21930-99-020 Pistons 3.75.020 99-06TC
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Specifications
- Brand
- Drag Specialties
- Part Number
- 21930-99-020
- OEM Reference
- —
- Pack Quantity
- Sold as pr
- Category
- 0911-PISTONS ONLY
- VAT Rate
- 20%
About This Product
These Drag Specialties pistons are designed for 1999 to 2006 Twin Cam style engines with a 3.75-inch bore and a +0.020 inch oversize. This specific sizing is used when cylinders require significant machining to remove wear or scoring. The pistons are crafted from a robust aluminum alloy to handle the thermal loads of the air-cooled V-twin environment. Including rings, wrist pins, and clips, this kit provides the essential hardware for a top-end restoration. Drag Specialties ensures that these pistons meet the rigorous demands of the V-twin market, offering a dependable solution for engine builders. This product is sold as a pair.
Manufacturer part number: 21930-99-020.
Fitment
50 models Cvo/Custom 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2001 | Dyna Wide Glide Limited Edition FXDWG2 |
| Harley-Davidson | 2002 | Dyna Wide Glide Limited Edition FXDWG3 |
Dyna 13 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2005 | Dyna Low Rider FXDL |
| Harley-Davidson | 2004–2006 | Dyna Low Rider FXDLI |
| Harley-Davidson | 2006 | Dyna Street Bob FXDBI |
| Harley-Davidson | 1999–2005 | Dyna Super Glide FXD |
| Harley-Davidson | 2004–2006 | Dyna Super Glide FXDI |
| Harley-Davidson | 2006 | Dyna Super Glide 35th Anniversary FXDI35 |
| Harley-Davidson | 2005–2006 | Dyna Super Glide Custom FXDCI |
| Harley-Davidson | 2005 | Dyna Super Glide Custom FXDC |
| Harley-Davidson | 1999–2004 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 2004–2005 | Dyna Super Glide Sport FXDXI |
| Harley-Davidson | 2001–2003 | Dyna Super Glide T-Sport FXDXT |
| Harley-Davidson | 1999–2005 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 2004–2006 | Dyna Wide Glide FXDWGI |
Softail 20 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2000–2006 | Fat Boy FLSTF |
| Harley-Davidson | 2001–2006 | Fat Boy FLSTFI |
| Harley-Davidson | 2006 | Heritage Softail FLSTI |
| Harley-Davidson | 2006 | Heritage Softail FLST |
| Harley-Davidson | 2000–2006 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2001–2006 | Heritage Softail Classic FLSTCI |
| Harley-Davidson | 2000–2003 | Heritage Softail Springer FLSTS |
| Harley-Davidson | 2003 | Heritage Softail Springer FLSTSI |
| Harley-Davidson | 2000–2006 | Softail FXST |
| Harley-Davidson | 2003–2006 | Softail FXSTI |
| Harley-Davidson | 2005–2006 | Softail Deluxe FLSTN |
| Harley-Davidson | 2005–2006 | Softail Deluxe FLSTNI |
| Harley-Davidson | 2000–2006 | Softail Deuce FXSTD |
| Harley-Davidson | 2001–2006 | Softail Deuce FXSTDI |
| Harley-Davidson | 2000–2006 | Softail Night Train FXSTB |
| Harley-Davidson | 2003–2006 | Softail Night Train FXSTBI |
| Harley-Davidson | 2000–2006 | Softail Springer FXSTS |
| Harley-Davidson | 2003–2006 | Softail Springer FXSTSI |
| Harley-Davidson | 2005–2006 | Softail Springer Classic FLSTSCI |
| Harley-Davidson | 2005–2006 | Softail Springer Classic FLSTSC |
Touring 15 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2006 | Electra Glide FLHT |
| Harley-Davidson | 2004–2006 | Electra Glide FLHTI |
| Harley-Davidson | 1999–2006 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 2002–2005 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1999–2006 | Electra Glide Ultra Classic FLHTCUI |
| Harley-Davidson | 1999–2006 | Road Glide FLTRI |
| Harley-Davidson | 1999–2003 | Road Glide FLTR |
| Harley-Davidson | 1999–2006 | Road King FLHR |
| Harley-Davidson | 1999–2006 | Road King FLHRI |
| Harley-Davidson | 1999–2006 | Road King Classic FLHRCI |
| Harley-Davidson | 2004 | Road King Classic FLHRC |
| Harley-Davidson | 2004–2006 | Road King Custom FLHRSI |
| Harley-Davidson | 2004–2006 | Road King Custom FLHRS |
| Harley-Davidson | 2006 | Street Glide FLHX |
| Harley-Davidson | 2006 | Street Glide FLHXI |
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