Luk LFW109 Clutch Flywheel

LuK LFW109 Flywheel for Ford Truck Applications

The LuK LFW109 clutch flywheel is a new OE-spec replacement for Ford F-250 and Ford F-350 manual transmission applications. It provides the smooth, flat friction surface needed for proper clutch engagement and consistent drivability.

Key Features

• New flywheel, never remanufactured
• Engineered and manufactured to OE specifications
• 16.15 in. flywheel diameter
• 12.402 in. inner diameter
• 180-tooth ring gear
• Zero cup depth / step height for correct clutch setup
• Includes OE-style ring gear and dowel pins

Detailed Description

The LuK LFW109 is built as a direct replacement flywheel for Ford manual transmission clutch service. During clutch replacement, the flywheel surface plays a critical role in clutch contact, release quality, and pedal feel. This flywheel is designed to restore the flat, even surface required for proper clutch operation while avoiding the extra machining step of resurfacing an existing unit. This part cross-references Sachs NFW1121 and Valeo V2116 for the same application.

Compatible With Ford F-250, Ford F-350, and Ford F-250 HD manual transmission applications, the LuK LFW109 supports service work on 1983-1997 trucks listed in the fitment data. It is a practical OE-style replacement for Ford F-250 and Ford F-350 clutch jobs where a new flywheel is preferred over reusing a worn component.

What It Helps Address

• Uneven or heat-spotted flywheel friction surfaces
• Clutch chatter during engagement
• Vibration or shudder from flywheel wear
• Poor clutch contact after a clutch replacement
• Need for a new flywheel instead of resurfacing

Installation Notes and Tips

• Verify flywheel diameter, tooth count, and inner diameter before installation.
• Confirm the clutch kit and flywheel are matched to the vehicle’s manual transmission setup.
• For 1993-1995 Ford F-250 and F-350 applications, replace master and slave cylinders with LMC176 and LSC158 and refer to LB172 for additional upgrade parts.
• Inspect the crankshaft flange and related clutch components during service.

Quality Assurance

LuK manufactures this flywheel to OE specifications using new components, including the ring gear and dowel pins, for consistent fit and function in Ford F-250 and Ford F-350 clutch service.