ZF 4108.301.436 INPUT SHAFT for WG100/WG130/WG131 | OEM Genuine Part

Overview

The ZF 4108.301.436 INPUT SHAFT is a precision-machined component engineered for the WG100, WG130, and WG131 series transmissions. This OEM genuine part transfers rotational force from the clutch directly into the gearset, serving as the primary torque input interface. The SKU 4108.301.436 sits within the front housing assembly, where it engages with the 4108101108: HOUSING to maintain precise axial alignment. Its splined end couples with the clutch hub, while the bearing journal supports the 0735330931: BALL BEARING for smooth, low-friction rotation under heavy loads.

Symptoms of Failure

• Transmission gear slipping under load: A worn input shaft spline can cause intermittent disengagement between the clutch and gearset, leading to power loss during acceleration.
• Oil leaks at the front seal area: Excessive shaft wear or scoring damages the sealing surface, allowing transmission fluid to escape past the 4108306172: GASKET and front seal.
• Vibration or whining noise from the bell housing: Bearing journal wear on the input shaft creates radial play, producing a distinct metallic whine that increases with engine RPM.
• Hard shifting or gear clash: A bent or cracked input shaft disrupts synchromesh timing, causing grinding noises when engaging forward or reverse gears.

Technical Specifications

Compatibility

This input shaft is specifically designed for ZF WG100, WG130, and WG131 series transmissions. It is not interchangeable with WG180 or WG200 models due to differing spline counts and bearing journal dimensions. Always verify the 0730365280: TYPE PLATE on your transmission housing to confirm the exact model variant before installation. For WG200 applications, refer to the 4108102072: INPUT assembly designed for heavier-duty torque ratings.

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