Drag Specialties Replacement Piston — 3.750" bore, 4-3/8" stroke, kit
Fits: Touring 2007-2011 · Softail 2007-2011 · Dyna 2007-2013
Bank transfer
Fits: Touring 2007-2011 · Softail 2007-2011 · Dyna 2007-2013
OEM quality cast aluminum alloy construction delivers reliable durability and consistent performance.
Some fitments feature a protective coating that extends piston life, reduces friction and helps engines run cooler.
Ideal for OEM replacement and an economical solution that balances cost and performance.
Kits include two pistons, wrist pins and clips; accepts OEM or Hastings rings (order separately).
| Bore Oversize | Standard |
|---|
| Model | Years |
|---|---|
| Harley Davidson | |
| FLHR 1584 (Road King) | 2007, 2009, 2011 |
| FLHR 1584 ABS (Road King) | 2008–2011 |
| FLHRC 1584 (Road King Classic) | 2007, 2009–2010 |
| FLHRC 1584 ABS (Road King Classic) | 2009–2011 |
| FLHT 1584 (Electra Glide) | 2007 |
| FLHT 1584 ABS (Electra Glide) | 2009 |
| FLHTC 1584 (Electra Glide Classic) | 2007–2008, 2011 |
| FLHTC 1584 ABS (Electra Glide Classic) | 2010 |
| FLHTCU 1584 (Electra Glide Ultra Classic) | 2011 |
| FLHTCU 1584 ABS (Electra Glide Ultra Classic) | 2008, 2010–2011 |
| FLHTK 1584 ABS (Electra Glide Ultra Limited) | 2010–2011 |
| FLHX 1584 (Street Glide) | 2008–2011 |
| FLHX 1584 ABS (Street Glide) | 2008 |
| FLSTC 1584 (Heritage Softail Classic) | 2009, 2011 |
| FLSTC 1584 ABS (Heritage Softail Classic) | 2011 |
| FLSTF 1584 (Fat Boy) | 2008, 2010–2011 |
| FLSTF 1584 ABS (Fat Boy) | 2011 |
| FLSTFB 1584 (Fat Boy Lo) | 2010–2011 |
| FLSTN 1584 (Softail Deluxe) | 2010–2011 |
| FLSTN 1584 ABS (Softail Deluxe) | 2011 |
| FLSTSB 1584 (Cross Bones Springer) | 2008–2011 |
| FLSTSC 1584 (Softail Springer Classic) | 2007 |
| FLTR 1584 (Road Glide) | 2007–2009 |
| FLTR 1584 ABS (Road Glide) | 2009 |
| FLTRX 1584 (Road Glide Custom) | 2010 |
| FLTRX 1584 ABS (Road Glide Custom) | 2010–2011 |
| FXCW 1584 (Rocker) | 2009 |
| FXD 1584 (Dyna Super Glide) | 2008, 2010 |
| FXDB 1584 (Dyna Street Bob) | 2011–2012 |
| FXDB 1584 ABS (Dyna Street Bob) | 2012–2013 |
+ 13 more models across 1 make in total.
| Manufacturer part number | 21988-07 |
|---|
This product fits the following vehicles. Use the filters below to narrow down the list if needed.
| Manufacturer | Model | Family | Year | Notes |
|---|---|---|---|---|
| Harley Davidson | Road King | Touring | 2007 | |
| Harley Davidson | Road King | Touring | 2009 | |
| Harley Davidson | Road King | Touring | 2011 | |
| Harley Davidson | Road King | Touring | 2008 | |
| Harley Davidson | Road King | Touring | 2009 | |
| Harley Davidson | Road King | Touring | 2010 | |
| Harley Davidson | Road King | Touring | 2011 | |
| Harley Davidson | Road King Classic | Touring | 2007 | |
| Harley Davidson | Road King Classic | Touring | 2009 | |
| Harley Davidson | Road King Classic | Touring | 2010 | |
| Harley Davidson | Road King Classic | Touring | 2009 | |
| Harley Davidson | Road King Classic | Touring | 2010 | |
| Harley Davidson | Road King Classic | Touring | 2011 | |
| Harley Davidson | Electra Glide | Touring | 2007 | |
| Harley Davidson | Electra Glide | Touring | 2009 | |
| Harley Davidson | Electra Glide Classic | Touring | 2007 | |
| Harley Davidson | Electra Glide Classic | Touring | 2008 | |
| Harley Davidson | Electra Glide Classic | Touring | 2011 | |
| Harley Davidson | Electra Glide Classic | Touring | 2010 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2011 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2008 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2010 | |
| Harley Davidson | Electra Glide Ultra Classic | Touring | 2011 | |
| Harley Davidson | Electra Glide Ultra Limited | Touring | 2010 | |
| Harley Davidson | Electra Glide Ultra Limited | Touring | 2011 | |
| Harley Davidson | Street Glide | Touring | 2008 | |
| Harley Davidson | Street Glide | Touring | 2009 | |
| Harley Davidson | Street Glide | Touring | 2010 | |
| Harley Davidson | Street Glide | Touring | 2011 | |
| Harley Davidson | Street Glide | Touring | 2008 | |
| Harley Davidson | Heritage Softail Classic | Softail | 2009 | |
| Harley Davidson | Heritage Softail Classic | Softail | 2011 | |
| Harley Davidson | Heritage Softail Classic | Softail | 2011 | |
| Harley Davidson | Fat Boy | Softail | 2008 | |
| Harley Davidson | Fat Boy | Softail | 2010 | |
| Harley Davidson | Fat Boy | Softail | 2011 | |
| Harley Davidson | Fat Boy | Softail | 2011 | |
| Harley Davidson | Fat Boy Lo | Softail | 2010 | |
| Harley Davidson | Fat Boy Lo | Softail | 2011 | |
| Harley Davidson | Softail Deluxe | Softail | 2010 | |
| Harley Davidson | Softail Deluxe | Softail | 2011 | |
| Harley Davidson | Softail Deluxe | Softail | 2011 | |
| Harley Davidson | Cross Bones Springer | Softail | 2008 | |
| Harley Davidson | Cross Bones Springer | Softail | 2009 | |
| Harley Davidson | Cross Bones Springer | Softail | 2010 | |
| Harley Davidson | Cross Bones Springer | Softail | 2011 | |
| Harley Davidson | Softail Springer Classic | Softail | 2007 | |
| Harley Davidson | Road Glide | Touring | 2007 | |
| Harley Davidson | Road Glide | Touring | 2008 | |
| Harley Davidson | Road Glide | Touring | 2009 | |
| Harley Davidson | Road Glide | Touring | 2009 | |
| Harley Davidson | Road Glide Custom | Touring | 2010 | |
| Harley Davidson | Road Glide Custom | Touring | 2010 | |
| Harley Davidson | Road Glide Custom | Touring | 2011 | |
| Harley Davidson | Rocker | Softail | 2009 | |
| Harley Davidson | Dyna Super Glide | Dyna | 2008 | |
| Harley Davidson | Dyna Super Glide | Dyna | 2010 | |
| Harley Davidson | Dyna Street Bob | Dyna | 2011 | |
| Harley Davidson | Dyna Street Bob | Dyna | 2012 | |
| Harley Davidson | Dyna Street Bob | Dyna | 2012 | |
| Harley Davidson | Dyna Street Bob | Dyna | 2013 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2007 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2009 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2010 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2011 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2012 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2013 | |
| Harley Davidson | Dyna Super Glide Custom | Dyna | 2013 | |
| Harley Davidson | Dyna Fat Bob | Dyna | 2008 | |
| Harley Davidson | Dyna Fat Bob | Dyna | 2009 | |
| Harley Davidson | Dyna Low Rider | Dyna | 2008 | |
| Harley Davidson | Dyna Wide Glide | Dyna | 2007 | |
| Harley Davidson | Dyna Wide Glide 105th Anniversary | Dyna | 2008 | |
| Harley Davidson | Dyna Wide Glide | Dyna | 2011 | |
| Harley Davidson | Dyna Wide Glide | Dyna | 2012 | |
| Harley Davidson | Blackline | Softail | 2011 | |
| Harley Davidson | Blackline | Softail | 2011 | |
| Harley Davidson | Softail | Softail | 2007 | |
| Harley Davidson | Softail Night Train | Softail | 2007 | |
| Harley Davidson | Softail Night Train | Softail | 2008 | |
| Harley Davidson | Softail Custom | Softail | 2009 | |
| Harley Davidson | Softail Custom | Softail | 2010 | |
| Harley Davidson | Softail Deuce | Softail | 2007 |
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