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Cometic +4mm Big Bore Complete Cylinder Kit - 434cc - 41001-K01

  • Part #:
    140420
  • Manufacturer Part #:
    41001-K01

MSRP Price: $649.95

Our Price: $584.96

You Save:
$64.99 (10%)
Ships In 3-4 Business Days

Overview of Cometic +4mm Big Bore Complete Cylinder Kit - 434cc - 41001-K01

  • Direct bolt-on, ready-to-install cylinders; require no replating and look virtually identical to the OEM
  • Nickel Silicon Carbide plated for long life
  • Honed to exact size for easy piston installation
  • Big bore cylinders do not require machine work (unless noted)
  • Big bore cylinder kits come complete with gaskets, cylinder, piston, rings, pin and clips

Included Items:
(1) Cylinder (41003)
(1) Piston Kit (41001-P01)
(1) Top End Gasket Set (C7979)

REPLACEMENT PARTS
Replacement Big Bore Cylinder: Order No. 140422
Replacement Big Bore Piston Kit: Order No. 131455S
Replacement Big Bore Piston Rings: Order No. 131455SR
Replacement Big Bore Gasket Kit: Order No. 263954

Specs for Cometic +4mm Big Bore Complete Cylinder Kit - 434cc - 41001-K01

Type Cylinder Kit
Type Top End Kit w/Cylinder
Units Each
Weight 4.40 lbs

Specs for Cometic +4mm Big Bore Complete Cylinder Kit - 434cc - 41001-K01

Type Cylinder Kit
Type Top End Kit w/Cylinder
Units Each
Weight 4.40 lbs

Fitment for Cometic +4mm Big Bore Complete Cylinder Kit - 434cc - 41001-K01

See if this part fits your ride

Part 140420 fits the following machines

Arctic Cat
  • 2008 Arctic Cat 400 DVX
  • 2007 Arctic Cat 400 DVX
  • 2006 Arctic Cat 400 DVX
  • 2005 Arctic Cat 400 DVX
  • 2004 Arctic Cat 400 DVX
  • 2007 Arctic Cat 400 DVX Tony Stewart Edition
  • 2006 Arctic Cat 400 DVX Tony Stewart Edition
Kawasaki
  • 2003 Kawasaki KLX400R
  • 2003 Kawasaki KLX400SR
  • 2006 Kawasaki KSF400A KFX
  • 2005 Kawasaki KSF400A KFX
  • 2004 Kawasaki KSF400A KFX
  • 2003 Kawasaki KSF400A KFX
Suzuki
  • 2004 Suzuki DR-Z400
  • 2003 Suzuki DR-Z400
  • 2002 Suzuki DR-Z400
  • 2001 Suzuki DR-Z400
  • 2000 Suzuki DR-Z400
  • 2007 Suzuki DR-Z400E
  • 2006 Suzuki DR-Z400E
  • 2005 Suzuki DR-Z400E
  • 2004 Suzuki DR-Z400E
  • 2003 Suzuki DR-Z400E
  • 2002 Suzuki DR-Z400E
  • 2001 Suzuki DR-Z400E
  • 2000 Suzuki DR-Z400E
  • 2018 Suzuki DR-Z400S
  • 2017 Suzuki DR-Z400S
  • 2016 Suzuki DR-Z400S
  • 2015 Suzuki DR-Z400S
  • 2014 Suzuki DR-Z400S
  • 2013 Suzuki DR-Z400S
  • 2012 Suzuki DR-Z400S
  • 2011 Suzuki DR-Z400S
  • 2009 Suzuki DR-Z400S
  • 2008 Suzuki DR-Z400S
  • 2007 Suzuki DR-Z400S
  • 2006 Suzuki DR-Z400S
  • 2005 Suzuki DR-Z400S
  • 2004 Suzuki DR-Z400S
  • 2003 Suzuki DR-Z400S
  • 2002 Suzuki DR-Z400S
  • 2001 Suzuki DR-Z400S
  • 2000 Suzuki DR-Z400S
  • 2018 Suzuki DR-Z400SM
  • 2017 Suzuki DR-Z400SM
  • 2016 Suzuki DR-Z400SM
  • 2015 Suzuki DR-Z400SM
  • 2014 Suzuki DR-Z400SM
  • 2013 Suzuki DR-Z400SM
  • 2009 Suzuki DR-Z400SM
  • 2008 Suzuki DR-Z400SM
  • 2007 Suzuki DR-Z400SM
  • 2006 Suzuki DR-Z400SM
  • 2005 Suzuki DR-Z400SM
  • 2014 Suzuki LT-Z400 Quad Sport Z
  • 2013 Suzuki LT-Z400 Quad Sport Z
  • 2012 Suzuki LT-Z400 Quad Sport Z
  • 2009 Suzuki LT-Z400 Quad Sport Z
  • 2008 Suzuki LT-Z400 Quad Sport Z
  • 2007 Suzuki LT-Z400 Quad Sport Z
  • 2006 Suzuki LT-Z400 Quad Sport Z
  • 2005 Suzuki LT-Z400 Quad Sport Z
  • 2004 Suzuki LT-Z400 Quad Sport Z
  • 2003 Suzuki LT-Z400 Quad Sport Z
  • 2012 Suzuki LT-Z400Z Quad Sport Z Limited Edition
  • 2009 Suzuki LT-Z400Z Quad Sport Z Limited Edition
  • 2004 Suzuki LT-Z400Z Quad Sport Z Limited Edition
  • 2008 Suzuki LT-Z400Z Quad Sport Z Special Edition
5.0 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Stars
2
0
0
0
0
Fit
5.0 / 5
Quality
4.5 / 5
Style
4.5 / 5
Value
4.5 / 5
Fit
5 / 5
Quality
5 / 5
Style
5 / 5
Value
5 / 5
Great up-grade
I put this big bore kit on my bike , and wow everything fit excellent and it was so easy. I got so much more power now when i'm up in the mountains and over on the track. It was well worth the money and it was so quick to change out. I'm satisfied and happy with my choice.
March 2, 2010
Fit
5 / 5
Quality
4 / 5
Style
4 / 5
Value
4 / 5
No Review Title Entered By User
Great power increase in my WR450. The C-clips for the piston wrist pin are a bit difficult. I think the design would need a lock ring...All over good choice. Recommend rejetting your carb and a quick shot excellerator pump cover for best performance.
August 7, 2011
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Instructions and Manuals for Cometic +4mm Big Bore Complete Cylinder Kit - 434cc - 41001-K01