KB411020 Performance, 88" to 95" big bore piston set. +.020"
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Specifications
- Brand
- KB Performance Piston
- Part Number
- KB411020
- OEM Reference
- —
- Pack Quantity
- Sold as a set
- Category
- Pistons And Rings Kits
- VAT Rate
- 20%
About This Product
Designed for 1999 to 2006 Twin Cam A and B engines, this KB Performance piston set facilitates a big bore conversion from 88" to 95". These +.020" oversize pistons are intended for use with stock cylinders bored to 3-7/8" and stock heads, delivering a stout 10.5:1 compression ratio. The pistons are made from 390 hypereutectic cast aluminum with 16% silicone, a material choice that permits very tight operating clearances for a quiet engine and excellent wear resistance. Sold as a set, these dome-head pistons feature a 1.270" compression height. As with all high-performance KB builds, the top compression ring will need additional clearance. This is an ideal solution for riders seeking more torque and power from their early Twin Cam powerplants.
Manufacturer part number: KB411020.
Fitment
48 models99-06 Twin Cam A/B
Dyna 12 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 | 2005 | Dyna Super Glide Custom FXDC |
| Harley-Davidson | 2005–2006 | Dyna Super Glide Custom FXDCI |
| Harley-Davidson | 1999–2005 | Dyna Super Glide FXD |
| Harley-Davidson | 2004–2006 | Dyna Super Glide FXDI |
| Harley-Davidson | 1999–2005 | Dyna Super Glide Sport FXDX |
| Harley-Davidson | 2004–2005 | Dyna Super Glide Sport FXDXI |
| Harley-Davidson | 2001–2002 | Dyna Super Glide T-Sport FXDXT |
| Harley-Davidson | 1999–2005 | Dyna Wide Glide FXDWG |
| Harley-Davidson | 2004–2006 | Dyna Wide Glide FXDWGI |
Dyna Police 1 model
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2001–2002 | Dyna Defender FXDP |
Police 2 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 2005 | Road King Police Escort FLHPEI |
| Harley-Davidson | 1999–2006 | Road King Police FLHPI |
Softail 22 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2006 | Fat Boy FLSTF |
| Harley-Davidson | 2001–2006 | Fat Boy FLSTFI |
| Harley-Davidson | 2005 | Fat Boy Shrine FLSTFI |
| Harley-Davidson | 1999–2006 | Heritage Softail Classic FLSTC |
| Harley-Davidson | 2001–2005 | Heritage Softail Classic FLSTCI |
| Harley-Davidson | 2005 | Heritage Softail Classic Shrine FLSTCI |
| Harley-Davidson | 2006 | Heritage Softail FLST |
| Harley-Davidson | 2006 | Heritage Softail FLSTI |
| Harley-Davidson | 1999–2003 | Heritage Springer FLSTS |
| Harley-Davidson | 2003 | Heritage Springer FLSTSI |
| Harley-Davidson | 1999–2006 | Night Train FXSTB |
| Harley-Davidson | 2001–2006 | Night Train FXSTBI |
| Harley-Davidson | 1999 | Softail Custom FXSTC |
| 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 | 1999–2006 | Softail Standard FXST |
| Harley-Davidson | 2001–2006 | Softail Standard FXSTI |
| Harley-Davidson | 2005–2006 | Springer Classic FLSTSCI |
| Harley-Davidson | 1999–2006 | Springer Softail FXSTS |
| Harley-Davidson | 2001–2006 | Springer Softail FXSTSI |
Touring 11 models
| Brand | Year | Model |
|---|---|---|
| Harley-Davidson | 1999–2005 | Electra Glide Classic FLHTC |
| Harley-Davidson | 1999–2006 | Electra Glide Classic FLHTCI |
| Harley-Davidson | 1999–2006 | Electra Glide Standard FLHT |
| Harley-Davidson | 2006 | Electra Glide Standard FLHTI |
| Harley-Davidson | 1999–2003 | Road Glide FLTR |
| Harley-Davidson | 1999–2006 | Road Glide FLTRI |
| Harley-Davidson | 1999–2006 | Road King FLHR |
| Harley-Davidson | 2001–2005 | Road King FLHRI |
| Harley-Davidson | 2006 | Street Glide FLHX |
| Harley-Davidson | 2006 | Street Glide FLHXI |
| Harley-Davidson | 1999–2006 | Ultra Classic FLHTCUI |
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