Free Shipping.

Expert Service.

Call 888-575-6570

Millennium Big Bore Piston

Item: 390310

$219.92 – $325.34

Select Your Vehicle - Fitment Guaranteed

Millennium Big Bore Piston


  • 4-stroke pistons are made using a double-bridged forging design
  • Lightweight pistons with the tightest piston-wall clearances in the industry give you a quieter running engine
  • Engineered for maximum performance on big-bore cylinder equipped machines
  • Made in the USA
Specification Details
Bore Varies (make selection above)
Compression Ratio Varies (make selection above)
Country of Origin Varies (make selection above)
Material Varies (make selection above)
Number of Pistons Included Varies (make selection above)
Piston Diameter Varies (make selection above)
Size Over Standard Varies (make selection above)

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Polaris
  • ACE 570 2015-2018
  • ACE 900 SP 2016
  • General 1000 2016
  • RZR 4 800 2011-2014
  • RZR 570 2012-2018
  • RZR 800 2009-2014
  • RZR S 1000 2016
  • RZR S 800 2009-2014
  • RZR XP 1000 2014-2016
  • RZR XP 4 1000 2014-2016
  • RZR XP 4 900 2012
  • RZR XP 900 2011-2014
  • Ranger 570 2014-2018
  • Ranger 700 4x4 2007-2009
  • Ranger 800 2010-2011, 2013-2014
  • Ranger Crew 570 2014-2015
  • Ranger XP 900 2013-2016
  • Sportsman 570 2014-2018
  • Sportsman 700 2002-2006
  • Sportsman 800 EFI 2005-2014
  • Sportsman Touring 570 2015-2018
  • Sportsman Touring 570 EFI 2015
  • Sportsman X2 570 2015-2018
  • Sportsman X2 700 EFI 2008
Yamaha
  • Grizzly 660 4x4 2002-2008
  • Grizzly 700 4x4 2007-2015
  • Raptor 660R 2001-2005
  • Raptor 700 2013-2018
  • Raptor 700R 2006-2018
  • Rhino 660 4x4 2004-2007
  • Rhino 700 FI 4x4 2008-2009, 2011-2013
  • Viking 700 VI 2015-2018

Customer Reviews

Write Review

Be the first to review this product. How many stars would you give this product?

Questions & Answers

Ask Question

Have a question? Please ask our experts and customers who own this product.