Synchronizer Hub 0091 304 342

Description

Synchronizer Hub 0091 304 342, used in ZF transmissions found in Scania, Volvo, and Mercedes heavy-duty vehicles:

Applications & Compatibility

• Common Fitments: Scania Series 4 buses and F/K/N bus variants; ZF gearbox types like S6-1550,G701.
• Cross-Reference OEM Codes:
  • Scania: 1414916
  • Volvo: 85108564, 1662845
  • Mercedes: 001 262 4135, 000 262 6335

Function Within Transmission

• Acts as a central rotating sleeve between gears and sliding collars, facilitating:

  • Smooth synchronization during gear shifts;

  • Precision alignment of gear speeds;

  • Minimization of grinding by locking to gear teeth when speeds match.

Essential in multi-speed ZF transmissions for commercial vehicles.

• Often paired with:
  • Synchronizer cones (e.g., part 0091 304 202 or 0091 302 152)
  • Sliding sleeves, rings, and shift forks specific to ZF G701 gearbox designs
• Frequently sold as part of rebuild kits including match-fit components like bearings and forks.

Summary Table
Attribute Specification
OEM Ref 0091 304 342
Compatible Bg ZF gearbox (e.g. G701, S6‑1550)
Compatible Bikes Scania, Volvo, Mercedes-Benz transmissions
Weight ~1.6 kg
Role Synchronizer hub for smooth gear shifting
Slim Related Parts Sliding sleeve, cones, synchronizer ring