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Free Shipping on orders over $69.99 to the continental 48 (Alaska & Hawaii orders, call 402-214-0706 to order).
All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
Hot Rods

Hot Rods 4-Cycle Crankshaft Assembly - 4186 Kawasaki KFX450R 2008-2014

MPN: 4186 SKU: 0921-0429
Hot Rods

Hot Rods 4-Cycle Crankshaft Assembly - 4186 Kawasaki KFX450R 2008-2014

MPN: 4186 SKU: 0921-0429
Availability:
Out of stock
Factory assembled and trued to OEM specifications Drop in replacement crankshaft requires no modification unless noted CNC machined and dynamically balanced to suit the increased stroke Add +2.00 mm to +4.00 mm of stroke depending on application Uses stock piston unless noted Main bearings not included Can be matched with Cylinder Works Big Bore cylinders to get significant displacement and horsepower gains Not re-buildable as the rods are shorter than OEM. Specs Color/Finish Steel Riding Style ATV Features Heavy Duty Crankshaft Units Assembly Product Name Crankshaft Assembly Stroke Length 65.10 mm Displacement 471 cc Type Stroker Material 4140 Steel Model 4-Cycle Stroke Length 65,10 mm Part Notes Connecting rod side clearance is 0.40 mm - 0.80 mm +3.00 mm stroke increase makes 471 cc. Uses stock piston.
Sold out
Original price $364.95 - Original price $364.95
Original price
$364.95
$364.95 - $364.95
Current price $364.95

Product Details

Features

  • Factory assembled and trued to OEM specifications
  • Drop in replacement crankshaft requires no modification unless noted
  • CNC machined and dynamically balanced to suit the increased stroke
  • Add +2.00 mm to +4.00 mm of stroke depending on application
  • Uses stock piston unless noted
  • Main bearings not included
  • Can be matched with Cylinder Works Big Bore cylinders to get significant displacement and horsepower gains
  • Not re-buildable as the rods are shorter than OEM.

Specs

Color/Finish Steel
Riding Style ATV
Features Heavy Duty Crankshaft
Units Assembly
Product Name Crankshaft Assembly
Stroke Length 65.10 mm
Displacement 471 cc
Type Stroker
Material 4140 Steel
Model 4-Cycle
Stroke Length 65,10 mm

Part Notes

  • Connecting rod side clearance is 0.40 mm - 0.80 mm
  • +3.00 mm stroke increase makes 471 cc.
  • Uses stock piston.

Product Description

Features

  • Factory assembled and trued to OEM specifications
  • Drop in replacement crankshaft requires no modification unless noted
  • CNC machined and dynamically balanced to suit the increased stroke
  • Add +2.00 mm to +4.00 mm of stroke depending on application
  • Uses stock piston unless noted
  • Main bearings not included
  • Can be matched with Cylinder Works Big Bore cylinders to get significant displacement and horsepower gains
  • Not re-buildable as the rods are shorter than OEM.

Specs

Color/Finish Steel
Riding Style ATV
Features Heavy Duty Crankshaft
Units Assembly
Product Name Crankshaft Assembly
Stroke Length 65.10 mm
Displacement 471 cc
Type Stroker
Material 4140 Steel
Model 4-Cycle
Stroke Length 65,10 mm

Part Notes

  • Connecting rod side clearance is 0.40 mm - 0.80 mm
  • +3.00 mm stroke increase makes 471 cc.
  • Uses stock piston.

Part Numbers
Store SKU MFR. Product # Availability
0921-0429 4186 Out of 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.

Features

  • Factory assembled and trued to OEM specifications
  • Drop in replacement crankshaft requires no modification unless noted
  • CNC machined and dynamically balanced to suit the increased stroke
  • Add +2.00 mm to +4.00 mm of stroke depending on application
  • Uses stock piston unless noted
  • Main bearings not included
  • Can be matched with Cylinder Works Big Bore cylinders to get significant displacement and horsepower gains
  • Not re-buildable as the rods are shorter than OEM.

Specs

Color/Finish Steel
Riding Style ATV
Features Heavy Duty Crankshaft
Units Assembly
Product Name Crankshaft Assembly
Stroke Length 65.10 mm
Displacement 471 cc
Type Stroker
Material 4140 Steel
Model 4-Cycle
Stroke Length 65,10 mm

Part Notes

  • Connecting rod side clearance is 0.40 mm - 0.80 mm
  • +3.00 mm stroke increase makes 471 cc.
  • Uses stock piston.