Kb Performance
KB Performance Hypereutectic Piston Kit 3.498" +0.030" 10.5:1 CR 80" Evolution Big Twin - KB266.030 For Harley 1984-1999
MPN:
KB266.030
SKU:
DS-751251
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Kb Performance
KB Performance Hypereutectic Piston Kit 3.498" +0.030" 10.5:1 CR 80" Evolution Big Twin - KB266.030 For Harley 1984-1999
MPN:
KB266.030
SKU:
DS-751251
SKU:
DS-751251
Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy
Allow 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 and pin lock rings available 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
10.5:1
Bore Oversize
+0.030"
Piston Material
Hypereutectic Alloy
Bore Size
3.498"
Product Name
Piston Kit
Riding Style
Street
Units
Kit
1984
Harley-Davidson
Disc Glide FXRDG
1984-1992
Harley-Davidson
FXRP
1984-1992
Harley-Davidson
Low Glide FXRS
1984-1999
Harley-Davidson
Softail Standard FXST
1984-1993
Harley-Davidson
Sport Glide FXRT
1984-1994
Harley-Davidson
Super Glide II FXR
1985-1995
Harley-Davidson
FXRPF Police
1985-1987
Harley-Davidson
Low Rider Chrome FXRC
1986-1993
Harley-Davidson
Low Rider Sport FXRS-SP
1986-1999
Harley-Davidson
Softail Custom FXSTC
1986
Harley-Davidson
Sport Glide Grand Touring FXRD
1988-1999
Harley-Davidson
Softail Springer FXSTS
1989-1990,1993
Harley-Davidson
Low Rider FXRS
1990-1994
Harley-Davidson
Low Rider Convertible FXRS-CONV
1993-1998
Harley-Davidson
Dyna Low Rider FXDL
1993-1998
Harley-Davidson
Dyna Wide Glide FXDWG
1995-1997
Harley-Davidson
Softail Bad Boy FXSTSB
1999
Harley-Davidson
FXR2
1999
Harley-Davidson
FXR3
1999
Harley-Davidson
Softail Night Train FXSTB
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
$246.95
Unit price
Shipping calculated at checkout.
Product Details
Features
- Manufactured from high-strength, T-5, heat-treated, 390 hypereutectic aluminum alloy
- Allow 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 and pin lock rings available 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 | 10.5:1 |
| Bore Oversize | +0.030" |
| Piston Material | Hypereutectic Alloy |
| Bore Size | 3.498" |
| Product Name | Piston Kit |
| Riding Style | Street |
| Units | Kit |
| 1984 | Harley-Davidson | Disc Glide FXRDG |
| 1984-1992 | Harley-Davidson | FXRP |
| 1984-1992 | Harley-Davidson | Low Glide FXRS |
| 1984-1999 | Harley-Davidson | Softail Standard FXST |
| 1984-1993 | Harley-Davidson | Sport Glide FXRT |
| 1984-1994 | Harley-Davidson | Super Glide II FXR |
| 1985-1995 | Harley-Davidson | FXRPF Police |
| 1985-1987 | Harley-Davidson | Low Rider Chrome FXRC |
| 1986-1993 | Harley-Davidson | Low Rider Sport FXRS-SP |
| 1986-1999 | Harley-Davidson | Softail Custom FXSTC |
| 1986 | Harley-Davidson | Sport Glide Grand Touring FXRD |
| 1988-1999 | Harley-Davidson | Softail Springer FXSTS |
| 1989-1990,1993 | Harley-Davidson | Low Rider FXRS |
| 1990-1994 | Harley-Davidson | Low Rider Convertible FXRS-CONV |
| 1993-1998 | Harley-Davidson | Dyna Low Rider FXDL |
| 1993-1998 | Harley-Davidson | Dyna Wide Glide FXDWG |
| 1995-1997 | Harley-Davidson | Softail Bad Boy FXSTSB |
| 1999 | Harley-Davidson | FXR2 |
| 1999 | Harley-Davidson | FXR3 |
| 1999 | Harley-Davidson | Softail Night Train FXSTB |
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
- Allow 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 and pin lock rings available 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 | 10.5:1 |
| Bore Oversize | +0.030" |
| Piston Material | Hypereutectic Alloy |
| Bore Size | 3.498" |
| Product Name | Piston Kit |
| Riding Style | Street |
| Units | Kit |
| 1984 | Harley-Davidson | Disc Glide FXRDG |
| 1984-1992 | Harley-Davidson | FXRP |
| 1984-1992 | Harley-Davidson | Low Glide FXRS |
| 1984-1999 | Harley-Davidson | Softail Standard FXST |
| 1984-1993 | Harley-Davidson | Sport Glide FXRT |
| 1984-1994 | Harley-Davidson | Super Glide II FXR |
| 1985-1995 | Harley-Davidson | FXRPF Police |
| 1985-1987 | Harley-Davidson | Low Rider Chrome FXRC |
| 1986-1993 | Harley-Davidson | Low Rider Sport FXRS-SP |
| 1986-1999 | Harley-Davidson | Softail Custom FXSTC |
| 1986 | Harley-Davidson | Sport Glide Grand Touring FXRD |
| 1988-1999 | Harley-Davidson | Softail Springer FXSTS |
| 1989-1990,1993 | Harley-Davidson | Low Rider FXRS |
| 1990-1994 | Harley-Davidson | Low Rider Convertible FXRS-CONV |
| 1993-1998 | Harley-Davidson | Dyna Low Rider FXDL |
| 1993-1998 | Harley-Davidson | Dyna Wide Glide FXDWG |
| 1995-1997 | Harley-Davidson | Softail Bad Boy FXSTSB |
| 1999 | Harley-Davidson | FXR2 |
| 1999 | Harley-Davidson | FXR3 |
| 1999 | Harley-Davidson | Softail Night Train FXSTB |
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 |
|---|---|---|
| DS-751251 | KB266.030 | 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 3.498" +0.030" 10...
Regular price
$246.95
Unit price
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