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Progressive Suspension Black Heavy Duty 444 Series 12" Shocks - 115/155 Spring Rate (lbs/in) - 444-4058B

  • Part #:
    584494
  • Manufacturer Part #:
    444-4058B

MSRP Price: $624.95

Our Price: $562.46

You Save:
$62.49 (10%)
1 on Hand

Overview of Progressive Suspension Black Heavy Duty 444 Series 12" Shocks - 115/155 Spring Rate (lbs/in) - 444-4058B

  • Uses the all new Frequency Sensing Technology (FST)
  • Allows the shocks to sense the frequency of a bump and automatically adjust damping for superior ride quality
  • Deflective disc valving
  • You no longer need special tools to adjust, simply adjust the spring pre-load by hand
  • High-pressure gas charged with a progressive rate spring creates a consistent performance
  • Sold in pairs
  • Made in the U.S.A.



NOTE: A shock which is slightly longer than stock may alter the head angle slightly and provide somewhat quicker steering.

NOTE: A shock which is slightly shorter than stock may slightly alter the head angle and provide somewhat slower steering.

NOTE: Heavy Duty Applications are recommended for bikes that are operated at or near the manufacturer's maximum load rating over 50% of the time.

Included Items:
(2) Black shocks with black springs
(4) Shouldered sleeves 1/2"
(4) Inner sleeves 3/8"
(4) Washers 1/2"
(4) Washers 1/2" spacers

Specs for Progressive Suspension Black Heavy Duty 444 Series 12" Shocks - 115/155 Spring Rate (lbs/in) - 444-4058B

Length 12 in.
Type Shock Absorber
Units Pair
Weight 8.65 lbs

Cross reference number(s):

13100800

Specs for Progressive Suspension Black Heavy Duty 444 Series 12" Shocks - 115/155 Spring Rate (lbs/in) - 444-4058B

Length 12 in.
Type Shock Absorber
Units Pair
Weight 8.65 lbs

Fitment for Progressive Suspension Black Heavy Duty 444 Series 12" Shocks - 115/155 Spring Rate (lbs/in) - 444-4058B

See if this part fits your ride

Part 584494 fits the following machines

Harley-Davidson
  • 2013 Harley-Davidson Electra Glide Classic - FLHTC
  • 2012 Harley-Davidson Electra Glide Classic - FLHTC
  • 2011 Harley-Davidson Electra Glide Classic - FLHTC
  • 2010 Harley-Davidson Electra Glide Classic - FLHTC
  • 2009 Harley-Davidson Electra Glide Classic - FLHTC
  • 2008 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2007 Harley-Davidson Electra Glide Classic (EFI) - FLHTC
  • 2006 Harley-Davidson Electra Glide Classic Injected - FLHTC I
  • 2009 Harley-Davidson Electra Glide Standard - FLHT
  • 2006 Harley-Davidson Electra Glide Standard - FLHT
  • 2008 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2007 Harley-Davidson Electra Glide Standard (EFI) - FLHT
  • 2006 Harley-Davidson Electra Glide Standard Injected - FLHT I
  • 2018 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2017 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2016 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2015 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2014 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2013 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2012 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2011 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2010 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2009 Harley-Davidson Electra Glide Ultra Classic - FLHTCU
  • 2008 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2007 Harley-Davidson Electra Glide Ultra Classic (EFI) - FLHTCU
  • 2006 Harley-Davidson Electra Glide Ultra Classic Injected - FLHTCU I
  • 2016 Harley-Davidson Electra Glide Ultra Classic Low - FLHTCUL
  • 2015 Harley-Davidson Electra Glide Ultra Classic Low - FLHTCUL
  • 2018 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2017 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2016 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2015 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2014 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2013 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2012 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2011 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2010 Harley-Davidson Electra Glide Ultra Limited - FLHTK
  • 2018 Harley-Davidson Electra Glide Ultra Limited Low - FLHTKL
  • 2017 Harley-Davidson Electra Glide Ultra Limited Low - FLHTKL
  • 2016 Harley-Davidson Electra Glide Ultra Limited Low - FLHTKL
  • 2015 Harley-Davidson Electra Glide Ultra Limited Low - FLHTKL
  • 2009 Harley-Davidson Road Glide - FLTR
  • 2018 Harley-Davidson Road Glide - FLTRX
  • 2017 Harley-Davidson Road Glide - FLTRX
  • 2016 Harley-Davidson Road Glide - FLTRX
  • 2015 Harley-Davidson Road Glide - FLTRX
  • 2008 Harley-Davidson Road Glide (EFI) - FLTR
  • 2007 Harley-Davidson Road Glide (EFI) - FLTR
  • 2013 Harley-Davidson Road Glide Custom - FLTRX
  • 2012 Harley-Davidson Road Glide Custom - FLTRX
  • 2011 Harley-Davidson Road Glide Custom - FLTRX
  • 2010 Harley-Davidson Road Glide Custom - FLTRX
  • 2006 Harley-Davidson Road Glide Injected - FLTR I
  • 2018 Harley-Davidson Road Glide Special - FLTRXS
  • 2017 Harley-Davidson Road Glide Special - FLTRXS
  • 2016 Harley-Davidson Road Glide Special - FLTRXS
  • 2015 Harley-Davidson Road Glide Special - FLTRXS
  • 2013 Harley-Davidson Road Glide Ultra - FLTRU
  • 2012 Harley-Davidson Road Glide Ultra - FLTRU
  • 2011 Harley-Davidson Road Glide Ultra - FLTRU
  • 2018 Harley-Davidson Road King - FLHR
  • 2017 Harley-Davidson Road King - FLHR
  • 2016 Harley-Davidson Road King - FLHR
  • 2015 Harley-Davidson Road King - FLHR
  • 2014 Harley-Davidson Road King - FLHR
  • 2013 Harley-Davidson Road King - FLHR
  • 2012 Harley-Davidson Road King - FLHR
  • 2011 Harley-Davidson Road King - FLHR
  • 2010 Harley-Davidson Road King - FLHR
  • 2009 Harley-Davidson Road King - FLHR
  • 2006 Harley-Davidson Road King - FLHR
  • 2008 Harley-Davidson Road King (EFI) - FLHR
  • 2007 Harley-Davidson Road King (EFI) - FLHR
  • 2013 Harley-Davidson Road King Classic - FLHRC
  • 2012 Harley-Davidson Road King Classic - FLHRC
  • 2011 Harley-Davidson Road King Classic - FLHRC
  • 2010 Harley-Davidson Road King Classic - FLHRC
  • 2009 Harley-Davidson Road King Classic - FLHRC
  • 2008 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2007 Harley-Davidson Road King Classic (EFI) - FLHRC
  • 2006 Harley-Davidson Road King Classic Injected - FLHRC I
  • 2006 Harley-Davidson Road King Custom - FLHRS
  • 2007 Harley-Davidson Road King Custom (EFI) - FLHRS
  • 2006 Harley-Davidson Road King Custom Injected - FLHRS I
  • 2006 Harley-Davidson Road King Injected - FLHR I
  • 2018 Harley-Davidson Road King Special - FLHRXS
  • 2017 Harley-Davidson Road King Special - FLHRXS
  • 2017 Harley-Davidson Street Glide - FLHX
  • 2016 Harley-Davidson Street Glide - FLHX
  • 2015 Harley-Davidson Street Glide - FLHX
  • 2014 Harley-Davidson Street Glide - FLHX
  • 2013 Harley-Davidson Street Glide - FLHX
  • 2012 Harley-Davidson Street Glide - FLHX
  • 2017 Harley-Davidson Street Glide Special - FLHXS
  • 2016 Harley-Davidson Street Glide Special - FLHXS
  • 2015 Harley-Davidson Street Glide Special - FLHXS
  • 2014 Harley-Davidson Street Glide Special - FLHXS
5.0 / 5.0
1 Review
5 Stars
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Finish
5.0 / 5
Fit
5.0 / 5
Quality
5.0 / 5
Value
5.0 / 5
Would you recommend this product?
Yes (1)
Finish
5 / 5
Fit
5 / 5
Quality
5 / 5
Value
5 / 5
Would you recommend this product?
Yes
great shocks
2014 ultra cvo long trips with wife,luggage and golf clubs (no trailer). worth the money.
July 3, 2016
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Instructions and Manuals for Progressive Suspension Black Heavy Duty 444 Series 12" Shocks - 115/155 Spring Rate (lbs/in) - 444-4058B

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