Luk LFW126 Clutch Flywheel

OE-Style Flywheel for GM Truck Applications

The LuK LFW126 clutch flywheel is built for Chevrolet and GMC manual transmission applications that need a smooth, flat clutch contact surface. It is a new flywheel, not remanufactured, and is engineered to OE specifications for fit and function.

For clutch service on 1992-2000 Chevrolet C1500, C2500, C3500, K1500, K2500, K3500, P30 and GMC C1500, C2500, C3500, K1500, K2500, K3500, P3500 models, this flywheel provides a direct replacement option for the original unit.

Key Features

• Part number: LFW126
• Flywheel diameter: 12.067 in. / 30.65 mm
• Flywheel inner diameter: 21.15 in. / 8.327 mm
• 139-tooth ring gear
• Flywheel cup depth/step height: 0
• New construction, never remanufactured
• Manufactured to OE specifications, including ring gear and dowel pins

Detailed Description

LuK LFW126 is a clutch flywheel designed for GM full-size truck and van applications where clutch replacement requires a true, flat mating surface. The 139-tooth design and OE-spec dimensions help maintain proper clutch engagement and starter interface. This flywheel is a practical alternative to resurfacing when the original unit is worn, heat-checked, or no longer within service limits.

Compatible With 1997-2000 Chevrolet C2500, 1997-2000 Chevrolet C3500, 1997-2000 Chevrolet K2500, 1997-2000 Chevrolet K3500, 1997-2000 GMC C2500, 1997-2000 GMC K2500, 1997-2000 GMC K3500, and other listed Chevrolet and GMC applications. This part cross-references Sachs (e.g., NFW1043) for the same application.

What It Helps Fix

• Clutch chatter caused by an uneven flywheel surface
• Slipping or inconsistent clutch engagement from heat damage
• Starter engagement issues related to worn ring gear teeth
• Vibration or drivability concerns during clutch operation
• Repeat clutch service caused by an out-of-spec flywheel

Installation Notes and Tips

Inspect the clutch kit, pilot bearing, and related hardware before installation. Verify that the flywheel matches the vehicle’s clutch configuration, especially on 1992-1996 Chevrolet and GMC applications where solid flywheel compatibility may vary with specific clutch kits. Confirm tooth count and dimensions against the original part before assembly.

Quality Assurance

LuK manufactures this flywheel to OE specifications and supplies it as a new component for consistent fit and serviceability. The design includes OE-style ring gear and dowel pins for accurate installation on the listed Chevrolet and GMC vehicles.