ZF 4143.103.021 OUTPUT | OEM Genuine Part

Overview

The ZF 4143.103.021 OUTPUT (SKU: 4143.103.021) is a critical OEM genuine component designed for the output shaft assembly in ZF’s HL 100 and HL 270 series transmissions. This part serves as the primary interface between the transmission and the driveline, ensuring precise torque transfer and rotational stability. It sits directly within the rear housing section, working in tandem with the 4143101014 HOUSING to maintain proper alignment. The 4143.103.021 OUTPUT is machined from high-strength alloy steel to withstand continuous heavy-duty cycles in industrial and agricultural machinery.

Symptoms of Failure

• Oil leaks at the output shaft seal: Worn splines or surface scoring on the 4143.103.021 OUTPUT can compromise the seal land, causing transmission fluid to weep or stream from the rear housing.
• Gear slipping under load: Excessive play in the output bearing seat leads to misalignment, resulting in intermittent power loss during acceleration or uphill operation.
• Vibration or driveline shudder: A damaged output shaft creates harmonic imbalance, felt as a low-frequency rumble at speeds above 30 km/h.
• Metallic debris in the oil pan: Flaking or pitting on the shaft surface sheds ferrous particles, often detected during routine oil changes.

Technical Specifications

Compatibility

This OEM genuine output shaft is engineered for the following ZF transmission models: WG180, WG200, HL 100 Series, and HL 270 Series. It is also compatible with select variants of the WG150 and WG250 when used with the correct 0634313603 O-RING and 4475280018 SCREW PLUG. Always verify the housing bore condition using the 4143301025 HOUSING for proper fitment.

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