LS ENGINE FLYWHEELS

12571611

1997–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 6-bolt LS pattern; 3.110" (79mm)
  • Converter Bolt Pattern Diameter: 11.5" Single Disc
  • Starter Ring Gear Teeth: 168
  • Flywheel used for LS engines with 6-bolt crankshaft flange

24240678

2009–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 8-bolt
  • Converter Bolt Pattern Diameter: 9.5" Dual Disc
  • Starter Ring Gear Teeth: 168
  • LSA Production Dual Mass with 8-bolt crankshaft flange
  • Also fits LSX454

12598613

2009–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 9-bolt
  • Converter Bolt Pattern Diameter: 10" Dual Disc
  • Starter Ring Gear Teeth: 168
  • LS9 Production with 9-bolt crankshaft flange

LS ENGINE FLEXPLATES

12654640

1997–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 6-bolt LS pattern 3.110" (79mm)
  • Converter Bolt Pattern Diameter: 11.062" (281mm)
  • Starter Ring Gear Teeth: 168
  • Flexplate used for LS engines
  • Fits stock LS-4L60 family torque converter

19260102

1997–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 6-bolt LS pattern 3.110" (79mm)
  • Converter Bolt Pattern Diameter: 11.5" (292.1mm)
  • Starter Ring Gear Teeth: 168
  • Flexplate only used together with Spacer 12563532 and Bolts 19257940 (4L80 family)

12636325

2009–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 8-bolt
  • Converter Bolt Pattern Diameter: 11.062" (281mm)
  • Starter Ring Gear Teeth: 168
  • LSA Production Flexplate
  • Also fits LSX-454

19125691

2009–up 

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 8-bolt
  • Converter Bolt Pattern Diameter: 11.5" (292.1mm)
  • Starter Ring Gear Teeth: 168
  • Modified LSA 12636325 Flexplate (see above) for use in flywheel kit 19125597

12620099

2014–up

  • Outside Diameter: 14"
  • Crank Flange Bolt Pattern: 8-Bolt LS/LT pattern
  • Converter Bolt Pattern Diameter: 11.062" (281mm)
  • Starter Ring Gear Teeth: 168
  • Production Gen V truck flexplate

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Unless specifically noted to the contrary herein, vehicles equipped with Chevrolet Performance parts that are emissions-related may not meet U.S., Canadian, and state and provincial laws and regulations relating to motor-vehicle emissions. These parts are designed and intended for use in vehicles operated exclusively for competition: in racing or organized competition on courses separate from public streets or highways. Visit www.chevroletperformance.com/emissions for more details.