ZF 4616.102.422 INPUT for WG65 | OEM Genuine Part

Overview

The ZF 4616.102.422 INPUT for WG65 is a critical drivetrain component engineered to transfer rotational force from the torque converter directly into the planetary gearset of the WG 65 Series transmission. This OEM genuine part, identified by SKU 4616.102.422, serves as the primary power intake shaft, ensuring precise alignment and minimal energy loss during high-torque operations. It is housed within the forward section of the transmission, interfacing directly with the TRANSMISSION HOUSING to maintain structural integrity under heavy loads. Designed for industrial and commercial vehicle applications, this input shaft is machined to exacting tolerances to withstand continuous stress and thermal expansion.

Symptoms of Failure

• Delayed or harsh engagement: When the 4616.102.422 input shaft wears, operators often notice a lag between shifting and actual gear engagement, accompanied by a jarring clunk.
• Transmission fluid leaks near the bell housing: A worn input shaft seal or surface scoring allows oil to escape, leaving puddles under the vehicle and reducing hydraulic pressure.
• Vibration during acceleration: Excessive play in the input shaft causes driveline shudder, particularly at low RPMs, indicating imminent failure of the spline interface.
• Intermittent gear slipping: As the shaft loses its grip on the clutch pack, the transmission may momentarily lose power delivery under load, a symptom often searched as “ZF WG65 slipping under load.”

Technical Specifications

Compatibility

This input shaft is specifically engineered for the ZF WG 65 Series transmission family. It is a direct fit for models including the WG180, WG200, and WG250, as well as the WG65 variants used in municipal trucks and construction equipment. The part also integrates seamlessly with the HEXAGON SCREW (0636011118) for secure mounting, and it aligns with the HOUSING (4616301304) and HOUSING (4616301309) to form the complete input assembly. Always verify your transmission model number before installation.

Related Components

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