ZF 6006.022.093 FS SG 6 S for WG200 | OEM Genuine Part

Overview

The ZF 6006.022.093 FS SG 6 S for WG200 is a critical OEM genuine synchronizer assembly engineered for the WG 200 Series of ZF industrial transmissions. This component, identified by SKU 6006.022.093, resides within the main gear cluster and is responsible for enabling smooth, clash-free gear engagement during shifting operations. It interfaces directly with the main shaft and shift forks, ensuring that the rotational speeds of the gears are synchronized before locking into position. For optimal sealing and structural integrity, this synchronizer is often installed alongside a TRANSMISSION HOUSING (4644101212) and a TRANSMISSION HOUSING (4644301221) to maintain precise alignment within the assembly.

Symptoms of Failure

When the ZF 6006.022.093 synchronizer assembly begins to degrade, operators will notice distinct operational issues. Recognizing these symptoms of a failing synchronizer early can prevent catastrophic damage to the gear train.

• Grinding or clashing noises during gear engagement: This is the most common indicator, particularly when shifting into higher gears under load. The worn synchronizer cone can no longer match shaft speeds effectively.
• Gear slipping out of engagement: If the synchronizer hub or sliding sleeve has excessive wear, the transmission may pop out of gear under torque, especially in 5th or 6th gear.
• Hard shifting or blocked gear entry: Operators may need to apply excessive force to the shift lever, or the gear may feel “blocked” entirely. This often points to a damaged synchronizer ring or worn detent springs.
• Metallic debris in the transmission oil: Fine bronze or steel particles found during an oil change indicate that the synchronizer friction surfaces are disintegrating internally.

Technical Specifications

Compatibility

This OEM genuine part is specifically designed for the ZF WG 200 Series transmission family. It is also compatible with the WG 180 series in certain configurations, provided the main shaft spline count matches. The part is a direct replacement for the FS SG 6 S synchronizer assembly used in WG200, WG180, and select Ecomid driveline variants. Always verify the TYPE PLATE (0730365067) on your transmission to confirm the exact model variant before installation. Additionally, ensure the GROOVED STUD (0631311009) is torqued to specification during reassembly to prevent axial play.

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