ZF 6006.022.228 FS SG 6 S for WG200 | OEM Genuine Part

Overview

The ZF 6006.022.228 FS SG 6 S for WG200 is a precision-engineered synchronizer assembly designed for the WG 200 series of off-highway transmissions. This OEM genuine part, identified by SKU 6006.022.228, sits within the main gear cluster and is responsible for facilitating smooth gear engagement during shifts. It directly interfaces with the TRANSMISSION HOUSING to ensure proper alignment and load distribution. As a critical wear component, it maintains the integrity of the shift system under high-torque conditions.

Symptoms of Failure

When the ZF 6006.022.228 synchronizer assembly begins to degrade, operators will notice distinct operational issues. Common failure symptoms include:

• Hard shifting or gear grinding – A worn synchronizer cannot match shaft speeds, causing audible grinding when engaging forward or reverse gears.
• Gear slippage under load – If the synchronizer hub loses its friction grip, the transmission may jump out of gear during heavy hauling.
• Metallic debris in transmission fluid – Bronze or steel particles from the synchronizer ring contaminate the oil, often visible during routine drain intervals.
• Delayed engagement – A noticeable lag between moving the shift lever and gear engagement indicates the synchronizer is failing to lock properly.

Technical Specifications

Compatibility

This synchronizer assembly is engineered for the ZF WG 200 series transmissions, specifically the WG200 model. It is also compatible with the WG180 series when used with the appropriate TRANSMISSION HOUSING variant. The part fits all FS SG 6 S shift configurations within these series. For proper identification, always cross-reference the TYPE PLATE on your transmission to confirm the exact model variant. Installation requires the use of a GROOVED STUD to secure the assembly to the shift fork.

Related Components