ZF 4143.102.009 INPUT | OEM Genuine Part

Overview

The ZF 4143.102.009 INPUT is a critical OEM genuine component engineered for the HL 100 and HL 270 series transmissions. This precision-machined input shaft assembly serves as the primary torque transfer interface between the engine coupling and the transmission’s planetary gear set. As a high-stress rotating element, the SKU 4143.102.009 must maintain exacting tolerances to ensure smooth power delivery and prevent driveline vibration. When replacing this part, it is essential to also inspect the 4143101016 HOUSING and 4143301039 HOUSING for wear, as these components share the same load-bearing assembly.

Symptoms of Failure

• Torque converter shudder or clutch slip: A worn input shaft spline or bearing surface causes intermittent power loss during acceleration, often misdiagnosed as a failing torque converter.
• Front seal oil leaks: Excessive radial play in the 4143.102.009 shaft degrades the 0501318136 GASKET seal, leading to visible transmission fluid drips near the bell housing.
• Metallic grinding noise in neutral: When the input shaft bearing race deteriorates, a distinct whirring or grinding sound emanates from the transmission case, worsening with engine RPM.
• Delayed or harsh engagement: A worn input shaft pilot bearing causes a momentary lag when shifting from Park to Drive, accompanied by a jarring engagement.

Technical Specifications

Compatibility

This genuine ZF input shaft is designed for the HL 100 and HL 270 transmission series. It is also compatible with the WG180, WG200, and WG210 models used in heavy-duty off-highway equipment. For proper installation, always replace the 0636101084 CAP SCREW and torque to factory specifications. The 4143.102.009 INPUT is not interchangeable with earlier ZF 4HP or 5HP series shafts due to different spline counts and pilot bearing diameters.

Related Components