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Progressive Suspension
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Progressive Suspension 444 Series 13.5in. Shocks - Chrome - 444-4021C

444-4021C

Description

Features the all new Frequency Sensing Technology (FST) which allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
Deflective disc valving
Adjust spring pre-load by hand, no special tool needed
Includes a progressive rate spring and is high-pressure gas charged for consistent performance
Standard or heavy duty spring rate with a black or chrome finish
Sold in pairs
Made In USA

Product Series

Application List

YearsMakeModelApplicationNotes
2018 - 2020Harley DavidsonFLHC Heritage Classic 107
2018 - 2020Harley DavidsonFLHCS Heritage Classic 114
1997 - 2020Harley DavidsonFLHR Road King
2007 - 2013Harley DavidsonFLHRC Road King Classic
1998 - 2006Harley DavidsonFLHRCI Road King Classic
1997 - 2006Harley DavidsonFLHRI Road King
2004 - 2007Harley DavidsonFLHRS Road King Custom
2007 - 2007Harley DavidsonFLHRSE3 Screamin Eagle Road King
2008 - 2008Harley DavidsonFLHRSE4 Screamin Eagle Road King
2013 - 2013Harley DavidsonFLHRSE5 CVO Road King
2014 - 2014Harley DavidsonFLHRSE6 CVO Road King
2002 - 2002Harley DavidsonFLHRSEI Screamin Eagle Road King
2003 - 2003Harley DavidsonFLHRSEI2 Screamin Eagle Road King 2
2004 - 2006Harley DavidsonFLHRSI Road King Custom
2017 - 2020Harley DavidsonFLHRXS Road King Special
1997 - 2020Harley DavidsonFLHT Electra Glide Standard
1997 - 2013Harley DavidsonFLHTC Electra Glide Classic
1997 - 2006Harley DavidsonFLHTCI Electra Glide Classic
2004 - 2004Harley DavidsonFLHTCSE Screamin Eagle Electra Glide
2005 - 2005Harley DavidsonFLHTCSE2 Screamin Eagle Electra Glide 2
1997 - 2019Harley DavidsonFLHTCU Electra Glide Ultra Classic
1997 - 2006Harley DavidsonFLHTCUI Electra Glide Ultra Classic
2015 - 2016Harley DavidsonFLHTCUL Electra Glide Ultra Classic Low
2006 - 2006Harley DavidsonFLHTCUSE Screamin Eagle Ultra Classic Electra Gli
2007 - 2007Harley DavidsonFLHTCUSE2 Screamin Eagle Ultra Classic Electra Gl
2008 - 2008Harley DavidsonFLHTCUSE3 Screamin Eagle Ultra Classic Electra Gl
2009 - 2009Harley DavidsonFLHTCUSE4 CVO Ultra Classic Electra Glide
2010 - 2010Harley DavidsonFLHTCUSE5 CVO Ultra Classic Electra Glide
2011 - 2011Harley DavidsonFLHTCUSE6 CVO Ultra Classic Electra Glide
2012 - 2012Harley DavidsonFLHTCUSE7 CVO Ultra Classic Electra Glide
2013 - 2013Harley DavidsonFLHTCUSE8 CVO Ultra Classic Electra Glide
2003 - 2006Harley DavidsonFLHTI Electra Glide Standard
2010 - 2014Harley DavidsonFLHTK Electra Glide Ultra Limited
2015 - 2020Harley DavidsonFLHTK Ultra Limited
2015 - 2019Harley DavidsonFLHTKL Ultra Limited Low
2014 - 2020Harley DavidsonFLHTKSE CVO Limited
2006 - 2020Harley DavidsonFLHX Street Glide
2006 - 2006Harley DavidsonFLHXI Street Glide
2014 - 2020Harley DavidsonFLHXS Street Glide Special
2010 - 2020Harley DavidsonFLHXSE CVO Street Glide
2011 - 2011Harley DavidsonFLHXSE2 CVO Street Glide
2012 - 2012Harley DavidsonFLHXSE3 CVO Street Glide
2010 - 2011Harley DavidsonFLHXXX Street Glide Trike
1998 - 2009Harley DavidsonFLTR Road Glide
1998 - 2006Harley DavidsonFLTRI Road Glide
2020 - 2020Harley DavidsonFLTRK Road Glide Limited
2009 - 2009Harley DavidsonFLTRSE3 CVO Road Glide
2000 - 2000Harley DavidsonFLTRSEI Screamin Eagle Road Glide
2001 - 2001Harley DavidsonFLTRSEI2 Screamin Eagle Road Glide 2
2011 - 2019Harley DavidsonFLTRU Road Glide Ultra
2011 - 2016Harley DavidsonFLTRUSE CVO Road Glide Ultra
2015 - 2020Harley DavidsonFLTRX Road Glide
2010 - 2013Harley DavidsonFLTRX Road Glide Custom
2015 - 2020Harley DavidsonFLTRXS Road Glide Special
2018 - 2020Harley DavidsonFLTRXSE CVO Road Glide
2012 - 2012Harley DavidsonFLTRXSE CVO Road Glide Custom
2013 - 2013Harley DavidsonFLTRXSE2 CVO Road Glide Custom

Shipping Information

  • Item Requires Shipping
  • 5.0 lbs.
  • W6.0000” x H10.0000” x L4.0000”
  • Free Ground Shipping (1 - 5 Days)