPE PLATE | Identification label for transmission |
| 4108108026 | INTERM.GEARBOX | Intermediate gearbox assembly |
