Luk DMF034 Clutch Flywheel

LuK DMF034 Dual Mass Flywheel

The LuK DMF034 is a dual mass flywheel built for specific Hyundai and Kia applications, with dimensions and tooth count matched to the original drivetrain setup. It is engineered to replace a solid flywheel where OE-style damping and driveline protection are required.

For Hyundai Sonata, Hyundai Santa Fe, and Kia Optima fitments, this LuK flywheel is selected to maintain proper clutch engagement characteristics and reduce the stress that can build up in the transmission and engine mounting system.

Key Features

• Dual mass flywheel design for OE-style torsional damping
• Flywheel diameter: 22.5 in. / 8.858 in.
• Flywheel inner diameter: 15 in. / 5.905 in.
• Flywheel cup depth/step height: -0.315 in. / -8 mm
• 110-tooth ring gear configuration
• LuK DMF034 part number for application matching

Detailed Description

LuK DMF034 is a clutch flywheel designed around the dual mass flywheel concept used on select Hyundai and Kia vehicles. The measured diameter, inner diameter, step height, and 110 teeth are critical specifications for proper clutch and starter engagement. Using the correct DMF helps preserve drivetrain smoothness and reduces the mechanical shock that can occur when a solid flywheel is substituted for the original design.

This part cross-references AMS Automotive 167502 for the same application. LuK DMF034 also cross-references 50-2784 for the same application.

Vehicle Fitment

• Fits 2001-2006 Kia Optima, N/A
• Fits 2000-2005 Hyundai Sonata, N/A
• Fits 2005 Hyundai Sonata, N/A, to 03/14/2005
• Fits 2001-2003 Hyundai Santa Fe, N/A
• Fits 1999 Hyundai Sonata, N/A, from 11/26/1998

What It Helps Address

• Excess drivetrain vibration during acceleration and shifting
• Premature wear on engine mounts from torsional shock
• Gearbox stress caused by incorrect flywheel damping
• Crankshaft damage associated with solid flywheel conversion
• Starter engagement issues when tooth count or dimensions do not match

Installation Notes and Tips

Verify the flywheel diameter, inner diameter, step height, and 110-tooth count against the original part before installation. Confirm the vehicle build date for 1999 Hyundai Sonata and 2005 Hyundai Sonata applications, since the fitment is date-specific. Always inspect the clutch system, release components, and crankshaft flange condition during replacement to ensure proper assembly and operation.

Quality Assurance

LuK is an OE-focused drivetrain brand, and this DMF is tuned for the specific vehicle application rather than a universal fit. The design follows the original dual mass flywheel approach to help maintain factory-style driveline behavior in Hyundai Sonata, Hyundai Santa Fe, and Kia Optima applications.