ZF 4616.308.032 COUNTERSHAFT for WG65 | OEM Genuine Part

Overview

The ZF 4616.308.032 COUNTERSHAFT is a critical rotating component within the WG 65 series transmission, responsible for transferring torque between gear clusters and maintaining proper gear mesh alignment. This OEM genuine part, identified by SKU 4616.308.032, sits centrally in the transmission housing and supports the idler gears that enable speed ratio changes. When installed alongside the 4616101059 TRANSMISSION HOUSING, it ensures precise shaft alignment and reduces vibration under heavy loads. The countershaft is machined from high-strength alloy steel to withstand continuous stress in commercial vehicle applications.

Symptoms of Failure

• Gear grinding or whining noise during acceleration: Worn bearing journals on the countershaft cause uneven gear contact, producing audible metallic sounds that intensify under load.
• Intermittent gear slipping or jumping out of gear: A fatigued countershaft can develop micro-cracks, leading to misalignment that prevents proper gear engagement, especially in higher ranges.
• Oil contamination with metallic particles: Surface spalling on the countershaft sheds debris into the transmission fluid, visible as glitter in oil samples during routine checks.
• Vibration through the shift lever or chassis: Bent or worn countershafts create rotational imbalance, transmitting noticeable tremors through the driveline at specific RPMs.

Technical Specifications

Compatibility

This countershaft is designed for the ZF WG 65 transmission family, which includes models such as WG65, WG80, WG100, WG120, WG150, WG180, and WG200. It is also compatible with certain WG 65 variants used in off-highway trucks and construction equipment. For proper installation, ensure the countershaft is paired with the correct 0636011038 HEXAGON SCREW and 0636011118 HEXAGON SCREW for secure mounting. The 0636016015 HEXAGON SCREW is also required for final assembly torque retention.

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