Vehicle Fitment
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Product Description
Forged Alloy Piston
SKU: 824-01615
Manufacturer part number: KB921C.020
UPC: 800745155382
Vehicle compatibility is shown in the fitment information below.
KB forged pistons are made from 4032 forged alloy with an 11% silicon content, formed in a forging press and then fully machined. Due to the material and manufacturing process these pistons have superior crack resistance under detonation or pre-ignition. They are suited for Street or Race applications with power adders such as NOS or boost. All Twin Cam and Sportster application feature coated skirts.
Features:
Forged pistons are made from 4032 forged alloy with an 11% silicon content, formed in a forging press and then fully machined.
Due to the material and manufacturing process these pistons have superior crack resistance under detonation or pre-ignition.
Suited for Street or Race applications with power adders such as NOS or boost.
All Twin Cam and Sportster application feature coated skirts.
Replacement rings are special order.
Wrist pins and Wrist Pin Locks are sold EACH (you will need to order 2 locks per piston)Pistons sold as a PAIR.
All Rings, Wrist Pins and Wrist Pin Locks included with pistons.
Product Specifications
BrandKB PISTONS
Manufacturer Part NumberKB921C.020
ATD SKU824-01615
ClassPiston Kits & Components
DivisionEngine
Product TypePiston kits & Components
SegmentV-Twin
Sub ClassPiston / Piston Kits
Sub SegmentHD
Vehicle Fitment
Confirmed catalog applications for this product.
222 applications
Harley Davidson
FLH Electra Glide
1984–1985
✓ Confirmed
Harley Davidson
FLHR Road King
1994–1998
✓ Confirmed
Harley Davidson
FLHRC Road King Classic
1998
✓ Confirmed
Harley Davidson
FLHS Electra Glide Sport
1984, 1987–1993
✓ Confirmed
Harley Davidson
FLHT Electra Glide
1986–1987, 1995–1998
✓ Confirmed
Harley Davidson
FLHTC Electra Glide Classic
1984–1998
✓ Confirmed
Harley Davidson
FLHTCU Electra Glide Ultra Classic
1989–1998
✓ Confirmed
Harley Davidson
FLHX Electra Glide Special
1984–1985
✓ Confirmed
Harley Davidson
FLST Softail Heritage
1986–1990
✓ Confirmed
Harley Davidson
FLSTC Softail Heritage Classic
1988–1999
✓ Confirmed
Harley Davidson
FLSTF Softail Fat Boy
1990–1999
✓ Confirmed
Harley Davidson
FLSTN Softail Heritage Special
1996
✓ Confirmed
SHOW ALL FITMENTS
32 more groups
Harley Davidson
FLSTN Softail Nostalgia
1993–1995
✓ Confirmed
Harley Davidson
FLSTS Softail Heritage Springer
1997–1999
✓ Confirmed
Harley Davidson
FLTC Tour Glide Classic
1984–1993
✓ Confirmed
Harley Davidson
FLTCU Ultra Classic Tour Glide
1989–1996
✓ Confirmed
Harley Davidson
FLTR Road Glide
1998
✓ Confirmed
Harley Davidson
FXD Dyna Super Glide
1995–1998
✓ Confirmed
Harley Davidson
FXDB-D Dyna Glide Daytona
1992
✓ Confirmed
Harley Davidson
FXDB-S Dyna Glide Sturgis
1991
✓ Confirmed
Harley Davidson
FXDC Dyna Super Glide Custom
1992
✓ Confirmed
Harley Davidson
FXDL Dyna Low Rider
1993–1998
✓ Confirmed
Harley Davidson
FXDS-Conv Dyna Convertible
1994–1998
✓ Confirmed
Harley Davidson
FXDWG Dyna Wide Glide
1993–1998
✓ Confirmed
Harley Davidson
FXE Super Glide
1984
✓ Confirmed
Harley Davidson
FXEF Fat Bob
1985
✓ Confirmed
Harley Davidson
FXLR Low Rider Custom
1987–1994
✓ Confirmed
Harley Davidson
FXR Super Glide
1986–1994
✓ Confirmed
Harley Davidson
FXRC Low Glide
1985
✓ Confirmed
Harley Davidson
FXRC Low Rider Chrome
1987
✓ Confirmed
Harley Davidson
FXRD Grand Touring
1986
✓ Confirmed
Harley Davidson
FXRDG Disc Glide
1984
✓ Confirmed
Harley Davidson
FXRS Low Glide
1984–1985, 1987–1992
✓ Confirmed
Harley Davidson
FXRS Low Rider
1986
✓ Confirmed
Harley Davidson
FXRS-Conv Low Rider Convertible
1990–1993
✓ Confirmed
Harley Davidson
FXRS-SP Low Rider Sport
1986–1993
✓ Confirmed
Harley Davidson
FXRT Sport Glide
1984–1992
✓ Confirmed
Harley Davidson
FXSB Low Rider - Belt
1984–1985
✓ Confirmed
Harley Davidson
FXST Softail
1984–1990, 1999
✓ Confirmed
Harley Davidson
FXSTB Softail Night Train
1999
✓ Confirmed
Harley Davidson
FXSTC Softail Custom
1986–1999
✓ Confirmed
Harley Davidson
FXSTS Softail Springer
1988–1999
✓ Confirmed
Harley Davidson
FXSTSB Softail Bad Boy
1995–1997
✓ Confirmed
Harley Davidson
FXWG Wide Glide
1984–1986
✓ Confirmed
⚠ California Proposition 65
This product carries a Proposition 65 warning
related to cancer/developmental .
See the product packaging and manufacturer documentation for details.
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