Kb Performance
KB Performance Hypereutectic Piston Kit 3.750" +0.020" 8.8:1 CR 88" Twin Cam - KB425C.020 For Harley Motorcycles 1999-2006
MPN:
KB425C.020
SKU:
0910-6090
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Kb Performance
KB Performance Hypereutectic Piston Kit 3.750" +0.020" 8.8:1 CR 88" Twin Cam - KB425C.020 For Harley Motorcycles 1999-2006
MPN:
KB425C.020
SKU:
0910-6090
SKU:
0910-6090
Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy
Allows a tighter fit and longer piston and ring life
Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
Replacement piston rings sold separately
KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
Specs
Compression Ratio
8.8:1
Bore Size
3.750"
Piston Head Shape
Flat Top
Piston Material
Hypereutectic Alloy
Units
Kit
Product Name
Piston Kit
Bore Oversize
+0.020"
Riding Style
Street
1999-2000
Harley-Davidson
Dyna Convertible FXDS-CONV
1999-2006
Harley-Davidson
Dyna Low Rider FXDL
1999-2006
Harley-Davidson
Dyna Wide Glide FXDWG
1999-2006
Harley-Davidson
Electra Glide Classic FLHTC
1999-2006
Harley-Davidson
Electra Glide Classic FLHTCI
1999-2006
Harley-Davidson
Electra Glide Police FLHTP
1999-2006
Harley-Davidson
Electra Glide Police FLHTPI
1999-2006
Harley-Davidson
Electra Glide Standard FLHT
1999-2006
Harley-Davidson
Electra Glide Ultra Classic FLHTCU
1999-2006
Harley-Davidson
Electra Glide Ultra Classic FLHTCUI
1999-2006
Harley-Davidson
Road Glide FLTR
1999-2006
Harley-Davidson
Road Glide FLTRI
1999-2006
Harley-Davidson
Road King FLHR/FLHRC
1999-2006
Harley-Davidson
Softail Fat Boy FLSTF
1999-2006
Harley-Davidson
Softail Heritage Classic FLSTC
1999-2004
Harley-Davidson
Softail Heritage Springer FLSTS
1999-2006
Harley-Davidson
Super Glide FXD
1999-2005
Harley-Davidson
Super Glide Sport FXDX
2000-2006
Harley-Davidson
Dyna Wide Glide FXDWGI
2000-2006
Harley-Davidson
Electra Glide Standard FLHTI
2000-2006
Harley-Davidson
Softail Deuce FXSTD
2000-2006
Harley-Davidson
Softail Night Train FXSTB
2000-2006
Harley-Davidson
Softail Springer FXSTS
2000-2006
Harley-Davidson
Softail Standard FXST
2001-2006
Harley-Davidson
Softail Deuce FXSTDI
2001-2006
Harley-Davidson
Softail Fat Boy FLSTFI
2001-2006
Harley-Davidson
Softail Heritage Classic FLSTCI
2001-2003
Harley-Davidson
Softail Heritage Springer FLSTSI
2001-2006
Harley-Davidson
Softail Night Train FXSTBI
2001-2006
Harley-Davidson
Softail Springer FXSTSI
2001-2006
Harley-Davidson
Softail Standard FXSTI
2001-2003
Harley-Davidson
Super Glide T-Sport FXDXT
2004-2006
Harley-Davidson
Dyna Low Rider FXDLI
2004-2006
Harley-Davidson
Road King Custom FLHRS
2004-2006
Harley-Davidson
Road King Custom FLHRSI
2004-2006
Harley-Davidson
Super Glide FXDI
2004-2005
Harley-Davidson
Super Glide Sport FXDXI
2005
Harley-Davidson
15th Anniversary Fat Boy FLSTF
2005-2006
Harley-Davidson
Softail Deluxe FLSTN
2005-2006
Harley-Davidson
Softail Deluxe FLSTNI
2005-2006
Harley-Davidson
Softail Springer Classic FLSTSC
2005-2006
Harley-Davidson
Softail Springer Classic FLSTSCI
2005
Harley-Davidson
Super Glide Custom FXDC
2005-2006
Harley-Davidson
Super Glide Custom FXDCI
2006
Harley-Davidson
Softail Heritage FLST
2006
Harley-Davidson
Softail Heritage FLSTI
2006
Harley-Davidson
Street Bob FXDB
2006
Harley-Davidson
Street Bob FXDBI
2006
Harley-Davidson
Street Glide FLHX/FLHXS
2006
Harley-Davidson
Street Glide FLHXI
2006
Harley-Davidson
Super Glide FXD35
Fitment DisclosureThis quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.
Regular price
$287.95
Unit price
Shipping calculated at checkout.
Product Details
Features
- Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy
- Allows a tighter fit and longer piston and ring life
- Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Replacement piston rings sold separately
- KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
- Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
Specs
| Compression Ratio | 8.8:1 |
| Bore Size | 3.750" |
| Piston Head Shape | Flat Top |
| Piston Material | Hypereutectic Alloy |
| Units | Kit |
| Product Name | Piston Kit |
| Bore Oversize | +0.020" |
| Riding Style | Street |
| 1999-2000 | Harley-Davidson | Dyna Convertible FXDS-CONV |
| 1999-2006 | Harley-Davidson | Dyna Low Rider FXDL |
| 1999-2006 | Harley-Davidson | Dyna Wide Glide FXDWG |
| 1999-2006 | Harley-Davidson | Electra Glide Classic FLHTC |
| 1999-2006 | Harley-Davidson | Electra Glide Classic FLHTCI |
| 1999-2006 | Harley-Davidson | Electra Glide Police FLHTP |
| 1999-2006 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1999-2006 | Harley-Davidson | Electra Glide Standard FLHT |
| 1999-2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU |
| 1999-2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCUI |
| 1999-2006 | Harley-Davidson | Road Glide FLTR |
| 1999-2006 | Harley-Davidson | Road Glide FLTRI |
| 1999-2006 | Harley-Davidson | Road King FLHR/FLHRC |
| 1999-2006 | Harley-Davidson | Softail Fat Boy FLSTF |
| 1999-2006 | Harley-Davidson | Softail Heritage Classic FLSTC |
| 1999-2004 | Harley-Davidson | Softail Heritage Springer FLSTS |
| 1999-2006 | Harley-Davidson | Super Glide FXD |
| 1999-2005 | Harley-Davidson | Super Glide Sport FXDX |
| 2000-2006 | Harley-Davidson | Dyna Wide Glide FXDWGI |
| 2000-2006 | Harley-Davidson | Electra Glide Standard FLHTI |
| 2000-2006 | Harley-Davidson | Softail Deuce FXSTD |
| 2000-2006 | Harley-Davidson | Softail Night Train FXSTB |
| 2000-2006 | Harley-Davidson | Softail Springer FXSTS |
| 2000-2006 | Harley-Davidson | Softail Standard FXST |
| 2001-2006 | Harley-Davidson | Softail Deuce FXSTDI |
| 2001-2006 | Harley-Davidson | Softail Fat Boy FLSTFI |
| 2001-2006 | Harley-Davidson | Softail Heritage Classic FLSTCI |
| 2001-2003 | Harley-Davidson | Softail Heritage Springer FLSTSI |
| 2001-2006 | Harley-Davidson | Softail Night Train FXSTBI |
| 2001-2006 | Harley-Davidson | Softail Springer FXSTSI |
| 2001-2006 | Harley-Davidson | Softail Standard FXSTI |
| 2001-2003 | Harley-Davidson | Super Glide T-Sport FXDXT |
| 2004-2006 | Harley-Davidson | Dyna Low Rider FXDLI |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRS |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRSI |
| 2004-2006 | Harley-Davidson | Super Glide FXDI |
| 2004-2005 | Harley-Davidson | Super Glide Sport FXDXI |
| 2005 | Harley-Davidson | 15th Anniversary Fat Boy FLSTF |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTN |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTNI |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSC |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSCI |
| 2005 | Harley-Davidson | Super Glide Custom FXDC |
| 2005-2006 | Harley-Davidson | Super Glide Custom FXDCI |
| 2006 | Harley-Davidson | Softail Heritage FLST |
| 2006 | Harley-Davidson | Softail Heritage FLSTI |
| 2006 | Harley-Davidson | Street Bob FXDB |
| 2006 | Harley-Davidson | Street Bob FXDBI |
| 2006 | Harley-Davidson | Street Glide FLHX/FLHXS |
| 2006 | Harley-Davidson | Street Glide FLHXI |
| 2006 | Harley-Davidson | Super Glide FXD35 |
Fitment Disclosure
This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.Product Description
Features
- Manufactured from high-strength, T-5 heat-treated, 390 hypereutectic aluminum alloy
- Allows a tighter fit and longer piston and ring life
- Diamond-machined pistons are held to plus or minus one gram weight and less than one-half-thousandth-inch (.0005") tolerances from piston to piston
- Each kit contains two pistons, pins, spiral-lock pin clips and Hastings moly rings
- Replacement piston rings sold separately
- KB pistons can be installed tighter than other pistons. This results in less piston rock and better ring seal. Please read instructions included with piston for correct piston clearance.
- Due to the thermal conductivity and design of KB pistons, special attention is required to the top ring end gap. Please read instructions furnished with piston for correct ring installation.
Specs
| Compression Ratio | 8.8:1 |
| Bore Size | 3.750" |
| Piston Head Shape | Flat Top |
| Piston Material | Hypereutectic Alloy |
| Units | Kit |
| Product Name | Piston Kit |
| Bore Oversize | +0.020" |
| Riding Style | Street |
| 1999-2000 | Harley-Davidson | Dyna Convertible FXDS-CONV |
| 1999-2006 | Harley-Davidson | Dyna Low Rider FXDL |
| 1999-2006 | Harley-Davidson | Dyna Wide Glide FXDWG |
| 1999-2006 | Harley-Davidson | Electra Glide Classic FLHTC |
| 1999-2006 | Harley-Davidson | Electra Glide Classic FLHTCI |
| 1999-2006 | Harley-Davidson | Electra Glide Police FLHTP |
| 1999-2006 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1999-2006 | Harley-Davidson | Electra Glide Standard FLHT |
| 1999-2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU |
| 1999-2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCUI |
| 1999-2006 | Harley-Davidson | Road Glide FLTR |
| 1999-2006 | Harley-Davidson | Road Glide FLTRI |
| 1999-2006 | Harley-Davidson | Road King FLHR/FLHRC |
| 1999-2006 | Harley-Davidson | Softail Fat Boy FLSTF |
| 1999-2006 | Harley-Davidson | Softail Heritage Classic FLSTC |
| 1999-2004 | Harley-Davidson | Softail Heritage Springer FLSTS |
| 1999-2006 | Harley-Davidson | Super Glide FXD |
| 1999-2005 | Harley-Davidson | Super Glide Sport FXDX |
| 2000-2006 | Harley-Davidson | Dyna Wide Glide FXDWGI |
| 2000-2006 | Harley-Davidson | Electra Glide Standard FLHTI |
| 2000-2006 | Harley-Davidson | Softail Deuce FXSTD |
| 2000-2006 | Harley-Davidson | Softail Night Train FXSTB |
| 2000-2006 | Harley-Davidson | Softail Springer FXSTS |
| 2000-2006 | Harley-Davidson | Softail Standard FXST |
| 2001-2006 | Harley-Davidson | Softail Deuce FXSTDI |
| 2001-2006 | Harley-Davidson | Softail Fat Boy FLSTFI |
| 2001-2006 | Harley-Davidson | Softail Heritage Classic FLSTCI |
| 2001-2003 | Harley-Davidson | Softail Heritage Springer FLSTSI |
| 2001-2006 | Harley-Davidson | Softail Night Train FXSTBI |
| 2001-2006 | Harley-Davidson | Softail Springer FXSTSI |
| 2001-2006 | Harley-Davidson | Softail Standard FXSTI |
| 2001-2003 | Harley-Davidson | Super Glide T-Sport FXDXT |
| 2004-2006 | Harley-Davidson | Dyna Low Rider FXDLI |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRS |
| 2004-2006 | Harley-Davidson | Road King Custom FLHRSI |
| 2004-2006 | Harley-Davidson | Super Glide FXDI |
| 2004-2005 | Harley-Davidson | Super Glide Sport FXDXI |
| 2005 | Harley-Davidson | 15th Anniversary Fat Boy FLSTF |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTN |
| 2005-2006 | Harley-Davidson | Softail Deluxe FLSTNI |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSC |
| 2005-2006 | Harley-Davidson | Softail Springer Classic FLSTSCI |
| 2005 | Harley-Davidson | Super Glide Custom FXDC |
| 2005-2006 | Harley-Davidson | Super Glide Custom FXDCI |
| 2006 | Harley-Davidson | Softail Heritage FLST |
| 2006 | Harley-Davidson | Softail Heritage FLSTI |
| 2006 | Harley-Davidson | Street Bob FXDB |
| 2006 | Harley-Davidson | Street Bob FXDBI |
| 2006 | Harley-Davidson | Street Glide FLHX/FLHXS |
| 2006 | Harley-Davidson | Street Glide FLHXI |
| 2006 | Harley-Davidson | Super Glide FXD35 |
Fitment Disclosure
This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.Part Numbers
| Store SKU | MFR. Product # | Availability |
|---|---|---|
| 0910-6090 | KB425C.020 | In Stock |
Fitment
This product is vehicle specific.
Select your vehicle to confirm fitment.
This Product Fits
Fitment Disclosure
This quick reference fitment information is provided to direct you to our catalog information and the manufacturer's information. Consult manufacturer publication(s) and/or website(s) for specific fitment and application information and other important information. This fitment information is based upon the stock version of the motorcycle or unit referenced and any accessory added or other modification could invalidate the quick reference information provided.
Customer Reviews
KB Performance Hypereutectic Piston Kit 3.750" +0.020" 8....
Regular price
$287.95
Unit price
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