Drag Specialties Piston - Twin Cam
Drag Specialties
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Product Details
Replacement Part for OEM Number(s) 1
- 21988-07
Drag Specialties Piston - Twin Cam. Fits 28 Harley-Davidson models from 2007 to 2013, including the FLHR Road King, FLHRC Road King Classic and FLHRS Road King Custom. Replaces OEM part number 21988-07.
Features
- OEM quality cast aluminum alloy construction
- Some fitments feature pistons with a coating that extends piston life, reduces friction and allows for cooler running engines
- Ideal for OEM replacement
- Economical with great performance, all in one package
- Kits include two pistons, wrist pins and clips
- Accept OEM or Hastings rings (order separately)
Specifications
- Package Height
- 4.5
- Package Length
- 8.25
- Package Width
- 4.5
- Parts Unlimited #
- 0911-0017
- Bore - Oversize
- Standard
- Bore Oversize - Imperial
- Standard
- Bore Size Imperial
- 3.750"
- Brand
- Drag Specialties
- Compression Ratio
- 9.2:1
- Piston Diameter Imperial
- 3.750"
- Piston Material
- Aluminum
- Riding Style
- Street
- Stroke Length (in)
- 4-3/8"
- Unit of Measure
- Kit
Fitment
28 vehicles| Year | Make | Make / Model Model |
|---|---|---|
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLHR Road King FLHR Road King |
| 2007 - 2010 | Harley-Davidson |
Harley-Davidson FLHRC Road King Classic FLHRC Road King Classic |
| 2007 | Harley-Davidson |
Harley-Davidson FLHRS Road King Custom FLHRS Road King Custom |
| 2007 - 2009 | Harley-Davidson |
Harley-Davidson FLHT Electra Glide Standard FLHT Electra Glide Standard |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLHTC Electra Glide Classic FLHTC Electra Glide Classic |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLHTCU Electra Glide Ultra Classic FLHTCU Electra Glide Ultra Classic |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLHX Street Glide FLHX Street Glide |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLSTC Heritage Softail Classic FLSTC Heritage Softail Classic |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLSTF Fat Boy FLSTF Fat Boy |
| 2010 - 2011 | Harley-Davidson |
Harley-Davidson FLSTFB Fat Boy Lo FLSTFB Fat Boy Lo |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FLSTN Softail Deluxe FLSTN Softail Deluxe |
| 2008 - 2011 | Harley-Davidson |
Harley-Davidson FLSTSB Cross Bones FLSTSB Cross Bones |
| 2007 | Harley-Davidson |
Harley-Davidson FLSTSC Softail Springer Classic FLSTSC Softail Springer Classic |
| 2007 - 2010 | Harley-Davidson |
Harley-Davidson FLTR Road Glide FLTR Road Glide |
| 2011 | Harley-Davidson |
Harley-Davidson FLTRX Road Glide Custom FLTRX Road Glide Custom |
| 2008 - 2009 | Harley-Davidson |
Harley-Davidson FXCW Rocker FXCW Rocker |
| 2008 - 2011 | Harley-Davidson |
Harley-Davidson FXCWC Rocker C FXCWC Rocker C |
| 2007 - 2010 | Harley-Davidson |
Harley-Davidson FXD Dyna Super Glide FXD Dyna Super Glide |
| 2007 - 2013 | Harley-Davidson |
Harley-Davidson FXDB Street Bob FXDB Street Bob |
| 2007 - 2013 | Harley-Davidson |
Harley-Davidson FXDC Super Glide Custom FXDC Super Glide Custom |
| 2008 - 2011 | Harley-Davidson |
Harley-Davidson FXDF Fat Bob FXDF Fat Bob |
| 2007 - 2009 | Harley-Davidson |
Harley-Davidson FXDL Dyna Low Rider FXDL Dyna Low Rider |
| 2007 - 2011 | Harley-Davidson |
Harley-Davidson FXDWG Dyna Wide Glide FXDWG Dyna Wide Glide |
| 2011 | Harley-Davidson |
Harley-Davidson FXS Blackline FXS Blackline |
| 2007 | Harley-Davidson |
Harley-Davidson FXST Softail Standard FXST Softail Standard |
| 2007 - 2009 | Harley-Davidson |
Harley-Davidson FXSTB Night Train FXSTB Night Train |
| 2007 - 2010 | Harley-Davidson |
Harley-Davidson FXSTC Softail Custom FXSTC Softail Custom |
| 2007 | Harley-Davidson |
Harley-Davidson FXSTD Softail Deuce FXSTD Softail Deuce |
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].
