KB Performance Piston Kit - 3.750" +0.005" - 8.8:1 CR - 88" Twin Cam
KB Performance
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SKU: 90-35279
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Before you buy, please note:
- Kit Includes:
- • 2x Pistons
- • 2x Wrist Pins
- • 4x Spiral Lock Pin Clips
- • 2x Ring Sets
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$287.95
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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.
Specifications
| UPC | 800745265708 |
|---|---|
| Vendor Part Number | KB425C005 |
| Package Height | 4.5 |
| Package Length | 9.5 |
| Package Width | 4.51 |
| Parts Unlimited # | 0910-6088 |
| Bore Oversize - Imperial | +0.005" |
| Bore Size Imperial | 3.750" |
| Brand | KB Performance |
| Compression Ratio | 8.8:1 |
| Displacement | 88" |
| Piston Head Shape | Flat Top |
| Piston Material | Hypereutectic Alloy |
| Riding Style | Street |
| Ring Material | Moly Coated |
| Stroke Length (in) | 4.000" |
| Unit of Measure | Kit |
Fitment
| YEAR | MAKE | MODEL |
|---|---|---|
| 2005 | Harley-Davidson | 15th Anniversary Fat Boy FLSTF |
| 2006 | Harley-Davidson | Electra Glide Classic FLHTC |
| 1999 - 2006 | Harley-Davidson | Electra Glide Police FLHTPI |
| 1999 - 2006 | Harley-Davidson | Electra Glide Police FLHTP |
| 2000 - 2002 | Harley-Davidson | Electra Glide Standard EFI FLHTI |
| 1999 - 2006 | Harley-Davidson | Electra Glide Ultra Classic FLHTCU |
| 1999 - 2006 | Harley-Davidson | FLHR Road King |
| 1999 - 2006 | Harley-Davidson | FLHRCI Road King Classic |
| 2000 - 2006 | Harley-Davidson | FLHRI Road King |
| 2004 - 2006 | Harley-Davidson | FLHRS Road King Custom |
| 2004 - 2006 | Harley-Davidson | FLHRSI Road King Custom |
| 1999 - 2006 | Harley-Davidson | FLHT Electra Glide Standard |
| 1999 - 2005 | Harley-Davidson | FLHTC Electra Glide Classic |
| 1999 - 2006 | Harley-Davidson | FLHTCI Electra Glide Classic |
| 1999 - 2006 | Harley-Davidson | FLHTCUI Electra Glide Ultra Classic |
| 2003 - 2006 | Harley-Davidson | FLHTI Electra Glide Standard |
| 2006 | Harley-Davidson | FLHX Street Glide |
| 2006 | Harley-Davidson | FLHXI Street Glide |
| 2006 | Harley-Davidson | FLST Heritage Softail |
| 1999 - 2006 | Harley-Davidson | FLSTC Heritage Softail Classic |
| 2001 - 2006 | Harley-Davidson | FLSTCI Heritage Softail Classic |
| 1999 - 2006 | Harley-Davidson | FLSTF Fat Boy |
| 2001 - 2006 | Harley-Davidson | FLSTFI Fat Boy |
| 2006 | Harley-Davidson | FLSTI Heritage Softail |
| 2005 - 2006 | Harley-Davidson | FLSTN Softail Deluxe |
| 2005 - 2006 | Harley-Davidson | FLSTNI Softail Deluxe |
| 1999 - 2004 | Harley-Davidson | FLSTS Heritage Springer |
| 2005 - 2006 | Harley-Davidson | FLSTSC Softail Springer Classic |
| 2005 - 2006 | Harley-Davidson | FLSTSCI Softail Springer Classic |
| 2001 - 2003 | Harley-Davidson | FLSTSI Heritage Springer |
| 1999 - 2006 | Harley-Davidson | FLTR Road Glide |
| 1999 - 2006 | Harley-Davidson | FLTRI Road Glide |
| 1999 - 2006 | Harley-Davidson | FXD Dyna Super Glide |
| 2006 | Harley-Davidson | FXDB Street Bob |
| 2006 | Harley-Davidson | FXDBI Street Bob |
| 2005 | Harley-Davidson | FXDC Super Glide Custom |
| 2005 - 2006 | Harley-Davidson | FXDCI Super Glide Custom |
| 2004 - 2006 | Harley-Davidson | FXDI Dyna Super Glide |
| 2006 | Harley-Davidson | FXDI35 Dyna 35th Anniversary Super Glide |
| 1999 - 2005 | Harley-Davidson | FXDL Dyna Low Rider |
| 2004 - 2006 | Harley-Davidson | FXDLI Dyna Low Rider |
| 1999 - 2000 | Harley-Davidson | FXDS-Conv Dyna Convertible |
| 1999 - 2006 | Harley-Davidson | FXDWG Dyna Wide Glide |
| 2004 - 2006 | Harley-Davidson | FXDWGI Dyna Wide Glide |
| 1999 - 2005 | Harley-Davidson | FXDX Dyna Super Glide Sport |
| 2004 - 2005 | Harley-Davidson | FXDXI Dyna Super Glide Sport |
| 2001 - 2003 | Harley-Davidson | FXDXT Dyna Super Glide T-Sport |
| 2000 - 2006 | Harley-Davidson | FXST Softail Standard |
| 2000 - 2006 | Harley-Davidson | FXSTB Night Train |
| 2001 - 2006 | Harley-Davidson | FXSTBI Night Train |
| 2000 - 2006 | Harley-Davidson | FXSTD Softail Deuce |
| 2001 - 2006 | Harley-Davidson | FXSTDI Softail Deuce |
| 2001 - 2006 | Harley-Davidson | FXSTI Softail Standard |
| 2000 - 2006 | Harley-Davidson | FXSTS Springer Softail |
| 2001 - 2006 | Harley-Davidson | FXSTSI Springer Softail |
| 2006 | Harley-Davidson | Low Rider FXDL |
| 1999 | Harley-Davidson | Road King EFI FLHR |
| 2000 - 2003 | Harley-Davidson | Wide Glide EFI FXDWGI |
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].
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