Using only three parts (a laser-welded sealed housing, an internal inertia ring, and highly viscous silicone fluid between the two), SFI-approved Fluidampr harmonic dampers can control all crankshaft vibration–not just a limited frequency range. As a result, you get reduced wear on the main bearings and timing gear, more stable valvetrain operation, and less chance of crank failure.
Bore Diameter 1.1800″
Degree Marking Range TDC, 3 timing marks 2 degrees apart
Degree Markings Engraved
Engine Balance Internal
Finish Black Zinc
Keyway Single
Length 2.480″
Material Steel
Mounting Hardware Included No
Outside Diameter 5-7/8
Pulley Finish Hard Coat Anodized
Safety Rating SFI 18.1
Weight / Rotating Weight 7.8 lbs / 5.2 lbs