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All products have accurate in stock quantities listed, if it shows in stock it’s actually in stock!
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 0921-0125 4179 Stroker Crankshaft Crankshaft Assembly - Stroker - Yamaha

MPN: 4179 SKU: 0921-0125
Hot Rods

HOT RODS 0921-0125 4179 Stroker Crankshaft Crankshaft Assembly - Stroker - Yamaha

MPN: 4179 SKU: 0921-0125
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 Material 4140 Steel Displacement 727 cc Product Name Crankshaft Assembly Riding Style ATV Riding Style UTV Color/Finish Steel Stroke Length 89.00 mm Type Stroker Features Heavy Duty Crankshaft Model 4-Cycle Stroke Length 89,00 mm Units Assembly Part Notes Connecting rod side clearance is 0.40 mm - 0.80 mm. +5.00 mm stroke increase makes into 727 cc. Uses stock piston. Includes: • Crankshaft • MAG Crankshaft Bearing
Sold out
Original price $664.95 - Original price $664.95
Original price
$664.95
$664.95 - $664.95
Current price $664.95

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

Material 4140 Steel
Displacement 727 cc
Product Name Crankshaft Assembly
Riding Style ATV
Riding Style UTV
Color/Finish Steel
Stroke Length 89.00 mm
Type Stroker
Features Heavy Duty Crankshaft
Model 4-Cycle
Stroke Length 89,00 mm
Units Assembly

Part Notes

  • Connecting rod side clearance is 0.40 mm - 0.80 mm.
  • +5.00 mm stroke increase makes into 727 cc.
  • Uses stock piston.
  • Includes:
  • • Crankshaft
  • • MAG Crankshaft Bearing

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

Material 4140 Steel
Displacement 727 cc
Product Name Crankshaft Assembly
Riding Style ATV
Riding Style UTV
Color/Finish Steel
Stroke Length 89.00 mm
Type Stroker
Features Heavy Duty Crankshaft
Model 4-Cycle
Stroke Length 89,00 mm
Units Assembly

Part Notes

  • Connecting rod side clearance is 0.40 mm - 0.80 mm.
  • +5.00 mm stroke increase makes into 727 cc.
  • Uses stock piston.
  • Includes:
  • • Crankshaft
  • • MAG Crankshaft Bearing

Part Numbers
Store SKU MFR. Product # Availability
0921-0125 4179 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

Material 4140 Steel
Displacement 727 cc
Product Name Crankshaft Assembly
Riding Style ATV
Riding Style UTV
Color/Finish Steel
Stroke Length 89.00 mm
Type Stroker
Features Heavy Duty Crankshaft
Model 4-Cycle
Stroke Length 89,00 mm
Units Assembly

Part Notes

  • Connecting rod side clearance is 0.40 mm - 0.80 mm.
  • +5.00 mm stroke increase makes into 727 cc.
  • Uses stock piston.
  • Includes:
  • • Crankshaft
  • • MAG Crankshaft Bearing