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["Cylinder Heads 1998.5-2002 Cummins 5.9L","Cylinder Heads 2002.5-2004 Cummins 5.9L","Cylinder Heads 2004.5-2007 Cummins 5.9L","Cylinder Heads 2007.5-2009 Cummins 6.7L","Cylinder Heads 2010-2012 Cummins 6.7L","Cylinder Heads 2013-2019 Cummins 6.7L"]
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Fleece Performance Engineering
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Upgrade your Cummins valve springs and retainers with our Fleece Performance spring and retainer kit. Our springs are manufactured from “super clean” Hi-Tensile Chrome Silicon steel with a proprietary multi-step heat treating process that minimizes load loss. These springs have a seat pressure of 105 lbs with an open pressure of 195 lbs at maximum lift. The retainers are thru-hardened 4140 chome moly steel and have a black oxide finish.
APPLICATION NOTES
Fitment: For MY1998.5 - 2018 engines only.
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