Quick Ship SKU #: NMU73ZF6DDS Valair ZF6 Spring Hub Dual Disc 99-03 7.3L Ford Powerstroke

When quality matters, count on Valair! This kit replaces the factory "known for failure" dual mass flywheel and converts it to a single, solid flywheel. This is THE kit for higher horsepower 7.3L's that are daily driven, and especially used for towing.

This kit is available in both a ceramic facing and organic. The ceramic facing is rated for 650 HP, and the organic is rated for 550 HP. Ceramic is a perfect option for those that like to beat on their trucks a little, but aren't doing boosted launches daily (otherwise see our SFI rated dual disc). The organic is PERFECT for those that are doing a fair amount of towing and want a fairly smooth engagement, but still able to handle the power once locked in a gear.