Fluidampr 830151 Performance Damper | 20-22 GM 6.6L Duramax L5P

We’re excited to bring you this new product release,” remarks project lead, Nick Orefice. Fluidampr has extensive experience with the Duramax L5P engine. Variations of this damper have already seen widespread use by the United States military in their latest high performance light tactical vehicles.  Now it’s ready for all out street performance and professional competition use.

• Broad RPM range torsional vibration protection.


• Reduce risk of crankshaft failure & wear on critical engine parts.


• Unleash lost torque and horsepower.


• Mandrel drive provision. Pre-drilled 3/8”-24 hole on Ø200” bolt circle.


• Removable hard coat anodized aluminum fan pulley (p/n 830151).


• SFI 18.1 certified. Made in USA.

Both dampers are finished in a corrosion resistant black zinc chromate, then laser engraved with a timing mark, Fluidampr – Made in the USA logo, and SFI 18.1 credential.  A pre-drilled 3/8”-24 UNF on Ø3.200 B.C. bolt pattern allows for an accessory pulley, custom mandrel drive, and damper installer/remover tool use. Duramax L5P damper 830151 for 2020-present models feature a hard coat anodized aluminum fan pulley in this mounting.