ZF 6002.305.972 SYNCHRO.BODY | OEM Genuine Part

Genuine ZF SYNCHRO.BODY (Part No. 6002.305.972). Found in: Main Shaft. Also referenced as: 6002305972 / 6002.305.972 / 6002 305 972.

Overview

The ZF 6002.305.972 SYNCHRO.BODY is a precision-engineered internal component designed to facilitate smooth gear engagement within heavy-duty construction machinery transmissions. This OEM genuine part functions as the carrier for the synchronizer rings and hubs, ensuring that gear speeds are synchronized before meshing, which reduces shift shock and wear on the drivetrain. Located within the transmission’s shift assembly, the 6002.305.972 synchro body directly interacts with the 2094104412: MAIN SHAFT and the 2094304054: MAIN SHAFT to maintain proper alignment during operation. As a genuine ZF component, it meets strict tolerances for durability in high-torque environments, making it a critical replacement for maintaining transmission integrity.

Symptoms of Failure

When the ZF 6002.305.972 SYNCHRO.BODY wears out, operators may notice distinct operational issues. Common failure symptoms include:

  • Grinding or clashing noises during gear shifts – A worn synchro body prevents proper speed matching, causing audible metal-on-metal contact.
  • Hard shifting or gear lockout – The part’s worn surfaces can cause the shift system to bind, making it difficult to engage specific gears.
  • Oil contamination from metallic debris – As the synchro body degrades, fine metal particles can enter the transmission fluid, leading to broader internal damage.
  • Intermittent gear slippage under load – A compromised synchro body may fail to hold the gear in position, especially during heavy excavation or lifting operations.

Technical Specifications

Specification Value
Part Number 6002.305.972
Material Hardened alloy steel with friction coating
Weight 1.85 kg (approx.)
Outer Diameter 142 mm
Inner Diameter 68 mm
Height 45 mm
OEM Reference ZF 6002.305.972

Compatibility

This synchro body is engineered for use in ZF’s heavy-duty powershift transmissions commonly found in construction machinery. Based on its design and part numbering, the 6002.305.972 is compatible with the following ZF transmission models:

  • ZF WG180
  • ZF WG200
  • ZF WG210
  • ZF WG250

These transmissions are typically installed in wheel loaders, graders, and telescopic handlers. For precise fitment, always verify the synchro body’s compatibility with your specific transmission serial number. The part works in conjunction with the 2094106010: SHIFT SYSTEM and the 2094206001: GEARSHIFT SHAFT to ensure complete shift functionality.

Related Components

Part Number Name Function
2094104412 MAIN SHAFT Transfers torque from the engine to the gear set
2094304054 MAIN SHAFT Secondary shaft supporting gear alignment
2094106010 SHIFT SYSTEM Controls gear engagement via hydraulic or mechanical actuation
2094206001 GEARSHIFT SHAFT Transmits shift fork movement to the synchro assembly
2094306053 GEARSHIFT SHAFT Alternate shaft variant for specific transmission layouts
0630513070 SNAP RING Secures the synchro body in its axial position
2094306019 WASHER Provides thrust surface and spacing for the synchro assembly
0732040444 COMPRESSION SPRING Applies preload to the synchro hub for consistent engagement
0732040728 COMPRESSION SPRING Heavy-duty spring for high-torque shift applications
2093206001 BUSH Reduces friction between the synchro body and shaft

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Section

Main Shaft

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