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2021 GMC Sierra 2500 HD

2021 GMC Sierra 2500 HD Flex Plates

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Flex Plate
Part Number: AC12621644
Guaranteed to Fit
$283.49
Vehicle Fitment
  • 2021 GMC Sierra 2500 HD AT4 8 Cyl 6.6L
  • 2021 GMC Sierra 2500 HD Base 8 Cyl 6.6L
  • 2021 GMC Sierra 2500 HD SLE 8 Cyl 6.6L
  • 2021 GMC Sierra 2500 HD SLT 8 Cyl 6.6L
  • 2021 GMC Sierra 2500 HD Denali 8 Cyl 6.6L
Product Details
Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Flex Plate
Part Number: AC12620099
Guaranteed to Fit
$69.99
Vehicle Fitment
  • 2021 GMC Sierra 2500 HD AT4 8 Cyl 6.6L USE W/3 BOLT CONVERTER
  • 2021 GMC Sierra 2500 HD Base 8 Cyl 6.6L USE W/3 BOLT CONVERTER
  • 2021 GMC Sierra 2500 HD SLE 8 Cyl 6.6L USE W/3 BOLT CONVERTER
  • 2021 GMC Sierra 2500 HD SLT 8 Cyl 6.6L USE W/3 BOLT CONVERTER
  • 2021 GMC Sierra 2500 HD Denali 8 Cyl 6.6L USE W/3 BOLT CONVERTER
Product Details
Quantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

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Engine Knocking Sound: What Does it Mean?
Engine Knocking Sound: What Does it Mean?You may notice that the noise becomes more frequent when engine speed is increased, especially if the sound is due to a failed bearing. What Does a Knocking Noise in the Engine Mean?
Flex Plate vs Flywheel: What’s the Difference?
Flex Plate vs Flywheel: What’s the Difference?The flex plate is bolted to the rear of the crankshaft with a circle of bolts at its center, and is bolted with from 3 to 8 bolts to the torque converter around its outside edge. Most flex plates have the ring gear for the starter drive around their outside
Car Troubles: Where Is That Screeching Noise Coming From?
Car Troubles: Where Is That Screeching Noise Coming From?A screeching noise coming from your engine compartment can typically be isolated with a few simple steps. Make sure to wear safety glasses and keep away from moving parts when checking your vehicle.
A Quick Guide to Flex Plates
A Quick Guide to Flex PlatesThe flex plate gets its name from how its thin shape flexes in response to the force applied by the crankshaft. Its flexibility can compensate for gear shifts, erratic power output, and minor misalignments between the engine and transmission.