LuK DMF025 Dual Mass Flywheel

The LuK DMF025 is an OE-quality dual-mass flywheel designed to provide superior vibration dampening and smooth power transfer between the engine and transmission. As a critical component of the clutch system, this flywheel features a two-piece design with a primary section that bolts to the crankshaft and a secondary section onto which the clutch mounts, effectively absorbing engine vibrations before they reach the drivetrain.

Key Features:

• OEM-grade dual-mass flywheel construction engineered to original equipment specifications
• Precision-balanced steel construction with 135-tooth starter ring gear
• Flywheel friction surface outer diameter of 9.528 inches (242mm)
• Inner diameter of 5.827 inches (148mm) for optimal clutch plate engagement
• 100% functionally tested to meet OEM performance standards
• Cannot be resurfaced - replacement only design ensures proper heat dissipation
• Prevents transmission gear rattle by isolating engine torque spikes

Unlike single-mass flywheels that can be resurfaced, dual-mass flywheels must be replaced when worn to maintain proper functionality. This design minimizes harmful vibrations that can damage engine mounts, transmission gears, and the crankshaft. LuK products are never resurfaced, ensuring you receive a factory-fresh component with full heat absorption capacity. Typical replacement intervals range from 50,000 to 80,000 miles depending on driving conditions.

Cross-Reference Numbers: 4150072100, 986 114 012 01, 986 114 012 02, 986 114 012 05, DMF91121, 167025