Progressive Suspension 444 Series Shock - 13.5" - Standard/Heavy-Duty - Chrome
Progressive Suspension
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Product Details
Progressive Suspension 444 Series Shock - 13.5" - Standard/Heavy-Duty - Chrome. Fits 139 Harley-Davidson models from 1977 to 2025, including the 1200 Custom EFI XLC, 1200 Low EFI XLL and 1200 Roadster EFI XLR. Manufacturer part number 4444003C.
Features
- Feature 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
- Include a progressive-rate spring and are high-pressure gas charged for consistent performance
- Shocks slightly longer than stock may alter head angle slightly and provide quicker steering.
- Shocks slightly shorter than stock may alter head angle and provide slower steering.
- Before purchasing or attempting to install shocks different than OEM length, confirm your wheel travel can be altered without causing clearance issues, such as swingarm/axle to exhaust contact and chain/belt guard or tire contact.
- Heavy duty applications recommended for bikes operating at or near maximum load rating over 50% of the time.
Prop65 Notice · WARNING
This product can expose you to chemicals, including chromium, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov
Specifications
- Vendor Part Number
- 4444003C
- Package Height
- 3.55
- Package Length
- 17.06
- Package Width
- 6.74
- Brand
- Progressive Suspension
- Parts Unlimited #
- 1310-0752
- Adjustment Style
- Automatic
- Color/Finish
- Chrome
- Duty
- Standard
- Extended Length (in)
- 13.50"
- Model
- 444 Series
- Mounting Position
- Rear
- Progressive Spring Rate (lb/in)
- 90.00 lb/in - 130.00 lb/in
- Reservoir Location
- Internal
- Riding Style
- Street
- Spring Type
- Single Progressive Rate
- Type
- Coilover Monotube
- Unit of Measure
- Pair
Fitment
139 vehicles| Year | Make | Make / Model Model |
|---|---|---|
| 2002 - 2006 | Harley-Davidson |
Harley-Davidson 1200 Custom EFI XLC 1200 Custom EFI XLC |
| 2006 | Harley-Davidson |
Harley-Davidson 1200 Low EFI XLL 1200 Low EFI XLL |
| 2006 | Harley-Davidson |
Harley-Davidson 1200 Roadster EFI XLR 1200 Roadster EFI XLR |
| 2004 - 2006 | Harley-Davidson |
Harley-Davidson 883 Custom EFI XLC 883 Custom EFI XLC |
| 2009 | Harley-Davidson |
Harley-Davidson 883 EFI XL 883 EFI XL |
| 2006 | Harley-Davidson |
Harley-Davidson 883 Low EFI XLL 883 Low EFI XLL |
| 2006 | Harley-Davidson |
Harley-Davidson 883 Roadster EFI XLR 883 Roadster EFI XLR |
| 2007 | Harley-Davidson |
Harley-Davidson 883 Roadster XLR 883 Roadster XLR |
| 2014 | Harley-Davidson |
Harley-Davidson CVO Road King FLHRSE CVO Road King FLHRSE |
| 2025 | Harley-Davidson |
Harley-Davidson CVO Street Glide FLHXSE CVO Street Glide FLHXSE |
| 1979 | Harley-Davidson |
Harley-Davidson Café Racer XLCR Café Racer XLCR |
| 1995 | Harley-Davidson |
Harley-Davidson Electra Glide Classic EFI FLHTCI Electra Glide Classic EFI FLHTCI |
| 2006 | Harley-Davidson |
Harley-Davidson Electra Glide Classic FLHTC Electra Glide Classic FLHTC |
| 1995 - 2025 | Harley-Davidson |
Harley-Davidson Electra Glide Police FLHTPI Electra Glide Police FLHTPI |
| 1983 - 2006 | Harley-Davidson |
Harley-Davidson Electra Glide Police FLHTP Electra Glide Police FLHTP |
| 2000 - 2002 | Harley-Davidson |
Harley-Davidson Electra Glide Standard EFI FLHTI Electra Glide Standard EFI FLHTI |
| 1983 - 1985 | Harley-Davidson |
Harley-Davidson Electra Glide Standard FLHT Electra Glide Standard FLHT |
| 1998 - 2006 | Harley-Davidson |
Harley-Davidson Electra Glide Ultra Classic FLHTCU Electra Glide Ultra Classic FLHTCU |
| 2014 | Harley-Davidson |
Harley-Davidson Electra Glide Ultra Classic Low FLHTCUL Electra Glide Ultra Classic Low FLHTCUL |
| 1985 | Harley-Davidson |
Harley-Davidson FLH Electra Glide FLH Electra Glide |
| 2021 | Harley-Davidson |
Harley-Davidson FLH Electra Glide Revival FLH Electra Glide Revival |
| 1980 - 1981 | Harley-Davidson |
Harley-Davidson FLHC Electra Glide Classic FLHC Electra Glide Classic |
| 2023 | Harley-Davidson |
Harley-Davidson FLHFB Electra Glide Highway King FLHFB Electra Glide Highway King |
| 1994 - 2022 | Harley-Davidson |
Harley-Davidson FLHR Road King FLHR Road King |
| 2007 - 2013 | Harley-Davidson |
Harley-Davidson FLHRC Road King Classic FLHRC Road King Classic |
| 1998 - 2006 | Harley-Davidson |
Harley-Davidson FLHRCI Road King Classic FLHRCI Road King Classic |
| 1996 - 2006 | Harley-Davidson |
Harley-Davidson FLHRI Road King FLHRI Road King |
| 2004 - 2007 | Harley-Davidson |
Harley-Davidson FLHRS Road King Custom FLHRS Road King Custom |
| 2007 | Harley-Davidson |
Harley-Davidson FLHRSE3 Screamin Eagle Road King FLHRSE3 Screamin Eagle Road King |
| 2008 | Harley-Davidson |
Harley-Davidson FLHRSE4 Screamin Eagle Road King FLHRSE4 Screamin Eagle Road King |
| 2013 | Harley-Davidson |
Harley-Davidson FLHRSE5 CVO Road King FLHRSE5 CVO Road King |
| 2002 | Harley-Davidson |
Harley-Davidson FLHRSEI Screamin Eagle Road King FLHRSEI Screamin Eagle Road King |
| 2003 | Harley-Davidson |
Harley-Davidson FLHRSEI2 Screamin Eagle Road King 2 FLHRSEI2 Screamin Eagle Road King 2 |
| 2004 - 2006 | Harley-Davidson |
Harley-Davidson FLHRSI Road King Custom FLHRSI Road King Custom |
| 2017 - 2025 | Harley-Davidson |
Harley-Davidson FLHRXS Road King Special FLHRXS Road King Special |
| 1980 - 1993 | Harley-Davidson |
Harley-Davidson FLHS Electra Glide Sport FLHS Electra Glide Sport |
| 1986 - 2019 | Harley-Davidson |
Harley-Davidson FLHT Electra Glide Standard FLHT Electra Glide Standard |
| 1983 - 2013 | Harley-Davidson |
Harley-Davidson FLHTC Electra Glide Classic FLHTC Electra Glide Classic |
| 1996 - 2006 | Harley-Davidson |
Harley-Davidson FLHTCI Electra Glide Classic FLHTCI Electra Glide Classic |
| 2004 | Harley-Davidson |
Harley-Davidson FLHTCSE Screamin Eagle Electra Glide FLHTCSE Screamin Eagle Electra Glide |
| 2005 | Harley-Davidson |
Harley-Davidson FLHTCSE2 Screamin Eagle Electra Glide 2 FLHTCSE2 Screamin Eagle Electra Glide 2 |
| 1989 - 2019 | Harley-Davidson |
Harley-Davidson FLHTCU Electra Glide Ultra Classic FLHTCU Electra Glide Ultra Classic |
| 1995 - 2006 | Harley-Davidson |
Harley-Davidson FLHTCUI Electra Glide Ultra Classic FLHTCUI Electra Glide Ultra Classic |
| 2015 - 2016 | Harley-Davidson |
Harley-Davidson FLHTCUL Electra Glide Ultra Classic Low FLHTCUL Electra Glide Ultra Classic Low |
| 2006 | Harley-Davidson |
Harley-Davidson FLHTCUSE Screamin Eagle Ultra Classic Electra Glide FLHTCUSE Screamin Eagle Ultra Classic Electra Glide |
| 2007 | Harley-Davidson |
Harley-Davidson FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide FLHTCUSE2 Screamin Eagle Ultra Classic Electra Glide |
| 2008 | Harley-Davidson |
Harley-Davidson FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide FLHTCUSE3 Screamin Eagle Ultra Classic Electra Glide |
| 2009 | Harley-Davidson |
Harley-Davidson FLHTCUSE4 CVO Ultra Classic Electra Glide FLHTCUSE4 CVO Ultra Classic Electra Glide |
| 2010 | Harley-Davidson |
Harley-Davidson FLHTCUSE5 CVO Ultra Classic Electra Glide FLHTCUSE5 CVO Ultra Classic Electra Glide |
| 2011 | Harley-Davidson |
Harley-Davidson FLHTCUSE6 CVO Ultra Classic Electra Glide FLHTCUSE6 CVO Ultra Classic Electra Glide |
| 2012 | Harley-Davidson |
Harley-Davidson FLHTCUSE7 CVO Ultra Classic Electra Glide FLHTCUSE7 CVO Ultra Classic Electra Glide |
| 2013 | Harley-Davidson |
Harley-Davidson FLHTCUSE8 CVO Ultra Classic Electra Glide FLHTCUSE8 CVO Ultra Classic Electra Glide |
| 2003 - 2006 | Harley-Davidson |
Harley-Davidson FLHTI Electra Glide Standard FLHTI Electra Glide Standard |
| 2010 - 2014 | Harley-Davidson |
Harley-Davidson FLHTK Electra Glide Ultra Limited FLHTK Electra Glide Ultra Limited |
| 2015 - 2024 | Harley-Davidson |
Harley-Davidson FLHTK Ultra Limited FLHTK Ultra Limited |
| 2015 - 2019 | Harley-Davidson |
Harley-Davidson FLHTKL Ultra Limited Low FLHTKL Ultra Limited Low |
| 2014 - 2021 | Harley-Davidson |
Harley-Davidson FLHTKSE CVO Limited FLHTKSE CVO Limited |
| 1984 - 1985 | Harley-Davidson |
Harley-Davidson FLHX Electra Glide Special FLHX Electra Glide Special |
| 2006 - 2024 | Harley-Davidson |
Harley-Davidson FLHX Street Glide FLHX Street Glide |
| 2006 | Harley-Davidson |
Harley-Davidson FLHXI Street Glide FLHXI Street Glide |
| 2014 - 2023 | Harley-Davidson |
Harley-Davidson FLHXS Street Glide Special FLHXS Street Glide Special |
| 2010 - 2024 | Harley-Davidson |
Harley-Davidson FLHXSE CVO Street Glide FLHXSE CVO Street Glide |
| 2011 | Harley-Davidson |
Harley-Davidson FLHXSE2 CVO Street Glide FLHXSE2 CVO Street Glide |
| 2012 | Harley-Davidson |
Harley-Davidson FLHXSE3 CVO Street Glide FLHXSE3 CVO Street Glide |
| 2022 - 2023 | Harley-Davidson |
Harley-Davidson FLHXST Street Glide ST FLHXST Street Glide ST |
| 2010 - 2011 | Harley-Davidson |
Harley-Davidson FLHXXX Street Glide Trike FLHXXX Street Glide Trike |
| 1980 - 1983 | Harley-Davidson |
Harley-Davidson FLT Tour Glide FLT Tour Glide |
| 1981 - 1993 | Harley-Davidson |
Harley-Davidson FLTC Tour Glide Classic FLTC Tour Glide Classic |
| 1989 - 1995 | Harley-Davidson |
Harley-Davidson FLTCU Tour Glide Ultra Classic FLTCU Tour Glide Ultra Classic |
| 1996 | Harley-Davidson |
Harley-Davidson FLTCUI Tour Glide Ultra Classic FLTCUI Tour Glide Ultra Classic |
| 1998 - 2016 | Harley-Davidson |
Harley-Davidson FLTR Road Glide FLTR Road Glide |
| 1998 - 2006 | Harley-Davidson |
Harley-Davidson FLTRI Road Glide FLTRI Road Glide |
| 2020 - 2024 | Harley-Davidson |
Harley-Davidson FLTRK Road Glide Limited FLTRK Road Glide Limited |
| 2009 | Harley-Davidson |
Harley-Davidson FLTRSE3 CVO Road Glide FLTRSE3 CVO Road Glide |
| 2000 | Harley-Davidson |
Harley-Davidson FLTRSEI Screamin Eagle Road Glide FLTRSEI Screamin Eagle Road Glide |
| 2001 | Harley-Davidson |
Harley-Davidson FLTRSEI2 Screamin Eagle Road Glide 2 FLTRSEI2 Screamin Eagle Road Glide 2 |
| 2011 - 2019 | Harley-Davidson |
Harley-Davidson FLTRU Road Glide Ultra FLTRU Road Glide Ultra |
| 2011 - 2016 | Harley-Davidson |
Harley-Davidson FLTRUSE CVO Road Glide Ultra FLTRUSE CVO Road Glide Ultra |
| 2015 - 2024 | Harley-Davidson |
Harley-Davidson FLTRX Road Glide FLTRX Road Glide |
| 2011 - 2013 | Harley-Davidson |
Harley-Davidson FLTRX Road Glide Custom FLTRX Road Glide Custom |
| 2015 - 2023 | Harley-Davidson |
Harley-Davidson FLTRXS Road Glide Special FLTRXS Road Glide Special |
| 2012 - 2025 | Harley-Davidson |
Harley-Davidson FLTRXSE CVO Road Glide FLTRXSE CVO Road Glide |
| 2013 | Harley-Davidson |
Harley-Davidson FLTRXSE2 CVO Road Glide Custom FLTRXSE2 CVO Road Glide Custom |
| 2022 - 2023 | Harley-Davidson |
Harley-Davidson FLTRXST Road Glide ST FLTRXST Road Glide ST |
| 2024 - 2025 | Harley-Davidson |
Harley-Davidson FLTRXSTSE CVO Road Glide ST FLTRXSTSE CVO Road Glide ST |
| 1987 - 1994 | Harley-Davidson |
Harley-Davidson FXLR Low Rider Custom FXLR Low Rider Custom |
| 1982 - 1994 | Harley-Davidson |
Harley-Davidson FXR Super Glide II FXR Super Glide II |
| 1985 - 1987 | Harley-Davidson |
Harley-Davidson FXRC Low Rider Chrome FXRC Low Rider Chrome |
| 1984 | Harley-Davidson |
Harley-Davidson FXRDG Disc Glide FXRDG Disc Glide |
| 1984 - 1992 | Harley-Davidson |
Harley-Davidson FXRS Low Glide FXRS Low Glide |
| 1983 - 1992 | Harley-Davidson |
Harley-Davidson FXRT Sport Glide FXRT Sport Glide |
| 1989 - 1993 | Harley-Davidson |
Harley-Davidson Low Rider FXRS Low Rider FXRS |
| 2025 | Harley-Davidson |
Harley-Davidson Road Glide Custom FLTRX Road Glide Custom FLTRX |
| 2024 - 2025 | Harley-Davidson |
Harley-Davidson Road Glide Police FLTRXP Road Glide Police FLTRXP |
| 1995 - 1997 | Harley-Davidson |
Harley-Davidson Road King Classic EFI FLHRC Road King Classic EFI FLHRC |
| 2009 - 2013 | Harley-Davidson |
Harley-Davidson Road King Classic FLHRC Road King Classic FLHRC |
| 1995 - 1999 | Harley-Davidson |
Harley-Davidson Road King EFI FLHR Road King EFI FLHR |
| 2014 - 2025 | Harley-Davidson |
Harley-Davidson Road King Police FLHP Road King Police FLHP |
| 1993 | Harley-Davidson |
Harley-Davidson Sport Glide FXRT Sport Glide FXRT |
| 1999 - 2003 | Harley-Davidson |
Harley-Davidson Sportster 1200 XLH Sportster 1200 XLH |
| 2011 - 2012 | Harley-Davidson |
Harley-Davidson Sportster 1200 XR Sportster 1200 XR |
| 1979 - 1985 | Harley-Davidson |
Harley-Davidson Sportster 750 XR Sportster 750 XR |
| 1987 - 2003 | Harley-Davidson |
Harley-Davidson Sportster 883 XLH Sportster 883 XLH |
| 2025 | Harley-Davidson |
Harley-Davidson Street Glide EFI FLHX Street Glide EFI FLHX |
| 2025 | Harley-Davidson |
Harley-Davidson Street Glide Ultra FLHXU Street Glide Ultra FLHXU |
| 1982 - 1983 | Harley-Davidson |
Harley-Davidson Super Glide II FXRS Super Glide II FXRS |
| 1980 - 1994 | Harley-Davidson |
Harley-Davidson Tour Glide Classic FLTC Tour Glide Classic FLTC |
| 1984 - 1986 | Harley-Davidson |
Harley-Davidson Tour Glide FLT Tour Glide FLT |
| 1996 | Harley-Davidson |
Harley-Davidson Tour Glide Ultra Classic FLTCU Tour Glide Ultra Classic FLTCU |
| 1996 - 2019 | Harley-Davidson |
Harley-Davidson XL1200C Sportster 1200 Custom XL1200C Sportster 1200 Custom |
| 2016 - 2020 | Harley-Davidson |
Harley-Davidson XL1200CX Roadster XL1200CX Roadster |
| 2006 - 2011 | Harley-Davidson |
Harley-Davidson XL1200L Sportster 1200 Low XL1200L Sportster 1200 Low |
| 2007 - 2012 | Harley-Davidson |
Harley-Davidson XL1200N Sportster 1200 Nightster XL1200N Sportster 1200 Nightster |
| 2018 - 2021 | Harley-Davidson |
Harley-Davidson XL1200NS Iron 1200 XL1200NS Iron 1200 |
| 2004 - 2009 | Harley-Davidson |
Harley-Davidson XL1200R Sportster 1200 Roadster XL1200R Sportster 1200 Roadster |
| 1996 - 2003 | Harley-Davidson |
Harley-Davidson XL1200S Sportster 1200 Sport XL1200S Sportster 1200 Sport |
| 2014 - 2017 | Harley-Davidson |
Harley-Davidson XL1200T SuperLow 1200T XL1200T SuperLow 1200T |
| 2012 - 2016 | Harley-Davidson |
Harley-Davidson XL1200V Seventy-Two XL1200V Seventy-Two |
| 2010 - 2022 | Harley-Davidson |
Harley-Davidson XL1200X Forty-Eight XL1200X Forty-Eight |
| 2019 | Harley-Davidson |
Harley-Davidson XL1200XS Forty-Eight Special XL1200XS Forty-Eight Special |
| 2007 | Harley-Davidson |
Harley-Davidson XL50 50th Anniversary Sportster XL50 50th Anniversary Sportster |
| 2004 - 2008 | Harley-Davidson |
Harley-Davidson XL883 Sportster XL883 Sportster |
| 1999 - 2009 | Harley-Davidson |
Harley-Davidson XL883C Sportster 883 Custom XL883C Sportster 883 Custom |
| 2005 - 2010 | Harley-Davidson |
Harley-Davidson XL883L Sportster 883 Low XL883L Sportster 883 Low |
| 2011 - 2017 | Harley-Davidson |
Harley-Davidson XL883L SuperLow XL883L SuperLow |
| 2009 - 2022 | Harley-Davidson |
Harley-Davidson XL883N Iron 883 XL883N Iron 883 |
| 2002 - 2007 | Harley-Davidson |
Harley-Davidson XL883R Sportster 883 Roadster XL883R Sportster 883 Roadster |
| 1979 | Harley-Davidson |
Harley-Davidson XLCH XLCH |
| 1977 - 1978 | Harley-Davidson |
Harley-Davidson XLCR Cafe Racer XLCR Cafe Racer |
| 1979 - 1985 | Harley-Davidson |
Harley-Davidson XLH1000 XLH1000 |
| 1986 - 1987 | Harley-Davidson |
Harley-Davidson XLH1100 XLH1100 |
| 1988 - 1998 | Harley-Davidson |
Harley-Davidson XLH1200 XLH1200 |
| 1986 - 2001 | Harley-Davidson |
Harley-Davidson XLH883 XLH883 |
| 1986 - 1995 | Harley-Davidson |
Harley-Davidson XLH883DLX Sportster 883 Deluxe XLH883DLX Sportster 883 Deluxe |
| 1987 - 2003 | Harley-Davidson |
Harley-Davidson XLH883HUG Sportster 883 Hugger XLH883HUG Sportster 883 Hugger |
| 1979 - 1985 | Harley-Davidson |
Harley-Davidson XLS Roadster XLS Roadster |
| 1983 - 1985 | Harley-Davidson |
Harley-Davidson XLX 1000 XLX 1000 |
| 1983 - 1985 | Harley-Davidson |
Harley-Davidson XR1000 XR1000 |
| 2010 | Harley-Davidson |
Harley-Davidson XR1200 XR1200 |
Fitment Disclosure
For reference only, please consult your owner’s manual to confirm your fitment.
General Safety Warning
Failure to follow the manufacturer's recommendations and requirements can cause product failure resulting in serious injury or death. While effort has been taken to collect accurate fitment information, 43 Moto accepts no liability for loss or damage resulting from errors or omissions. If you believe any of the information provided is erroneous, please email [email protected].
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