KB PERFORMANCE
Piston Kit - 3.498" +0.020" - 8.3:1 CR - 4.250" Stroke - 80" Big Twin
Part # DS-751261
$246.95
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Confirmed fit for 55 motorcycle configurations across Harley-Davidson, model years 1978–1984.
| Years | Make & Model |
|---|---|
| 1981 | Harley-Davidson Electra Glide Heritage FLH |
| 1979-1980 | Harley-Davidson Fat Bob FXEF |
| 1979-1980 | Harley-Davidson 1200 Electra Glide FLH |
| 1983 | Harley-Davidson Electra Glide Standard FLHT |
| 1981-1982 | Harley-Davidson Electra Glide Classic FLH |
| 1979 | Harley-Davidson Electra Glide FLH |
| 1979 | Harley-Davidson Low Rider FXS |
| 1979-1980 | Harley-Davidson Super Glide 80 FXE |
| 1982-1983 | Harley-Davidson Super Glide II FXRS |
| 1980 | Harley-Davidson Tour Glide Classic FLTC |
| 1978, 1980-1984 | Harley-Davidson FLH Electra Glide |
| 1984 | Harley-Davidson FLHX Electra Glide Special |
| 1981-1984 | Harley-Davidson FXE Super Glide |
| 1983-1984 | Harley-Davidson FXSB Low Rider - Belt |
| 1983 | Harley-Davidson FLHTC Electra Glide Classic |
| 1980-1983 | Harley-Davidson FLT Tour Glide |
| 1981-1983 | Harley-Davidson FLTC Tour Glide Classic |
| 1983 | Harley-Davidson FXDG Disc Glide |
| 1982-1983 | Harley-Davidson FXR Super Glide II |
| 1983 | Harley-Davidson FXRT Sport Glide |
| 1980-1984 | Harley-Davidson FXWG Wide Glide |
| 1980-1982 | Harley-Davidson FLHS Electra Glide Sport |
| 1980-1982 | Harley-Davidson FXB Sturgis |
| 1980-1982 | Harley-Davidson FXS Low Rider |
| 1981 | Harley-Davidson FXEF Fat Bob |
- 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.
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Overview
The KB PERFORMANCE DS-751261: Piston Kit - 3.498" +0.020" - 8.3:1 CR - 4.250" Stroke - 80" Big Twin. Confirmed fit for 55 motorcycle configurations across Harley-Davidson, model years 1978–1984. Ships from Greasemoto — a veteran-owned motorcycle parts shop in Fort Worth, TX — with free U.S. shipping on orders over $100.
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Fits these motorcycles
- Harley-Davidson Electra Glide Heritage FLH
- Harley-Davidson Fat Bob FXEF
- Harley-Davidson 1200 Electra Glide FLH
- Harley-Davidson Electra Glide Standard FLHT
- Harley-Davidson Electra Glide Classic FLH
- Harley-Davidson Electra Glide FLH
- Harley-Davidson Low Rider FXS
- Harley-Davidson Super Glide 80 FXE
- Harley-Davidson Super Glide II FXRS
- Harley-Davidson Tour Glide Classic FLTC
- Harley-Davidson FLH Electra Glide
- Harley-Davidson FLHX Electra Glide Special
- Harley-Davidson FXE Super Glide
- Harley-Davidson FXSB Low Rider - Belt
- Harley-Davidson FLHTC Electra Glide Classic
- Harley-Davidson FLT Tour Glide
- Harley-Davidson FLTC Tour Glide Classic
- Harley-Davidson FXDG Disc Glide
- Harley-Davidson FXR Super Glide II
- Harley-Davidson FXRT Sport Glide
- Harley-Davidson FXWG Wide Glide
- Harley-Davidson FLHS Electra Glide Sport
- Harley-Davidson FXB Sturgis
- Harley-Davidson FXS Low Rider