573004 Washer, preload adjuster knob mount of shock absorber
Fits: 18-24 Softail (excl. models without…
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Specifications
- Brand
- MCS
- Part Number
- 573004
- OEM Reference
- 573004
- Pack Quantity
- Each
- Category
- Swingarms Assy
- VAT Rate
- 20%
About This Product
This preload adjuster knob washer is a small but essential hardware piece for the rear shock absorber. Measuring 9/32" x 5/8" x 1/16", it is a direct replacement for OEM 6110. It is designed for use on shock absorbers equipped with an external adjustable preload knob. This washer fits 2018 to 2024 Softail models, excluding those versions that do not feature the external knob. Keeping your suspension hardware in top condition is vital for consistent performance, and using the correct spec washer ensures the adjuster mechanism stays secure and functions as intended during every ride.
Manufacturer part number: 573004.
Fitment
75 models18-24 Softail (excl. models without external preload knob)
CVO/Custom 10 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2009 | CVO Fat Bob (HDI) FXDFSE |
| Harley-Davidson | 2009 | CVO Fat Bob FXDFSE |
| Harley-Davidson | 2010 | CVO Fat Bob FXDFSE2 |
| Harley-Davidson | 2025 | CVO Road Glide FLTRXSE |
| Harley-Davidson | 2023–2024 | CVO Road Glide FLTRXSE |
| Harley-Davidson | 2014–2015 | CVO Softail Deluxe FLSTNSE |
| Harley-Davidson | 2007 | CVO Softail Springer FXSTSSE |
| Harley-Davidson | 2008 | CVO Softail Springer FXSTSSE2 |
| Harley-Davidson | 2025 | CVO Street Glide FLHXSE |
| Harley-Davidson | 2023–2024 | CVO Street Glide FLHXSE |
Police 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2013–2020 | Electra Glide Standard Police FLHTP |
| Harley-Davidson | 2021 | Police Electra Glide FLHTP |
| Harley-Davidson | 2021 | Police Road King FLHP |
| Harley-Davidson | 2013–2020 | Road King Police FLHP |
Softail 45 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2025 | Breakout FXBR |
| Harley-Davidson | 2018 | Breakout 114 Anniversary FXBRS |
| Harley-Davidson | 2018–2022 | Breakout 114 FXBRS |
| Harley-Davidson | 2018–2024 | Breakout FXBR |
| Harley-Davidson | 2018–2020 | Deluxe FLDE |
| Harley-Davidson | 2017 | Deluxe FLSTN |
| Harley-Davidson | 2018–2024 | Fat Bob 114 FXFBS |
| Harley-Davidson | 2018–2020 | Fat Bob FXFB |
| Harley-Davidson | 2025 | Fat Boy FLFB |
| Harley-Davidson | 2018 | Fat Boy 114 Anniversary FLFBS |
| Harley-Davidson | 2020 | Fat Boy 114 Anniversary FLFBSANV |
| Harley-Davidson | 2018–2024 | Fat Boy 114 FLFBS |
| Harley-Davidson | 2023 | Fat Boy Anniversary FLFBSANV |
| Harley-Davidson | 2018–2020 | Fat Boy FLFB |
| Harley-Davidson | 2010–2017 | Fat Boy FLSTF |
| Harley-Davidson | 2012–2015 | Fat Boy FLSTF 103 |
| Harley-Davidson | 2010–2017 | Fat Boy Lo FLSTFB |
| Harley-Davidson | 2012–2015 | Fat Boy Lo FLSTFB 103 |
| Harley-Davidson | 2016–2017 | Fat Boy S FLSTFBS |
| Harley-Davidson | 2019 | FXDR 114 FXDRS |
| Harley-Davidson | 2025 | Heritage Classic FLHC |
| Harley-Davidson | 2018 | Heritage Classic 114 Anniversary FLHCS |
| Harley-Davidson | 2018–2024 | Heritage Classic 114 FLHCS |
| Harley-Davidson | 2023 | Heritage Classic Anniversary FLHCSANV |
| Harley-Davidson | 2018–2021 | Heritage Classic FLHC |
| Harley-Davidson | 2013 | Heritage Softail Classic Anv FLSTC 103 |
| Harley-Davidson | 2010–2017 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2012–2015 | Heritage Softail Classic FLSTC 103 |
| Harley-Davidson | 2006–2010 | Heritage Softail FLST |
| Harley-Davidson | 2006 | Heritage Softail FLSTI |
| Harley-Davidson | 2024 | Hydra-Glide Revival FLI |
| Harley-Davidson | 2022 | Low Rider El Diablo FXRST |
| Harley-Davidson | 2018–2020 | Low Rider FXLR |
| Harley-Davidson | 2025 | Low Rider S FXLRS |
| Harley-Davidson | 2020–2024 | Low Rider S FXLRS |
| Harley-Davidson | 2025 | Low Rider ST FXLRST |
| Harley-Davidson | 2022–2024 | Low Rider ST FXLRST |
| Harley-Davidson | 2008–2011 | Rocker C FXCWC |
| Harley-Davidson | 2008–2009 | Rocker FXCW |
| Harley-Davidson | 2005–2016 | Softail Deluxe FLSTN |
| Harley-Davidson | 2012–2015 | Softail Deluxe FLSTN 103 |
| Harley-Davidson | 2005–2006 | Softail Deluxe FLSTNI |
| Harley-Davidson | 2018–2024 | Sport Glide FLSB |
| Harley-Davidson | 2005–2007 | Springer Classic FLSTSC |
| Harley-Davidson | 2005–2006 | Springer Classic FLSTSCI |
Sportster 4 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2020 | 1200 Custom XL1200C |
| Harley-Davidson | 2008–2010 | Sportster XR1200 |
| Harley-Davidson | 2010–2013 | Sportster XR1200X |
| Harley-Davidson | 2020 | Superlow XL883L |
Touring 3 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2009–2013 | Road King Classic FLHRC |
| Harley-Davidson | 2011 | Road King Classic FLHRC 103 |
| Harley-Davidson | 2025 | Street Glide ULTRA FLHXU |
VRSC 9 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2017 | Night Rod Special VRSCDX |
| Harley-Davidson | 2009–2017 | V-Rod Muscle VRSCF |
| Harley-Davidson | 2008 | VRSCA V-Rod Wide Tire VRSCAW |
| Harley-Davidson | 2009–2010 | VRSCAW V-Rod VRSCAW |
| Harley-Davidson | 2008 | VRSCAW W/Abs VRSCAWA |
| Harley-Davidson | 2008 | VRSCD Night Rod VRSCD |
| Harley-Davidson | 2008 | VRSCDA Night Rod W/Abs VRSCDA |
| Harley-Davidson | 2012 | VRSCDX Night Rod Special Anv VRSCDX |
| Harley-Davidson | 2009–2016 | VRSCDX Night Rod Special VRSCDX |
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