Sachs DMF91173 Dual Mass Flywheel

The Sachs DMF91173 is an OE-quality dual mass flywheel engineered to transmit engine torque to the clutch while dramatically reducing torsional vibrations in the drivetrain. Designed for vehicles with manual transmissions, this precision-manufactured component addresses the increased rotational irregularities produced by modern high-torque, low-RPM engines.

Key Features:

• Dual mass design with primary and secondary flywheel masses connected by arc spring dampers
• Effectively isolates engine vibrations to protect transmission components and improve drivability
• Reduces noise, vibration, and harshness (NVH) throughout the drivetrain
• Manufactured to OE specifications for proper form, fit, and function
• Includes integrated ring gear for starter engagement
• Engineered with precision bearings to support radial and axial loads

Important Installation Notes:

• Dual mass flywheels cannot be resurfaced and must be replaced as a complete assembly
• Should be inspected for freeplay and sideplay wear whenever the clutch is replaced
• Always use new flywheel mounting bolts with proper thread sealant during installation

Sachs, now part of ZF Aftermarket, has been a trusted name in clutch and drivetrain technology for over a century. This dual mass flywheel delivers the quiet operation, smooth engagement, and transmission protection that modern vehicles demand, especially in low-speed, high-torque driving conditions.